archived-3d-printing

Pulsar™ Pellet Extruder: Industrial High Flow Extruder - DYZE DESIGN

11:19 PM

this is OSE's further development of the lyman extruder

11:20 PM

Should we make a google doc for any other open source FDM Filament Extruder projects?

11:22 PM

Also may be good to make one for closed source products?

have you seen these guys? https://dyzedesign.com/pulsar-pellet-extruder/ I have seen the last version in real life and looks proper. It is a small pellets extruder with a stepper motor and a coil heater around. Customized screw. Automatized feeding system. Cooling system for the hopper-feeding area... (edited)

Pulsar is a high flow plastic pellet extruder. Designed to print large parts as quickly and cost-effective as possible. Pulsar output as much as 2.5kg/h.

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Eric Lotze

Should we make a google doc for any other open source FDM Filament Extruder projects?

I would love to see such a document, and for the closed source machines too.

1:42 PM

This is something interesting that I stumbled upon: https://youtu.be/CJ0RqJknFhU

Dutch Profiles

Dutch Profiles: Dirk van der Kooij

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Hey guys, temporary working on a simple benchtop wood drill extruder. Ideas can be commented @hackaday page: https://hackaday.io/project/174610-xtruder-a-desktop-filament-extruder

Xtruder - A Desktop Filament Extruder

The goal of the project is to develop an cost effective Desktop Extruder which is capable of extruding filament, yarn and small beamsScope of the Project:- Desktop machine with housing- 300€ production cost max.- Extrusion Rate 0,5 - 2kg/h - Tolerance +/-0,1mm- Extrusion of standard materials like ABS, PLA etc.- Flakes and Pellets usableThe proj...

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Eric Lotze

Should we make a google doc for any other open source FDM Filament Extruder projects?

It would be really cool the have a complete list of filament extruders. it could in the form of a sheet, with criteria like : open/closed source, active developpement (or not), price (if sold), links, etc. I don't know if it's better to make a google sheet or just a separate page on the OSE wiki maybe?

@Ley Klussyn I agree, i'm planning on building one in the next couple months and it would be nice to have a centralized resource to reference and take inspiration from.

More from Dirk Vander Kooij, nice intro for robot based large scale printing, https://www.dirkvanderkooij.com/blogs/exhibitions/78956166-awards-show-dutch-design-week-eindhoven-nl. Robots became relative cheap and there is also post processing possible. The printhead can be replaced by another tool as a face mill or grinders (using pressure sensors=. Robots come often with toolchanger interfaces. The printhead as shown in the ´Dutch Profiles´ above uses similar specs as in v4. Around 3kW, 30 mm diameter screw and good heating components. There is btw. work in progress regarding PPv4´sh extruders for robots, OpenSource - seems lot´s of interest in that. https://vimeo.com/142690784 As alternative, here some scaffolding setups, using wires, pulleys and servos

https://www.youtube.com/watch?v=g0_OqK-ZWdU&ab_channel=CoGiRoProject | https://www.youtube.com/watch?v=NHCXvCGlw-0&ab_channel=TECNALIA (edited)

CoGiRoProject

Cable robot CoGiRo and Yaskawa SIA20F: Path Following -- ANR projec...

TECNALIA

On-site 3D printing using cable-driven robots

funny fact. I did my internship with Dirk

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Am I right that Dirk's chairs are printed flat and then bent to the desired shape under heat?

yeh, the "chubby chairs" are folded. He was looking for a way to "print" faster (<1 hours). The others ones are printed as they are and take about 3 hours.

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I know "Hangprinter" is a good OS cable one you can set up in a room, not certain on all the specs, but i'll grab that

3:32 AM

I'll set up google docs on the subjects, and make an OSE page that goes to them. I am unsure how to do it, but i think you can embed them as well, marcin does that a bunch

https://www.youtube.com/watch?v=dZLtPFJEQi0

Torbjörn Ludvigsen

Hangprinter Presentation

4:23 AM

the hang printer is such an "edge case" that there aren't many, but i'm grabbing some info on it

4:29 AM

https://hangprinter.org/resources/

Hangprinter

Cable Driven RepRap

4:29 AM

https://www.youtube.com/watch?v=gPvIHsF13D4

Thomas Sanladerer

Building the Hangprinter: What we would do differently!

Great efforts here :-) A simple GoogleSheet would be great. Easy to collaborate and export to other formats. This fields are useful over long:

Name/Label: descriptive
Category : Filament
Scope: DIY/Industrial
License: Proprietary/OpenSource
Contact: known direct contact
Price: range | precise | unknown
Size: Medium, Room
Highlights/Features: Short list of descriptive tags, as HDPE, PLA only, etc..
Location: if needed
Status: Testing/Development/Idea, Inactive
Type: project / product
Media: a small preview
Urls: any links I guess this can go for filament, printers and relevant technologies. I can set up a sync job to export this to Markdown tables or whatever suits to share this around.

(edited)

It's nearly empty, but i made this folder with subfolders, and some basic documents

7:45 PM

https://drive.google.com/drive/folders/1W6PsTEzJvs9wX38O8HPdb_3BhUu_peDZ?usp=sharing

7:45 PM

It should be open, tell me if the link works, and i am unsure on how editing works, i may need do some sort of "you ask to edit, i check the box" type of thing

The link does work, the files aren't editable without your permission

i changed it to editor i think, did that work?

Now it's "Anyone can edit"

7:55 PM

I recommend "Suggestion" mode, where everyone can alter it, but you need to approve

alrighty

¨Anyone can edit¨ is just fine, Wikipedia managed this way since decades

https://en.wikipedia.org/wiki/Wikipedia:Contributing_to_Wikipedia

Wikipedia:Contributing to Wikipedia

This page provides information and resources needed to comprehend, comment on, and edit Wikipedia. If you just want help with searching and browsing the encyclopedia, see Help:Navigation. If you want to contribute financially, see the donation page.

8:15 PM

Unstructured word documents are harder to parse and process and maintain btw.

TruthTeller

¨Anyone can edit¨ is just fine, Wikipedia managed this way since decades

https://en.wikipedia.org/wiki/Wikipedia:Contributing_to_Wikipedia

Wikipedia kept the earlier versions of pages logged

definetly, make whatever you feel is needed (you should be able to add files?) I just wanted to get a folder started and kind of get things going

8:16 PM

We could do wiki pages too maybe

github maybe

Tables seem better for this job , details can go as gist or whatever. It´s like software or hardware packages, you wanna see features and limitations / upfront before opening every link to figure all the criteria I´ve just listed . You can find this sort of tables often also on Wikipedia. GSheets has revisions too - good enough. Do as you like. Let´s not waste channel space

All organizational software ultimately becomes git in the end

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Just to sum up big robot print :-)

suitable robots start at 7000E, possibly another 2-4k for transport, setup & fixes ... (https://www.machineseeker.com/Robots/ci-99?page=1)
a v4'ish printhead with toolchanger interface is around 65-70 Kg, material around 1800 - 3000E
extras as milling heads for post material remove are relative cheap, compared

This thing could print chairs all night long

However, that's a small invest though

If you skip the robot arm stuff and stick to standard aluminium extrusion and design a new lighter extruder (you dont need the torque anyways) the printer costs under €10,000 easily. (edited)

do you just want a large print area roughly the size of a chair? (edited)

I think the robot arm print community is doing it because of massive payloads (130kG+) and non-planar prints, also outdoor and onsite seems good feature. And face milling from the side is killer too :-).

9:48 AM

Putting a unbalanced printhead with 130kG on AL beams sounds mad to me

There are tables that one can review for aspects of aluminum beam strength, and adding support via steel linear rails and plates of either aluminum or steel is already common practice for cnc with similar materials.

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@Eric Lotze

What main sections you think are worthy to be researched ? I see so far
1. small printers
2. medium printers, 1cbm
3. big printers, 2m+
4. filament
5. others: pellet maker machines, melt pumps, AC servos (high power, for cable robots, etc...), drying machines, ...

(edited)

I would say making FDM filament with consistent tolerances comprable to commercial filaments is the #1 priority

7:29 PM

I saw some OS project on a "Filament Chopper" somewhere to make pellers, but it could probably be optimized/use a more refined design

7:29 PM

Small-Medium Printers are somewhat "solved" in my opinion at least

7:29 PM

The giant ones with pellet extruders definetly have room for development (i know many of you are working on this)

7:30 PM

I'm not enough of an industry person to have even known what a melt pump is! Just looked it up, seems to stabalize the flow from an extruder more?

7:31 PM

I know "Odrive", a BLDC motor, and an encoder is an OS way to get servos

Good good. Not sure quite sure filament is actually an option for PP'ers, making pellets though would be cool - despite the material might loose one life for no real good reason :-) So let me count this down, we have (correct me if I am wrong) : 1. lot's of interest in filament but apparently typical materials in the PP world are rather unsuited for 3D print, except PET dust - which was reported successful and just needs some documentation. 2. one medium pellet printer coming from @Rory - Sustainable Design Studio | and there is another around from @DisruptivelyUseful 3. one robot printer coming from us 4. quite some research about the mentioned components (melt pump = yes, basically to keep pressure - but there are options too, eg: reverse just), there is also ready to go OS pellet making machinery but those needs more iterations please feel free to add - I am just trying to find the next possible outcomes for this channel.

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7:59 PM

I guess a simple directory of existing tech and projects would be already awesome. About commercial grade filament, I am a little scared : https://www.youtube.com/watch?v=OEkksADFjP8&feature=emb_title&ab_channel=Make%3A

Make:

How It Is Made: 3D Printing Filament

Do we have any survey/poll/feedback tool for types+ammounts of plastics people receive?

Not really - but I know that PP peer power users have access to a wide variety of plastics, recycled or not.

Hey ya'll! Happy to get involved. I visited the warehouse in Eindhoven a few years ago and am finally at a point where I can start doing something in my own town (middle of nowhere, USA). I'm interested in creating an extruder for creating 3d printer filament. 1.75mm is what all my designs are on. I have an Ender 3 pro and print and sell lots of eco stuff at our local craft market, so I have lots of plastic sitting around from projects that flunked and don't want to waste it. I've looked through this chat some and it looks like mostly its pellet extrusion. I checked the google drive link and it looks like we're all in the early stages of figuring this all out. I'm also interested in grinding up other plastics and melting them down into 3d printer filament too!

8:26 PM

Also looked into this: https://www.instructables.com/Build-your-own-3d-printing-filament-factory-Filame/ But its pellet based too

Build Your Own 3d Printer Filament Factory (Filament Extruder)

Build Your Own 3d Printer Filament Factory (Filament Extruder): Too long, didn't read: Make your own 3D printer filament ! Cheap and high quality at a decent speed of 150-190 IPM ! (4-5 meters per minute)UPDATE: Now with wiring diagram ! Long read: 3D printers are cool and they finally start to drop in pri…

I think pellets and flakes are roughly interchangable

Eric Lotze

I think pellets and flakes are roughly interchangable

From what I have read, they are if they are of uniform size. Which can be done with a sieve.

TruthTeller

Good good. Not sure quite sure filament is actually an option for PP'ers, making pellets though would be cool - despite the material might loose one life for no real good reason :-) So let me count this down, we have (correct me if I am wrong) : 1. lot's of interest in filament but apparently typical materials in the PP world are rather unsuited for 3D print, except PET dust - which was reported successful and just needs some documentation. 2. one medium pellet printer coming from @Rory - Sustainable Design Studio | and there is another around from @DisruptivelyUseful 3. one robot printer coming from us 4. quite some research about the mentioned components (melt pump = yes, basically to keep pressure - but there are options too, eg: reverse just), there is also ready to go OS pellet making machinery but those needs more iterations please feel free to add - I am just trying to find the next possible outcomes for this channel.

Even though most of PP's plastics are unsuited to standard filament makers PLA is being increasingly used in Bioplastics or compostable single use items. Which although biodegradable, takes a looooooong time. We could be converting that with PP machines into useful 3D printer filament. Never mind all those wasted 3D printed models...

Do we have any survey/poll/feedback tool for types+ammounts of plastics people receive?

@Eric Lotze I'm working on a basic webgui for managing my own supply... Once I get it running I'll open source it and/or put up an unofficial community info-collection site....hope I'll be up n running by feb

Data is huge, and that would be great!

7:59 PM

I had some page on MSW with a subsection on plastic types, with data from studies, let me grab that

7:59 PM

https://wiki.opensourceecology.org/wiki/Municipal_Solid_Waste#Plastics

Municipal Solid Waste

8:03 PM

Polyproplene can be used supposedly: https://youtu.be/yRw2mC_6A00

Anyone try to print with HDPE?

IDK, i'll look into it

8:33 PM

Also even just collecting failed prints, "print rafts/brims" , etc could get a sizeable amount if enough 3d printers exist locally

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https://youtu.be/FHop0IwzWrM maybe calls for a 'powdering' machine?

Making with Luke

Open-Source SLS 3D Printer: Project OpenFuse

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@CompostTheRich hiw much did that extruder cost in total?

@Marten - NL I haven’t built it. Just in the research phase right now

O

I need to see if i have that on the OSE page on sls printers, if not i'll add that @Karl Sagan

Hi great chat! i'm building my own refurbished, I will be sharing my expirience with you all. Im from Colombia

sounds great, best of luck!

Im talking about filament extruder lol

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Hi guys! Speaking of Open Source FDM filament makers, have you heard of the "RepRapable Recyclebot"? I was considering building one

https://www.sciencedirect.com/science/article/pii/S2468067218300208 Should I add it to the Docs page? (edited)

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uoß_

Need to be modify

So i've been thinking more on the "how to get more speed out of FDM via further development". Software Optimization is near/at the Peak, Hardware Isn't I Think? This is a method i was thinking over for making a larger/faster filament melting system WITHOUT added thermal degradation of the filament via "holding it at that melting point for too long". Essentially reduce the difference from "Ambient-Melt Temp" to "hot air->preheaterblock->heaterblock" What do you think? (edited)

@uday Nice! I´d say 2.5 - 3 mm less OD and lot´s more polish for the end (2000-3000 grid). What materials you want to use ?

10:39 PM

Respect for the depth of cut by the way, not that easy at such speeds.

Eric Lotze

So i've been thinking more on the "how to get more speed out of FDM via further development". Software Optimization is near/at the Peak, Hardware Isn't I Think? This is a method i was thinking over for making a larger/faster filament melting system WITHOUT added thermal degradation of the filament via "holding it at that melting point for too long". Essentially reduce the difference from "Ambient-Melt Temp" to "hot air->preheaterblock->heaterblock" What do you think? (edited)

Yeah, I had similar thoughts. I still need to optimize my printer, but when switching to a 0.8mm nozzle I reached into the "actually melting the plastic" bottleneck sooner than I thought. I don't really want to update my extrusion in the very near future, so my choosen next step is to work on an heated chamber. The room I print in tend to be quite cold, so even a 10-20°C~ difference may increase, somewhat, my max printing speed. Idk we'll see. Never thought of a "pre-heaterblock" (?), but if kept below the melting point (80-100°) it may give interesting results.

I don't know hard numbers

12:22 AM

would anything below the melting point be fine?

12:23 AM

Also OSE is designing a modular heating block i think for this (albeit marcin may have not thought up use as a preheater idk)

12:24 AM

https://wiki.opensourceecology.org/wiki/Scalable_Heater_Block

Scalable Heater Block

Original message was deleted or could not be loaded.

It depends what kind of plastic you want in and in which form (pellets/filament?)

3D Printing Custom Colors with Markers?! — Make Anything https://www.youtube.com/watch?v=yQwkHDDed0o

Make Anything

3D Printing Custom Colors with Markers?!

Got my first 3d printer this Christmas.

11:02 PM

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Frederik C (ZA)

3D Printing Custom Colors with Markers?! — Make Anything https://www.youtube.com/watch?v=yQwkHDDed0o

I tried to do that and faced the issue that as soon as I manually moved filament in marker holder it colored filament perfectly, but if filament pulled through tool(marker holder with marker) during printing coloring is not persistent

10:12 PM

and for sure this add moister to filament and reduce a print quality a little

Damir(nergen)

I tried to do that and faced the issue that as soon as I manually moved filament in marker holder it colored filament perfectly, but if filament pulled through tool(marker holder with marker) during printing coloring is not persistent

every try comes with challenges and errors, but this guy's results on the youtube video look guite nice!

I am wondering about if the precious plastic extrusion machine is able to extrude 3d printer fillamnet. I think that i have read at some point in the past that it could do that(maybe with a twist?), but from what i ve been reading nowadays it doesn't seem really possible. I found some standalone units aimed for this purpose and i put them in the word document mentioned previously in the conversation. I am trying to see if and how a 3d printer filament machine can be included in my plastics recycling workspace for primary school (ages 6 to 12) design. By making filament, kids could feed 3d printing pens to work with in art class (grade 1 to 6), as well as learning simple 3d programs like tinkercad and doing their own 3d prints (grade 4 to 6)

Hi folks, I need some help creating up 3d designs of a product. We can pay for the work. I also need some advise on how to go about making the product (injection, compression, or extrusion). The product is a bagless rubbish bin for offices.

3:51 PM

can anyone help?

Hi Holly, we can help with the design and DFM (Design For Manufacture in terms of Precious plastic type of tooling) and maybe another alternate process I could think off all to keep the tooling costs to be low. Would be interested to share design cost to be able to use the same here. Strangely I was just yesterday thinking of the same when I emptied my wastebasket. Some support or a phone call with PP team that has build larger molds maybe of benefit also. I am open to that also. Let me know how it goes or send me a DM!

reading further, i came to the source of my comment above. At the beginning of https://community.preciousplastic.com/academy/build/extrusion it is said that "With this machine you can create filament (challenging but doable)", and after doing my research in filament extruding machines i see that there are quite some similarities at these machines to the precious plastic extruder. Does anyone actually know of any tries being made to produce filament with the PP extruder?

Precious Plastic Community Platform

A series of tools for the Precious Plastic community to collaborate around the world. Connect, share and meet each other to tackle plastic waste.

@spiros nik As far as I am aware, Filament Companies use an single screw Extruder just like the Pp is. Additionally you need an cooling "Station" water or air cooled, which depends on the plastic your using and last but not least you need a Winder wich as the name says Winds the plastic on the spool. Shortly said it should be no problem to make 3d printer Filament with the Pp Extruder

thanks for the reply. As far as i understand, the basic difficulty in making 3d printer filament is the consistency of it while producing it. It is really important to import really clean plastics and of course use the correct temperature. The cooling station and the winder can be provided ready made by manufacturers or can be made diy. Even in some expensive equipment though, as i see it doesn't seem to be quite easy to make a thread of the correct diameter, keeping constant the profile and the diameter. This is why i would like to know if anyone has actually produce printable filament from the precious plastic extrusion machine.

So, i bumped in this video from 2016 https://www.youtube.com/watch?v=j85TPjYRezI where Dave looks like actually doing filament. I do not see any other related video in the one army channel and i do not know if there has been any improvement since then by Dave or the team. No documentation has been reported on precious plastic though, and I wonder if it is because the results where not decent, or because it is so difficult to calibrate the procedure or something. There are other filament making examples online, diy, open source or shinny expensive products. It would be nice though to have the extruder, with which you can work with bigger molds and as well be able to make filament with the same machine...

One Army

Precious Plastic - 3D printer Filament maker

Hello folks, Here me from the Netherlands. I want to buy an Ender 3 (Pro/V2?)

7:30 PM

I want to print things and sell them to earn money for a bigger project, like a pp workspace. What are things to learn on and what are things to keep an eye on? Is my plan of selling prints reliable?

7:30 PM

Sorry for my bad english

Selling 3D Prints, if done right can work ! A "Print on Demand (Online)" service isn't too profitable, a "3D Printing Service" (they give you cad / a request, and you do all the work of slicing + printing etc...) can work also BUT, In my opinion, "finding your local product niches" and/or selling various things on places like "Etsy" is the most viable business model

11:44 PM

(AND your english is fine by the way!)

11:45 PM

Also i would want to make sure you have a good "stream"/flow of the right plastics, and a filament maker that can produce "printable" filament with good dimentional tolerances

11:45 PM

On the note of 3D Printers

11:46 PM

Ender 3 requires some "fiddling" to get it to work, and often you will need upgrades as you get more "into" 3d printing

11:46 PM

BUT it has a huge community, and is low cost up front

11:47 PM

The "Original Prusa" (i forget what model is latest), is more expensive, but for the most part will "Just Work", especially if using their slicer

11:48 PM

There are a pile of ender 3 clones / variants so check that out and pick the optimal one for your case if doing that, before just buying the actual "Ender 3"

Eric Lotze

Ender 3 requires some "fiddling" to get it to work, and often you will need upgrades as you get more "into" 3d printing

(Actually, I wonder how much current Ender 3 Pro stand by themselves. I do have the original E3, and yes I had to tweak some things, but if someone buy a recent one I would expect it to work way more "out of the box" now, even if not 100%. Creality themselves changed a lot of things over the months/years.)

definetly !

12:45 AM

granted that also means you can get an "ender 3 clone" for even cheaper now !

12:46 AM

wasn't there that 80USD printer that was small, but if tuned like hell it made a d e c e n t benchy?

Rory - Sustainable Design Studio

Even though most of PP's plastics are unsuited to standard filament makers PLA is being increasingly used in Bioplastics or compostable single use items. Which although biodegradable, takes a looooooong time. We could be converting that with PP machines into useful 3D printer filament. Never mind all those wasted 3D printed models...

true... although PP plastic is kinda workable as a filament.. HDPE and LDPE on the other hand not suitable unless you do add in the carbon fiber to prevent/reduce warping. We had a kilo of milled carbon fiber to work with last year. It produces beautiful parts, but we lack a economical supplier for it. (Ali express 35usd kilo and they charged 35usd shipping by post)

I think even if you don't have much plastic compatible, it is still a good tool to have, even just the 3d printer

1:44 AM

"Digital CAD -> FDM 3D Print -> Aluminum Cast Mold " as a workflow is pretty viable

Eric Lotze

Ender 3 requires some "fiddling" to get it to work, and often you will need upgrades as you get more "into" 3d printing

Unless quality control has changed for Creality over the years - myself and a few others have all bought Ender 3 variants (3, Pro, v2), and have all worked pretty much work out of the box once assembled and the initial calibration performed (1 hour?)

3:31 AM

But yeah Ender 3 is a great printer for first time! :) Had mine for a year now, and have slowly been swapping/upgrading parts for the fun of the hobby

Hi from Argentina, I have a kossel that a freind gave to me, i now very little about 3d printing an the sofwere needed. This printer in old now, i think the wires, the arduino i all ok. but i have problems starting it up. I have problems with the configuration of the Marlin software, because this printer is an not cartesian, is a delta. I looked up in a vlog for the firmware,i had to rewrite the standar configuration of marlin, but the arduino mega 2560 couldn’t compile the software. Thanks, sorry for my bad english I put down below the link of the vlog were a got the firmware https://github.com/jhottell/KosselMarlinFirmwareSamples/blob/master/KosselXL_Configuration.h

jhottell/KosselMarlinFirmwareSamples

Sample configurations to get Marlin Firmware up and running fast on Kossel 3D printers - jhottell/KosselMarlinFirmwareSamples

Your english is fine (mi espánol de florida es poco malo tu u ! ) !

5:19 AM

So this is your 3D Printer right?:

5:19 AM

https://reprap.org/wiki/Kossel#:~:text=Kossel%20is%20a%20parametric%20delta,in%20the%20study%20of%20genetics.

Kossel

@Eric Lotze I have a starting budget of around €200. I think of this: 1: A webshop 2: selling on excisting sites like Etsy 3 selling on local markets Thats not the hard thing, and i don’t worry about hardware things on the printer. But i don’t know anything about the software like slicer, and the setup to upload prints, and things like bed leveling

@Marten - NL There are plenty videos for that on YouTube

Just search what you're looking for and for 98% of the time someone has covered this topic

Honestly ! The ender 3 / prusa / maker+open source community is h u g e so ask/look around in the right places, and you should be fine

Ok thanks!

Thoughts about Ender 3 V2

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It’s good

Cactus24

Thoughts about Ender 3 V2

I use the Creality Ender 3 and it’s really good!! Not faced a single problem in the two years I have used it

Cactus24

Thoughts about Ender 3 V2

I recently purchased a ended 3 v2. So far it’s good. I had to fiddle with couple of settings to get good prints. Waiting for some upgrade parts to come in.

2:04 AM

This is the latest part I’ve printed on it without any upgrades

2:04 AM

Initially the bowden tube keeps coming out from the feed side. After a day of struggle I finally fixed it.

2:06 AM

Still got couple of layer problem to fix. Just waiting on my Bowden update to come in. Oh also, this is on fine print settings with layer height of 0.12mm

2:07 AM

Also, does anyone know how to solve this wheel problem ? The rubber wheel material keeps wearing off when sliding on the rails

Hey there, greetings from Germany! are there any updates on the filament making? I've searched trough the messages and haven't found anything helpful yet. Can someone help me out?

what exactly are you looking for?

is there a solution yet for making filament out of shredded plastic that can be used with an 3-D printer?

there are many companies that offer their equipment in prices ranging from 400 to 12.000 euros. there are also several open source machines being made, with documentation on how to make them online. And there are people who have made filament with the precious plastics extruder (plus some extra equipment). The thing is that usually it takes some trial and error till setting up your equipment, but it is reported that it is possible to come up with printable filamnet.

Hey, I'm a Canadian mechanical engineering student who spent my last work term researching FDM printing in recycled PP and HDPE. We did some work on filament production, but my primary focus was overcoming the severe warpage and terrible buildplate adhesion associated with these feisty materials. I'd love to discuss the experiences that anyone has had printing with these materials, and hope to share some of my own as well! Probably the funniest result we found was that HDPE bonds well to duct tape, which makes it a great substrate to print on! You can also print with tall rafts in order to dissipate some of the warping strain. Happy printing!

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thanks for the input. So did you manage to produce good quality prints with PP and HDPE in the end?

@spiros nik do you by any chance have a link to those open source machines? Im currently struggling a bit with the right screw sizing

https://www.sciencedirect.com/science/article/pii/S2468067218300208

8:32 PM

https://www.appropedia.org/Recyclebot

Recyclebot

A RecycleBot is a waste plastic extruder that creates 3-D printer filament from waste plastic and natural polymers. Notice: Check out the new camera based diameter sensor

8:32 PM

https://reprap.org/forum/read.php?70,205005,page=1

Low cost 3D printing filament extruder for recycled plastics

Low cost filament extruder made from 10 mm ID stainless steel tube, silver soldered inside an ordinary plumber 15 mm copper tube (melt zone) Auger is a 10 mm wood drill bit with the end cut off 5-10 mm in the melt zone. 1 mm hole in a brass endstop at the end of the copper pipe. Aluminium block wit

8:32 PM

https://www.instructables.com/Build-your-own-3d-printing-filament-factory-Filame/

Build Your Own 3d Printer Filament Factory (Filament Extruder)

Build Your Own 3d Printer Filament Factory (Filament Extruder): Too long, didn't read: Make your own 3D printer filament ! Cheap and high quality at a decent speed of 150-190 IPM ! (4-5 meters per minute)UPDATE: Now with wiring diagram ! Long read: 3D printers are cool and they finally start to drop in pri…

8:33 PM

https://wiki.opensourceecology.org/wiki/Lyman_Filament_Extruder?fbclid=IwAR074IF-oXl7YNUuDl5V2zP0YgwZFHMxJIbZTMxnVfFsSU8bOzO_ujHlGzg#2018_-_Simplified_Version

https://www.thingiverse.com/thing:380987

8:34 PM

Lyman / Mulier Filament Extruder V5 by hlyman

The Lyman / Mulier Filament Extruder V5 extrudes filament for use in 3D printers. Features: Stepper Gear Motors LCD control of Ramps for all functions Filament Diameter Sensor Level Winding filament onto Filament Spool. Manual is 60 pages and there are 35 stl part files in the zip folder. BOM for each sub assembly is included with each exploded ...

8:34 PM

https://www.thingiverse.com/thing:34653

LYMAN FILAMENT EXTRUDER II by hlyman

The LYMAN FILAMENT EXTRUDER II is a redesign or the original LYMAN FILAMENT EXTRUDER. It features less wood parts and more steel parts, as well as other material changes. The BOM includes quotations of custom parts from emachineshop.com. It is designed for resubmittion to DFC to overcome their objection to the parts being fabricated by me as cus...

8:37 PM

https://medium.com/endless-filament/make-your-filament-at-home-for-cheap-6c908bb09922

Make your filament at home for cheap

Plastic is everywhere and it’s cheap yet we pay $20 a spool for filament. I started looking for ways to make cheap filament in my garage…

Thanks!

1

L.P.M

Hey, I'm a Canadian mechanical engineering student who spent my last work term researching FDM printing in recycled PP and HDPE. We did some work on filament production, but my primary focus was overcoming the severe warpage and terrible buildplate adhesion associated with these feisty materials. I'd love to discuss the experiences that anyone has had printing with these materials, and hope to share some of my own as well! Probably the funniest result we found was that HDPE bonds well to duct tape, which makes it a great substrate to print on! You can also print with tall rafts in order to dissipate some of the warping strain. Happy printing!

Awesome, it's hard to find anyone that's tried and studied using the plastics commonly recycled here for additive. Your key clue about duct tape as a tack surface makes me wonder if there is an avenue for a heavy duty adhesive spray layer on a flat sheet might build a similar layer. How was adhesion between layers?

@CitSciWorkshop I find for printing ABS melting a little with acetone in some cases is a great glue for the base layer, you can just rub a failed print on the acetone and it is like glue...

Makes sense as it also dissolves styrofoam

11:06 PM

Like chloroform is used for plexiglas

CitSciWorkshop

Awesome, it's hard to find anyone that's tried and studied using the plastics commonly recycled here for additive. Your key clue about duct tape as a tack surface makes me wonder if there is an avenue for a heavy duty adhesive spray layer on a flat sheet might build a similar layer. How was adhesion between layers?

Adhesion between layers was normal as long as you print at the right temperature. However, you can actually program in your own fracture layers by setting a given layer to ~10C lower than the printing temperature. This is really useful for printing on rafts or making stacked prints.

Nice. What firmware and software are you using for that? Most that I see just does first and other layers. Hand coded?

There's an option in Cura for modifying g-code

Yeah, gotcha.

To change temperature at a given layer, I'd use Cura to insert a pause command at a layer and set the idle temperature. Sometimes it takes some g-code tweaking, though.

1:24 AM

Here's a benchy we printed in commercial HDPE from filaments.ca. As you can see it warps like crazy, hence the big sacrificial raft. This worked surprisingly well to dissipate warp.

1:25 AM

This was done at 240° with a 230° layer between the raft and boat to facilitate a strong but fracturable bond.

1:26 AM

It's a funny technique, kinda wastes a lot of materia hahaha

Thanks for all the interesting links and info. For newbies like me, the first step is just getting to understand what the key concepts are. Why, in principle, is waste plastic difficult to use in printing? Once we have the basic facts, we can start moving to a PP "standard practice" and/or a knowledge base for how to print with common, post-consumer waste materials. Not as an alternative to injection / extrusion moulding, but as a complimentary technology, for when it makes to use it. (Prototypes, smaller runs, good old-fashioned laziness, etc.) And, of course, in keeping with the PP ethos, making the machines and "hacks" used to achieve the above as open-source and widely available as possible. (edited)

Also, for the occasional huge objects that would otherwise require industrial-level machines: https://discordapp.com/channels/586676777334865928/603882168934203412/727398329805176875 https://discord.com/channels/586676777334865928/603882168934203412/727398329805176875

I'm aiming for BYOP services. (Bring Your Own Plastic.)

another interesting study regarding PET filament making https://support.3devo.com/pet-recycling/

manos

Recycling PET bottles into filament: shredding and extrusion walkth...

Our experiences with the extrusion of PET bottles into 3D printing filament: shredding and extrusion walkthrough. In this study we prepare the PET bottles, shred them, and perform several adjustment steps to find the optimal extrusion settings. The quality of the filament is analyzed.

Frederik C (ZA)

Thanks for all the interesting links and info. For newbies like me, the first step is just getting to understand what the key concepts are. Why, in principle, is waste plastic difficult to use in printing? Once we have the basic facts, we can start moving to a PP "standard practice" and/or a knowledge base for how to print with common, post-consumer waste materials. Not as an alternative to injection / extrusion moulding, but as a complimentary technology, for when it makes to use it. (Prototypes, smaller runs, good old-fashioned laziness, etc.) And, of course, in keeping with the PP ethos, making the machines and "hacks" used to achieve the above as open-source and widely available as possible. (edited)

I'm just glad to have found a community for this topic! It's very specific, so I don't have a lot of peers to talk about it with. The two biggest problems with the HDPE and PP materials I worked with was 1) Severe warp caused by thermal contraction 2) Difficulty adhering to conventional build plates I'd say those are the main problems to tackle.

3

Cool! A dedicated forum for 3D-printing! Took me only a while to notice it

Anyway, we have been working hard on our printer and extruder. We had serious trouble with motor step signal disturbance, but luckily we managed to fix that this week. Now we can finalize the firmware and start with test printing soon. Here's a video clip from this weeks testing https://twitter.com/BloftLab/status/1349974963068002311?s=19 Travel speed and acceleration is beyond madness, we (probably) will never have an extruder to keep up with that pace. But as you know, there is a lot of travel involved in 3D printing, and it is wise to keep the suration as short as possible.

bloft design lab (@BloftLab)

Signal glitches fixed now, finally we can test the printer reliably. Plus we got a new speed record of 1800 mm/s travel speed, before maxing out the velocity limit set in the @ODriveRobotics boards. I think we can go even faster before losing steps. https://t.co/zs39y3oeco

2

3

2

L.P.M

I'm just glad to have found a community for this topic! It's very specific, so I don't have a lot of peers to talk about it with. The two biggest problems with the HDPE and PP materials I worked with was 1) Severe warp caused by thermal contraction 2) Difficulty adhering to conventional build plates I'd say those are the main problems to tackle.

How did you overcome these two problems? I have the same

1

bloftdesignlab

Cool! A dedicated forum for 3D-printing! Took me only a while to notice it

Anyway, we have been working hard on our printer and extruder. We had serious trouble with motor step signal disturbance, but luckily we managed to fix that this week. Now we can finalize the firmware and start with test printing soon. Here's a video clip from this weeks testing https://twitter.com/BloftLab/status/1349974963068002311?s=19 Travel speed and acceleration is beyond madness, we (probably) will never have an extruder to keep up with that pace. But as you know, there is a lot of travel involved in 3D printing, and it is wise to keep the suration as short as possible.

How did you fix it?

@Jonatan | NL by isolating the signal cables. A ground loop was enough to switch the step/dir signal state randomly. We noticed also that you have to pay extra attention to EMI caused by the long cables switching at high frequency.

bloftdesignlab

@Jonatan | NL by isolating the signal cables. A ground loop was enough to switch the step/dir signal state randomly. We noticed also that you have to pay extra attention to EMI caused by the long cables switching at high frequency.

Oké interesting I was wondering do the cables need to be the same length? Im building a CNC machine with 2 motors on the x axis. Could it cause problems if 1 motor has a shorter wire to the stepper driver?

@L.P.M PP and PE are tough nuts, since they stick basically only to themselves. Depending on the print size you can use packing tape or adhesive foil on the print bed. Tip 1: print only the first layer with heated bed. After that turn of the heat, or at least reduce it drastically. Otherwise the clue on the tape will stay soft and therefore the edges of your print start lifting once the warping starts. Tip 2: especially with PE you might want to print a thick sacrificial raft below you actual model. The warping settles after a while, so your model will be printed nicely.

@Jonatan | NL You could experience a voltage drop on the longer cables, but it's hard to say. It depends on the length of the cable. On desktop sized machines I would not expect big issues.

bloftdesignlab

@Jonatan | NL You could experience a voltage drop on the longer cables, but it's hard to say. It depends on the length of the cable. On desktop sized machines I would not expect big issues.

Oké thanks! Oké would be 1.5m other 1m

bloftdesignlab

@L.P.M PP and PE are tough nuts, since they stick basically only to themselves. Depending on the print size you can use packing tape or adhesive foil on the print bed. Tip 1: print only the first layer with heated bed. After that turn of the heat, or at least reduce it drastically. Otherwise the clue on the tape will stay soft and therefore the edges of your print start lifting once the warping starts. Tip 2: especially with PE you might want to print a thick sacrificial raft below you actual model. The warping settles after a while, so your model will be printed nicely.

Yeah, the sacrificial raft is what I ended up using for a lot of prints and it works just like you said. Also SICK PRINTER! I checked out your website and it's such a cool concept. Looking forward to more updates.

cheryllyne

How did you overcome these two problems? I have the same

Like bloft mentioned, using a pretty thick raft is a good way to go. You'll probably need some sort of special layer to ensure it sticks to the build plate though. I used regular duct tape for HDPE, and polyethylene bagging film for PPC.

1

Hiiiii, somone can help me, I am creating a proyect abaut creating 3D Filamet made by plastic bottle. I speak spanish too.

4:41 PM

Hola, necesito una ayudita. Estoy creando un proyecto de filamento 3D compuesto de botellas, necesitaría algo de asesoramiento y gente con quien hablar de ello.

Silgo

Hola, necesito una ayudita. Estoy creando un proyecto de filamento 3D compuesto de botellas, necesitaría algo de asesoramiento y gente con quien hablar de ello.

What kind of information your are looking for? I made one recycling machine to recycle plastic bottles into filament

That´s what i need

Damir(nergen)

What kind of information your are looking for? I made one recycling machine to recycle plastic bottles into filament

i would also like to know more on this please!

Silgo

Hiiiii, somone can help me, I am creating a proyect abaut creating 3D Filamet made by plastic bottle. I speak spanish too.

you can create a simple filament extruder then put in your plastic granules (edited)

7:16 PM

https://www.thingiverse.com/thing:380987

Lyman / Mulier Filament Extruder V5 by hlyman

The Lyman / Mulier Filament Extruder V5 extrudes filament for use in 3D printers. Features: Stepper Gear Motors LCD control of Ramps for all functions Filament Diameter Sensor Level Winding filament onto Filament Spool. Manual is 60 pages and there are 35 stl part files in the zip folder. BOM for each sub assembly is included with each exploded ...

jamin1!

https://www.thingiverse.com/thing:380987

thax a lot <3<3

no problem!

7:08 PM

i would make the suggestion to look into which recycle-able plastic you want to print, plastic bottles are made of PET which isn't that good for 3d printing purposes

7:09 PM

you might have some luck with the plastic bottle lids though as they are usually made of HDPE or PP which seems to be better

jamin1!

i would make the suggestion to look into which recycle-able plastic you want to print, plastic bottles are made of PET which isn't that good for 3d printing purposes

why not?

forgive me if im wrong but based off the research ive done on it its all been saying its not realy reliable in terms of adhering to itself in layers ,and its weak

12:41 AM

although id still like to try it for myself have you?,and if so whats your opinion on it

you right, layer adhesion sometimes an issue but first of all PET filament should be dried, it's extremely important the only plastic I have been recycled is PET bottles, so maybe you right and other plastics works better but I can't say that PET plastic work terrible and taking in account that it's very easy to build machine for recycling plastic bottles makes it a good start for recycling plastic at all.

2

Hey there

Im currently in the process of planning to build a extruder pro for filament extrusion but I am unsure of the screw sizing and if it is suitable. Someone over in the German forum said that the screw would be to big for filament production, as the plastic should only be melted for a short period of time(?), however I think that molten is molten and I should go as big as my motor is capable of. Is that the right approach?

Centorion

Hey there

Im currently in the process of planning to build a extruder pro for filament extrusion but I am unsure of the screw sizing and if it is suitable. Someone over in the German forum said that the screw would be to big for filament production, as the plastic should only be melted for a short period of time(?), however I think that molten is molten and I should go as big as my motor is capable of. Is that the right approach?

Screws in commercial filament production are quite a bit larger. Speed and temperature control are necessary to take into account, but there are plenty of resources to draw upon to solve that with a v4Pro size screw.

@CitSciWorkshop Thanks! So just use a screw that fits your Motor and pay attention to speed/heat Control? Besides that its just a normal 3 zone plastic screw being used, right? Just go as big as your Motor is capable of?

generally speaking, the Pro size screw is workable for filament, sits between smaller and simpler setups and larger, faster systems.

3D PRINTERS - do you have a 3D printer? Do you print using recycled filament? Are you open for business in printing custom 3D parts? If yes, let me know

Emric

3D PRINTERS - do you have a 3D printer? Do you print using recycled filament? Are you open for business in printing custom 3D parts? If yes, let me know

Hi emric, I have two 3D printer, I would like to use recycled filament. I already had tested a little business of 3D printing ( It was not very profitable) . But if you have a specific idea, I could be interested.

Emric

3D PRINTERS - do you have a 3D printer? Do you print using recycled filament? Are you open for business in printing custom 3D parts? If yes, let me know

Hi Emric, I have a 3d printer too and most of the time print with recycled filament. Where are you located?

Emric

3D PRINTERS - do you have a 3D printer? Do you print using recycled filament? Are you open for business in printing custom 3D parts? If yes, let me know

I am looking to get something 3D printed. All the files are ready to go etc. As I don’t have my own, and I want to use the PP community, I am basically lookintg for someone to get it printed for me. I am in the UK, if you can and are interested in offering a service, please message me personally and we can discuss details, costs etc.

Hi I am an experienced 3D printer using PLA and I really want to start printing with recycled milk bottles using HDPE in a localised PP business model because there are so many plastic milk bottles about. I understand that printing with HDPE is a tough task but its something I'm willing to work on. I need to get good filament beforehand so what are the filament extruders like? Is there a comparable tolerance to what you buy off the shelf +/- 0.05mm or something? Is there a particularly good machine off the shelf available EU for cheap? Thanks for any help

filastruder is one of the cheapest, if not the cheapest option available on the market. Not sure how good it is though. As i understand you need to experiment quite some before coming with acceptable results out of these machines generally. If you browse at the history of this channel you will see about different brands as well

Has anyone seen this filament extruder? https://redetec.com/products/protocycler or had any experience with it?

ProtoCycler+

ProtoCycler+ is the most advanced desktop extruder on the market. It features revolutionary extrusion hardware and digitally regulated filament diameter control. Our state of the art software enables a new level of extrusion control when experimenting with polymers and additives. Every ProtoCycler+ is fully assembled a

first time seeing this one. looks like there are quite a few brands of them out there

Not a bad price for something a bit more formed than the filastruder. And a lot less expensive than the filabot.

filafab and robotdigg look quite formed as well at same range, maybe a bit cheaper for the complete setup. Also fulfil evo looks interesting, although a bit different by the looks of it...

Hi everyone! I am from the Netherlands. I am looking for 3d printing filaments made out of recycled plastic. Do you know someone who sells them? Thanks!

Νο and no filament seems being sold on the bazaar as well...

8:13 PM

looks like whoever comes up with making some, is gonna been having customers. I think there is interest generally on this

1

Thanks for posting the link I have seen this one but I'm unsure about it. I have read online about some cheaper ones but this one looks more like what I'm after

1:03 AM

I don't think the +/-0.05mm is necessarily true because its an industry standard reference but with tuning it will probably work for what I'm looking for

Ach there was a company making filament but I can't for the life of me remember the name. They were based in the east Malaysia or Phillipines maybe. I'll do some searching tomorrow as I added them to a presentation I did on PP

Filagain?

2:45 PM

Hdpe pellets to wire tested for 3d printing

2:48 PM

Does your filament gets out consistent out if this machine Uday? Do you use a cooling line and a spooler?\

3:49 PM

I did some cooling fan system, filament measuring and filament driving system

spiros nik

Does your filament gets out consistent out if this machine Uday? Do you use a cooling line and a spooler?\

Yes it's very consistent planning for filament line too

interesting. and interesting machine! is it your own design or did you work on some other? Did you print anything with this HDPE filament yet? (edited)

Yes it's completely my own design I took nearly 2 years for design

3:56 PM

I don't have lathe or cnc machine

3:56 PM

The output didn't tested

I also assume you have a hopper connected at the top of the pipe in order to input the shredded plastic, right?

nice and compact

spiros nik

nice and compact

thank youu

4:05 PM

1

Made a filament winder (which can be made using recycled filament) for a colab project with @CitSciWorkshop

7

8

Rory - Sustainable Design Studio

Made a filament winder (which can be made using recycled filament) for a colab project with @CitSciWorkshop

Amazing ! What's your captor for the filament diameter ?

Has auto calibration for the diameter and logs the data in real time on the pc. So you can review the stats of your spool and check for defects

6

2:40 PM

1

2:41 PM

Will be releasing a Do It Yourself kit on the bazar soon. As some of the parts are hard to source.

7

Wow that's very complete

Looks great!

Rory - Sustainable Design Studio

Made a filament winder (which can be made using recycled filament) for a colab project with @CitSciWorkshop

looks really well made! congrats! Do you maybe plan to release blueprints for this at some point?

Seems AMAZING @Rory - Sustainable Design Studio (i'm just doing a "before i go to bed" check now, but i will LOVE to dive into that tomorrow)

2

Hi, my name is Jennifer and I am just starting my graduation semester at Amsterdam Fashion Insitute. I was wondering if someone could help me or knows a company that could help me to make my own 3D printer filaments from recycled fishing nets? I have tons of different nets in various thicknesses and colours from a prievious collection that I would love to use in a new and sustainable way! Any help is appreciated.

JFager

Hi, my name is Jennifer and I am just starting my graduation semester at Amsterdam Fashion Insitute. I was wondering if someone could help me or knows a company that could help me to make my own 3D printer filaments from recycled fishing nets? I have tons of different nets in various thicknesses and colours from a prievious collection that I would love to use in a new and sustainable way! Any help is appreciated.

Hi! I can't suggest anyone who can recycle it for you, but I can share a link on a simple process which you can try to make your own filament: https://youtu.be/8fh9-WyRe9s?t=147 on this video he made filament from VHS tapes. maybe you can do something similar to create filament from fishing nets. there is russian forum with info how to make this machine https://3deshnik.ru/forum/viewtopic.php?f=7&t=986&sid=6a171f197f95518cdbe0f68f86f40813 you can translate it with google

Brother

Печать вещей VHS видеокассетами. Магнитный, токопроводящий филамент...

2

Hey everyone

We are a German student startup and we develop and build machines for filament production and recycling. Check out our winder at the Bazar: https://bazar.preciousplastic.com/machines/extruder/extruder-kits/title-jarvis-winder-achieve-perfect-winding-with-your-extruder/ It achieves perfect winding for a reasonable price. Also, feel free to visit our website

https://www.qitech.de/en/industries

JARVIS Winder - achieve perfect winding with your extruder!

Industries

The new way to produce material for 3D printing. Extrude and wind filament to perfection.

1

the winder looks nice

Do you also have a video with it spooling filament out of a precious plastic extrusion machine?

spiros nik

the winder looks nice

Do you also have a video with it spooling filament out of a precious plastic extrusion machine?

Thank you! Yes, check out this video on our YouTube Channel: https://youtu.be/RlcXQptePq8. We are working on a proper video on how to connect our winder to any extruder, so be curious

Get a sneak peak of our production line! | Make 3D-printing filament

3

QiTech Industries

Thank you! Yes, check out this video on our YouTube Channel: https://youtu.be/RlcXQptePq8. We are working on a proper video on how to connect our winder to any extruder, so be curious

nice! Do you use air fans in this cooling line between the extruder and the winder? Also have you been managing to produce filamnet with good tolerances with this setup?

spiros nik

nice! Do you use air fans in this cooling line between the extruder and the winder? Also have you been managing to produce filamnet with good tolerances with this setup?

Yes, we use air fans and we actually achieved good results! Of course we had to tune the settings a bit to the material being extruded (e.g. winding speed, fan speed etc.) but when we actually had the correct settings we achieved a tolerance of ± 0.03 mm.

1

sounds proper!

In need of immediate help! Hi everyone, my name is Jennifer and I am just starting my graduation semester at Amsterdam Fashion Institute. I have just bought my first 3D printer, The Creality Ender 3, and the idea for my collection is to 3D print various patterns onto stretched fabric that when released created self forming structures.  To start with I have had major issues leveling the bed properly even though I have followed all different tutorials found online.. Secondly every time I have tried printing on either a flat woven fabric or stretch fabric the nozzle just get caught even though I made sure it was flat, is this also because my bed is not leveled or is it because the fabric is thicker than what was calibrated when leveling the bed? Another question I have is if I want to print on a stretch fabric that is thicker than for example Tulle, do I Autohome the printer with the fabric on the bed to make sure it’s not too close to the nozzle?  So sorry for all the confusion and questions but I am just really not experience with this and need to figure this out asap if I want to use this technique for my graduation project… Any help is appreciated!

JFager

In need of immediate help! Hi everyone, my name is Jennifer and I am just starting my graduation semester at Amsterdam Fashion Institute. I have just bought my first 3D printer, The Creality Ender 3, and the idea for my collection is to 3D print various patterns onto stretched fabric that when released created self forming structures.  To start with I have had major issues leveling the bed properly even though I have followed all different tutorials found online.. Secondly every time I have tried printing on either a flat woven fabric or stretch fabric the nozzle just get caught even though I made sure it was flat, is this also because my bed is not leveled or is it because the fabric is thicker than what was calibrated when leveling the bed? Another question I have is if I want to print on a stretch fabric that is thicker than for example Tulle, do I Autohome the printer with the fabric on the bed to make sure it’s not too close to the nozzle?  So sorry for all the confusion and questions but I am just really not experience with this and need to figure this out asap if I want to use this technique for my graduation project… Any help is appreciated!

Hi,

Firstly, I would recommend you to get used to the bacis : just go throught the calibration process (for example, this one : https://teachingtechyt.github.io/calibration.html), and then try to get a good print (whatever you like)
Then, you can add the fabric : level the bed at heated temperature, with the fabric on, and launch your print

tsiour_p

Hi,

Firstly, I would recommend you to get used to the bacis : just go throught the calibration process (for example, this one : https://teachingtechyt.github.io/calibration.html), and then try to get a good print (whatever you like)
Then, you can add the fabric : level the bed at heated temperature, with the fabric on, and launch your print

So I should start with leveling the bed noramlly, making a calibration test print and then adding the fabric? Other people from another forum said that I should adjust the z offset to acount for the fabric, could this be a good idea?

going step by step, as TPeyron (MDG) suggests, is a great idea. I suggest also to do so

I successfully DIY a 3D printing filament extruder, including a shredder

8

1

nice video. thanks for sharing

@QiTech Industries Nice winder! So you create tension on the filament wire by running the puller slower than the winder? But does this not result in sudden skips at the puller?

Marcel123095

@QiTech Industries Nice winder! So you create tension on the filament wire by running the puller slower than the winder? But does this not result in sudden skips at the puller?

No, it works a bit differently. When hooking the winder to the extruder, we set the puller speed to something similar to the extrusion speed and the speed of the spool motor adjusts itself depending on the tension that is put on it. So the tension can't even get high enough that skips could happen. If the tension gets too high, the spool decelerates, if the tension gets too low, the spool accelerates. This system is actually very quick and dynamic so that the extruded filament doesn't have inconsistencies in diameter.

Do you also offer an extruder? I saw something related on your website but couldn't find any link.

@QiTech Industries That is very nice, and saves the need for a sensor that keeps track of the tension on the wire.

spiros nik

Do you also offer an extruder? I saw something related on your website but couldn't find any link.

We are currently developing our extruder! We hope that we can launch it in Spring, so be curious

1

Marcel123095

@QiTech Industries That is very nice, and saves the need for a sensor that keeps track of the tension on the wire.

Exactly!

@QiTech Industries One more question, does the winder keep track of the number of turns? Because I believe the wire per turn increases when the spool becomes full so you need to decrease the filament guide step frequency to get a perfect wind.

Howdy all

11:58 PM

I was here awhile ago looking at setting up a precious plastic shredding setup here in Nunavut, Canada

1

11:58 PM

However, I also spoke with someone who was working on this cool project too.

11:58 PM

https://www.3dnatives.com/en/concrete-with-3d-printed-polymer-lattices-301020205/

Reinforcing concrete with 3D printed polymer lattices - 3Dnatives

UC Berkeley developed concrete with 3D printed polymer lattices to improve concrete’s ductility while reducing the material’s carbon emissions.

11:59 PM

The specific technique that I'm looking at working on involves recycling plastic with 3D printing using a CR-30 print mill to make large lattice bricks that can be filled with aircrete to make strong, insulated walls

12:01 AM

The base question that I'm interested in determining is if that can be combined with the precious plastic sheet press to make insulation panels that can be directly attached to buildings as form of applique insulation

12:01 AM

As well as weather proofing, etc. The Dome of Visions in Denmark used polycarbonate shets to make a dome, but in the context of their system they used bolts/nuts to tighten the polycarbonate sheets together to make water proof seals for the dome exterior. That can probably be done with this sort of setup too.

12:03 AM

Sorry, not MIT. Berkeley.

Marcel123095

@QiTech Industries One more question, does the winder keep track of the number of turns? Because I believe the wire per turn increases when the spool becomes full so you need to decrease the filament guide step frequency to get a perfect wind.

Yes, the Winder precisely keeps track of the microsteps and rotations of the motors and adjusts the steps of the filament guide accordingly.

@Emric Hi Emric. We are just about to finish our gigantic 3D-printer with pellet extrusion capabilities for using almost any kind of granulated thermoplastic as raw material. Print volume will be around 1000mm diameter x 3500mm height or 2.75m3. We will start to offer on-demand printing service first in Finland, but short after also in Europe. If this is something that would be interesting to you, please head to our website www.bloft.fi and/or send us a DM. (edited)

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9:24 AM

@Isi You should look for www.filamentive.com they offer a range of high quality filaments made of recycled plastic

9:30 AM

@JFager Hey Jennifer! I assisted a textile design student a few years ago with excatly the topic you are working on. You can download her thesis here https://www.theseus.fi/bitstream/handle/10024/172732/Koivunen_Svetlana.pdf?sequence=2&isAllowed=y There's an abstract in english. For other parts you should run the file through Google Translate. You will find many answers to your questions there

9:37 AM

Aaaand, here some pics from yesterday

the last electrical issues are fixed now. Next week you can expect the first test print

2

5

2

@bloftdesignlab What plastic you going to try first?

Polypropylene and HDPE. And PLA

Is the bed heated? I'm interested to see how your manage your warping.

PETG would be cool too

9:23 PM

If you could 3d print PETG with recycled PETG products, you'd have very interesting structural properties.

@Rory - Sustainable Design Studio yes, it is. Around 2-3 kW heating power. We will also have an enclosure the whole printer, so we can control the chamber temperature. But with PP and HDPE the trick isn't the heat, in opposite you want to avoid it after the first layer. It's one thing when printing small, the large size could still offer surprise. But we will soon know better.

1

@sirukin PETG is a nice material, but it not so widely available that PET.

11:41 PM

Yeah that makes sense. This is my PP print, but I screwed the first layer down to avoid warping.

Hello, I am an engineering student who wants to make an extrusion. I have a question about the mechanism. The site describes the temperature control as follows: The first three elements (barrel) should be set at a slightly lower temperature than the last one near the nozzle. This is to make sure the plastic gets a last boost of heat right before it comes out. I have a few questions here. 1. Does this temperature control have to set the temperature of each band heater differently? 2. Why should the temperature of the last nozzle be higher? Doesn't the plastic come out solidified only when the temperature of the last nozzle is lower than the first three elements? 3. Like the extrusion video on the site, can I set the temperature as above to extract the plastic from the nozzle at the end? What is the principle? Doesn't I need a separate cooling system?

ok so I'll try keeping up with this forum but its sorta intentionally disorganized compared to google groups...

9:39 PM

wanting to know if anybody has an all in one recycled plastic 3d printer? as if they put a bunch of saw blades above a hopper that is held by a mini robotic arm end effector that extrudes 3d plastic... something the size of like a potato can

bloftdesignlab

Aaaand, here some pics from yesterday

the last electrical issues are fixed now. Next week you can expect the first test print

Hi, that's very kind of you! Thank you so much

Here's a quick teaser of our printer in action https://youtu.be/jk4dBmLVkdU On friday we got it ready, next week we move on to fine tuning the settings. This is a big dream coming true.

bloft design lab

First extrusions on the Bloft Mk2 large-scale 3D-printer

5

That's super cool!!!

Thanks

1

sirukin

https://www.3dnatives.com/en/concrete-with-3d-printed-polymer-lattices-301020205/

And another way to use recycled plastic to fortify concrete: https://news.mit.edu/2017/fortify-concrete-adding-recycled-plastic-1025

MIT students fortify concrete by adding recycled plastic

MIT students have developed a form of concrete using recycled plastic water bottles. The new material is 20 percent stronger than traditional concrete and could help cut the cement industry’s carbon emissions.

1

Rory - Sustainable Design Studio

Click to see attachment 🖼️

How did you "screw the first layer down"?

Nathan-PPLancaster

Has anyone seen this filament extruder? https://redetec.com/products/protocycler or had any experience with it?

the reviews are scathing...

spiros nik

looks like whoever comes up with making some, is gonna been having customers. I think there is interest generally on this

I'm waiting as patiently as I can to hear if a couple of engineering students are keen to create an extruder that can make 3D filament from our local household #5 shred... I know it's going to be a challenge but past students have provided a platform with their learning. If we get the students signed on I'll share updates as and when.

https://www.instagram.com/p/CL7QYERHjKv/?igshid=oas44iwsq7w6 @cheryllyne you can see here the screws to prevent warping of the PP in the base layers. It significantly improves the prints and can easily be removed at the end.

This looks amazing. https://thenewraw.org/

The New Raw

The New Raw - from waste to product with 3D printing

Hi Guys how are you? I'm trying to develop a project very similar to the new raw. I would like to develop a system to 3d print plastic waste. I'm interested in having a high performance system mounted on a robotic arm. If anyone living in the Paris area is interested, please contact me and I will explain the project in more detail. Have a good day

Rory - Sustainable Design Studio

https://www.instagram.com/p/CL7QYERHjKv/?igshid=oas44iwsq7w6 @cheryllyne you can see here the screws to prevent warping of the PP in the base layers. It significantly improves the prints and can easily be removed at the end.

Cool!!!

@Rory - Sustainable Design Studio Ah, hey that's you

let's setup a call! Next week? I'll DM you my email address. Btw, do you experience warping/cracking in higher parts of your prints? I'm thinking of different methods of keeping the part evenly heated to prevent internal stress which could lead to delamination at some point.

7:57 AM

@P3rr0 We are looking for beta testers of our Badass Pellet Extruder and our 3D-printer. Head over to www.bloft.fi for more information.

1

Thanks @bloftdesignlab

이동혁

Hello, I am an engineering student who wants to make an extrusion. I have a question about the mechanism. The site describes the temperature control as follows: The first three elements (barrel) should be set at a slightly lower temperature than the last one near the nozzle. This is to make sure the plastic gets a last boost of heat right before it comes out. I have a few questions here. 1. Does this temperature control have to set the temperature of each band heater differently? 2. Why should the temperature of the last nozzle be higher? Doesn't the plastic come out solidified only when the temperature of the last nozzle is lower than the first three elements? 3. Like the extrusion video on the site, can I set the temperature as above to extract the plastic from the nozzle at the end? What is the principle? Doesn't I need a separate cooling system?

I know these questions were asked a while ago, but responding now in case you're still looking or if someone else has similar questions! 1. Yes, see #2 2. If you imagine an extrusion screw running without any plastic in it, the empty volume in between each ridge decreases as you get closer to the nozzle. Now you've got plastic in the tube, this shape creates an increasing pressure, but because the volume behind it is greater, still allows air to escape backwards. This is necessary so you don't extrude air along with your plastic - a fault which can make your extrusion bubbly or at the very least inconsistently sized. The only way that works is if the plastic is not ENTIRELY molten as it passes along the length of the shaft, and only melts fully at the very end. Also, you need the plastic to behave as a solid closer the base of the screw so that pushing on it creates pressure rather than the plastic just flowing around it as a liquid would. Further, the plastic needs to be soft enough once extruded that it can be stretched by the puller to the correct size. It does not get extruded at 1.75mm or 3mm. It gets extruded much larger and then "pulled" to the right diameter. Ideally it would be cooled almost immediately in a warm water bath, then a cool water bath, dried, go through the puller/diameter sensor, then dried and cooled the rest of the way with fans and a long extrusion line before being spooled.

Hello, Is anyone here based in or around amsterdam that could help me make my own filament (1.75mm) from resycled fishing nets? I would truly appreciate it since I am using 3D printing for my graduation fashion collection and the collection is based on ocean pollution. I have tons of different fishing nets from a previous project already so I just need help with turning it into a filament that workd for my Ender 3. Please contact me if you or know anyone else that can help!

️ (edited)

Or if someone can at least help me shred them and make it into pellets!

@JFager Really cool idea. I know there are a lot of workspace in the Netherlands. You have StudioMBB, and there is Community Plastics also Better Future Factory made filament from PET before. Now I don't know how free everyone is to make filament for you but its a start!

Rory - Sustainable Design Studio

@JFager Really cool idea. I know there are a lot of workspace in the Netherlands. You have StudioMBB, and there is Community Plastics also Better Future Factory made filament from PET before. Now I don't know how free everyone is to make filament for you but its a start!

Thank you, I will look it up!

https://www.youtube.com/watch?v=j85TPjYRezI&list=RDCMUCqA-SppbeUi5ou0isB27mgg&index=11

One Army

Precious Plastic - 3D printer Filament maker

2:41 PM

hello, who can help me with this? i want to make this

Is anyone aware of the most effective way to get consistent filament from an extruder since we aren’t using pellets but large bags instead

5:53 PM

Or if anyone knows how to convert them into pellets

@Alyx._.cos (Granted i am not the best person to ask, as i have no "hand on" experience (yet) ) BUT,

12:26 AM

If i remember correctly, the best workflow was Used Bags->Cleaned Bags->Melted Together Bag sheets/blobs->Shredded Flakes

12:26 AM

You kind of make something out of them that "shreds better"

12:27 AM

But again take that with a grain of salt, we can try and find someone who has done something similar maybe

Eric Lotze

But again take that with a grain of salt, we can try and find someone who has done something similar maybe

We were trying that method but I like we are going to makeshift a shredder at the point

So the issue is you do not have a shredder yet?

On the note of FDM Filament Makers, this is probably the best open source option out there, at least as of now:

1:32 AM

https://wiki.opensourceecology.org/wiki/Lyman_Filament_Extruder

https://www.youtube.com/watch?v=MRQKmRvfZMI

Cool

2:57 AM

@cheryllyne Thanks for the link

We're looking at options for our next machine, at present we can make flat sheets of plastic, and thinking about a laser cutter. Has anyone used a snapmaker 2.0 for cutting plastic? Any reviews from users would be very welcome.

CathdM

We're looking at options for our next machine, at present we can make flat sheets of plastic, and thinking about a laser cutter. Has anyone used a snapmaker 2.0 for cutting plastic? Any reviews from users would be very welcome.

I wouldn't @CathdM - SM2 doesn't have a v powerful laser (about 1.7W I think) and it doesn't have an enclosure with high air flow as standard. It's also expensive for that use alone. With that said I think the CNC element could do it. I use a Glowforge basic which is 40W and enclosed. I run that at full power to cut 2mm sheets of PP and LDPE. I can tell you it creates a lot of smoke when cutting. You really really want an enclosure!

1

9:45 AM

uday

Click to see attachment 🖼️

The filament was very consistent but the surface of the filament is not that much smooth and the motor also feeling difficult during extrusion some times stops rotating...?

uday

Click to see attachment 🖼️

The length of the barrel is 150cm and the heating zone is 6cm so I placed a 200w 230v 6cm heater and I also placed one more 150w heater but I didn't powered it I extruded at 250deg and 20cm I'd extrusion pipe with 5mm wall thick

@uday Nice design, what did you use for the insulation of the barrel?

I used a piece of nylon(lorry tier) between pellet barrel and barrel where as barrel pipe covered with fiber glass wool

Eric Lotze

On the note of FDM Filament Makers, this is probably the best open source option out there, at least as of now:

Do you know the following one. IT should be also a really good Maschine: https://reprap.org/wiki/Recyclebot

Recyclebot

1

3:48 AM

Accidentally my machine supports fiber production too

3:48 AM

Hi all, is there an ideal speed of the extruder internal auger rotating to have a consistant filament diameter? or any other suggestions for consistant diameter?

@[CSME] Sara Ordonselli Dried flakes (cause moisture creates bubbles and changes in flow) compression auger, even sized 5mm or less flakes and pressure ensuring an even feed of flakes.

1

diy chen

50$ DIY 3D print Filament Extruder to Mini Shredder 2-in-1 machine ...

Cool idea, but $50 is impossible. Unless $50 in local currency = $400USD. Nice build though.

heroZ88888

https://www.youtube.com/watch?v=MRQKmRvfZMI

Good video. Good morning. I am student and we have a project to build a filament extruder from a PLA material. Can some one help our team on the project ? choosing motors , electronis controllers etc. Thanks .

2:59 PM

I am no clue where to begin , where to start .

bektur

I am no clue where to begin , where to start .

Too many people make it, and it's not worth wasting time to study it. You just copy one

but there is no data at all.

https://wiki.opensourceecology.org/wiki/Lyman_Filament_Extruder

All you need to know about Polycarbonate (PC) for 3D printing - 3Dn...

10:05 PM

The page may be a bit messy, but it should have some good data

10:05 PM

@bektur

@Rory - Sustainable Design Studio Agreed! Build for $50 is not possible, not even in the lowest possible quality.

7:37 AM

@heroZ88888 Great attitude! I wonder how humans brought it this far

9

3

4:35 PM

We used PC to 3D print moulds...turned out pretty well!

really interesting! did you use the injection machine with this mold? Did you make already a lot of copies? How is the mold responding to this?

Rory - Sustainable Design Studio

Click to see attachment 🖼️

what kind of filament did you use to make the mold that can withstand the temperature of injected plastic?

"PC" is an abbreviation for "Polycarbonate": https://www.3dnatives.com/en/polycarbonate-pc-for-3d-printing-110220204/

What are the characteristics of polycarbonate (PC)? What should you know before 3D printing with this material? Discover our complete guide on PC!

12:21 AM

really great material, but hard to print (edited)

Yeah, hard to print and requires a hot end that can handle really high temperatures

probably a passively or better actively heated build chamber too

3:03 AM

still MUCH more accessible than metal machining

3:03 AM

(also with a print farm you could make many, with the same repeatable quality)

Rory - Sustainable Design Studio

Click to see attachment 🖼️

Oh hello Rory, didn’t expect to see you here although I should have. Are you in Lancaster? I saw you on the PP Lancaster page, also, how do you print with PC on the Prusa? Do you have an enclosure and all metal hotend? Cheers

Rory - Sustainable Design Studio

Yeah, hard to print and requires a hot end that can handle really high temperatures

I presume that is why you chosen PC as the material for the mold, so it wistands the heat of lower melting point plastics?

10:32 PM

Maybe its obvious, just wanted to make sure my reasoning is solid

Hello PP community. Is here anyone, who is creating own recycled filament, from HDPE, or PP or similar, and then printing from it, some practical things ? Im interested to prototype this technology, but not sure where to start

thanks for the tips

(edited)

1

You could also look into pellet extruders but I have no experience: https://duckduckgo.com/?q=3D+printer+pellet+extruder+&t=ffab&ia=web

Amitabha

I presume that is why you chosen PC as the material for the mold, so it wistands the heat of lower melting point plastics?

Exactly, it's the highest temperature plastic I can 3D print.

Loud

Oh hello Rory, didn’t expect to see you here although I should have. Are you in Lancaster? I saw you on the PP Lancaster page, also, how do you print with PC on the Prusa? Do you have an enclosure and all metal hotend? Cheers

I'm in London, I just like to collaborate with the Precious Plastic Lancaster crew as they have a lot of experience producing products for clients.

Ah radical, they ignored the form I filled out on their website so maybe they’re too posh for a designer like me

Martin PP Slovakia

Hello PP community. Is here anyone, who is creating own recycled filament, from HDPE, or PP or similar, and then printing from it, some practical things ? Im interested to prototype this technology, but not sure where to start

thanks for the tips

(edited)

Hey Martin, we are looking into creating filament atm, however we would probably start with commonly printed plastics(PLA) and recycle the failprints in collaboration with makerspaces

Loud

Ah radical, they ignored the form I filled out on their website so maybe they’re too posh for a designer like me

Hey! REALLY sorry we didn't reply to your message. We're trying to keep up with inquiries but stuff slips through the net now and then - definitely NOT a snub. If you send your request direct to me via DM here I'll get back to you for sure this time. Sorry again!

8

2

1

2:04 PM

I finally got round to printing something REALLY BIG...and it only took 6hrs...

5

2

Rory - Sustainable Design Studio

I finally got round to printing something REALLY BIG...and it only took 6hrs...

JUST

Rory - Sustainable Design Studio

I finally got round to printing something REALLY BIG...and it only took 6hrs...

Only 6hrs can you please explain more about this

@uday it only took 6 hrs because the nozzle is 6mm in diameter. Its 45cm deep, 60cm wide, and 45cm high

Okay

7:53 PM

Can you show us your 3d printer pic

Rory - Sustainable Design Studio

Click to see attachment 🖼️

Rory - Sustainable Design Studio

Click to see attachment 🖼️

Wow that is amazing. Any info on the printer? What kind of extruder do you use? Do you use filament or directly plastic bits?

4:18 PM

That really is an awesome achievement

1

Nathan-PPLancaster

Hey! REALLY sorry we didn't reply to your message. We're trying to keep up with inquiries but stuff slips through the net now and then - definitely NOT a snub. If you send your request direct to me via DM here I'll get back to you for sure this time. Sorry again!

Ah that’s awesome to hear! I’ve done quite a bit since then, I’ll get some stuff together that I want to discuss and send it over in a bit, I’m really busy right now with work though.

1

Hey everyone!

2

3:11 PM

I´m an automation engineer, and I´ve been working on a idea based 3D printing system using robotics. I´m already in contact with a material engineer and a electrical designer, but could use help from someone with designing/mechanical background.

3:12 PM

And also financial ( germany) to help creating a business plan

Hey guys, we have recycled some PP face masks and turned them into 100% recycled material (pellets). Any advice on turning them into 3D printer filament? Really thankful if someone could give us a hand

Hey @danielleinen What type of machine would you be wanting to print with?

anybody going 100% 3D printing with a hopper/shredder/extruder system?

Im persoanlly just starting off with shredder and injection but im going to make an extruder eventually since i have a 3D printer

the dedicated filament only "lyman extruder" is ~400 USD if that helps

I'm trying to figure out how to make bio based filament using organic waste which could be deposited using a wasp like printer. Has anyone here worked with bio based filament ? (not bio plastics like pla, I'm referring to something that would decompose in your garden or your home composter, something like the 'beyond plastics' material )

That's an intresting idea!

9:34 PM

I know there are "Compressed Earth Blocks (CEBs)" and a more cement like "Rammed Earth", which uses dirt and can be reinforced with straw etc (i think), but that is sort of using dirt, not something that is more plastic-like

1

9:34 PM

The heating/pressure part would get odd but i bet there is a way we can pull it off

9:34 PM

maybe nozzle->heated roller / "iron-er"

Just throwing this open source VR glove out there! https://www.3dnatives.com/en/open-source-3d-printed-vr-gloves-for-only-22-240420215/

Open-source 3D printed VR gloves for only $22 - 3Dnatives

Lucas VRTech is a young YouTuber who made a pair of open-source 3D printed VR gloves for just $22. More than 200,000 people are following the project.

Yooo that's really cool!

1

7:25 PM

Table top filament extruder (edited)

Woah, do you have any videos of it in action?

Also did you make it yourself or buy it?

opabinia

Woah, do you have any videos of it in action?

I previously used Chinese pid controller but now I'm designing with Arduino it was in programming stage so very soon I will post with proper output

cool!

Eric Lotze

Also did you make it yourself or buy it?

I started this mark3d as a startup and somany iterations did to bring the machine in the form of kit.

Is it Open Source?

Yes I want to make it opensource

Is it one of those things where you kind of "built it" more than did some crazy CAD then build workflow? (i am terrible at cad, especially less intuitive stuff like FreeCAD (instead of autodesk inventor), so that is how i work if alone honestly, so i get that)

Eric Lotze

Is it one of those things where you kind of "built it" more than did some crazy CAD then build workflow? (i am terrible at cad, especially less intuitive stuff like FreeCAD (instead of autodesk inventor), so that is how i work if alone honestly, so i get that)

Since I don't have machinary all the parts are outsourced.I completely went up with fusion 360 and drawings.

10:18 AM

https://udayoletieee.wixsite.com/mark3d/post/how-practical-3d-printing

HOW PRACTICAL 3D PRINTING..?

Every one having an imaginary world in there mind to do like this and like that but coming to execution it will become a day dream. Now its not any more day dream 3d printer will address for this problem coming to my case it was proved. I give an example for it, yesterday I saw in news that few people came voluntarily to feed birds in local fo...

Does anyone have plans to sell 3d printer filament on the Bazar? I would happily pay ~30-35 USD/kg to make my 3d prints more sustainable

@pufffrosty working on it! we're starting with PLA, but would like to expand to other types as well (PET has proof of concept). I've already collected and shred PLA from five different labs on our university campus. everybody is interested in a circular solution

Hi, I'm a 3D printer user, always making some parts with Filament which PLA and TOUGH PLA. So, it remains some filament after prints. So, can I use this machine to get PLA and TOUGH PLA with recycling? If it's possible, how can I do it? For example, what temperature can I use? Thanks.

2:24 PM

with Extrusion machine

https://udayoletieee.wixsite.com/mark3d/post/how-to-upcycle-beer-bottle-with-3d-printing

How to upcycle beer bottle with 3d printing...

We saw daily so many free littered beer bottles out side near beaches, Beside Railway tracks and few public places too. Usually garbage collectors will collect and make some money with it but the sad part is only a few of the bottles will reach its birth place remaining will goes to landfills or Broken by throwing it. It hurts me a lot so I try ...

TEglen

@pufffrosty working on it! we're starting with PLA, but would like to expand to other types as well (PET has proof of concept). I've already collected and shred PLA from five different labs on our university campus. everybody is interested in a circular solution

This topic is what brought me here today. Thought 3d printing scrap would be low hanging fruit for recycling if you could actually get people to drop off the material. I'm new here and definitely not up to speed but hope to hear more from your results!

@Sean I set up a "Filament Reuse Network" at my University, and its had some takers so far. https://www.plasticasu.org/s/stories/filament-reuse-network-is-up-and-running

3

Does anyone have any experience printing with PETE?

ΣCaspernicus

Does anyone have any experience printing with PETE?

im guessing that you mean PET,yes pet can be printed but you need a few things for printing it (edited)

8:46 AM

1.a dryer/dehydrator,PET cant print if it has the any humidity

8:50 AM

2.lots of patience and a bit of time since PET is like ABS it needs a bit of testing and calibration to get it printing properly but once calibrated is quite good

8:51 AM

3.a filament/pellet extruder or any other way of converting the pellets/flakes into filament for your printer (edited)

8:51 AM

so all in all its a good material to print but will need a bit of time get printing properly

8:51 AM

@ΣCaspernicus

Is it a good place to ask about filament extruding machine from used pla? Looking to create a machine to recycle the leftover of my 3D printing place Have some thing like 10-20 kg a week

EldarPoli

Is it a good place to ask about filament extruding machine from used pla? Looking to create a machine to recycle the leftover of my 3D printing place Have some thing like 10-20 kg a week

a lyman extruder?

6:27 PM

or any one of the hundreds of extruders out there depending on what exactly you want

I need to have the option to create a 1.75 mm filament And something not too expansive

for eg a lyman extruder has an output of 5kg per hour but a slightly higher build cost meanwhile a more diy extruder while having a lower build cost will have a lower output somwhere around a kilo an hour

6:39 PM

so right now you could go with either

sponsoons

a lyman extruder?

But it looks like an option Is it possible to use the preciousplastic extruder?

EldarPoli

But it looks like an option Is it possible to use the preciousplastic extruder?

it would be possible but for the cost it is not effective

6:50 PM

since it costs 1500$ and can extrude 5kg of material per hour (edited)

6:52 PM

meanwhile most of the diy/3d printed extruders cost between 90$ and 450$

6:53 PM

and can extrude between 500g and 5kg of plastic per hour

6:53 PM

with the most common output being a kilo an hour

is the 5kg limitation just due to the max length extrusion rate? not the max volume extrusion rate? (edited)

so since you need ~20kg of filament a week by running a 150$ extruder for for 4 hours*5 days you can complete the same amount of filament in a lower cost

Falcon

is the 5kg limitation just due to the max length extrusion rate? not the max volume extrusion rate? (edited)

extrusion lenght?

like the capabilities of one extruder from the plastic properties and tolerances and such

6:57 PM

instead of motor power or something

6:58 PM

so a limitation of the process, not of the machine

not really it is entirely the limitation of the machine

7:01 PM

the process has no limitations,for eg the bigger commercial machines can even extrude anywhere between 50kg and 1 ton per hour (edited)

7:03 PM

so for eg if you were to get a more powerful motor/better gearing or a better extrusion screw you could extrude more plastic with the same machine

I guess, the faster you extrude, the power increases nonlinearly

not really in plastics most things are linear

7:06 PM

since things like the barrel length, heater temp,motor power,screw capacity etc all go into the equation

7:07 PM

so if you have a faster motor but not a good heater/screw you could have unchanged outputs

7:07 PM

but increased wear

sponsoons

so since you need ~20kg of filament a week by running a 150$ extruder for for 4 hours*5 days you can complete the same amount of filament in a lower cost

Yes make sanse

7:09 PM

what do you think about the filastruder kit for a first build?

EldarPoli

what do you think about the filastruder kit for a first build?

no idea i havent actually tried the filastruder,my experience is mainly with a no name chinese extruder and a bootstrapped diy extruder

sponsoons

no idea i havent actually tried the filastruder,my experience is mainly with a no name chinese extruder and a bootstrapped diy extruder

aa i see ok so i will try it looks very good to me thank you for the info will update about progress (if someone is intrested

)

I've had decent results with the Wellzoom B as an alternative to the Filastruder.

3:49 AM

https://www.amazon.com/Wellzoom-B2-Desktop-filament-extruder/dp/B01CNYCYAY

Amazon.com: Wellzoom B2 Desktop Filament extruder: Industrial & Sci...

Amazon.com: Wellzoom B2 Desktop Filament extruder: Industrial & Scientific

Hey there! I would like to know if all kind of plastic are useful to make 3D printer filament. Thanks!

DemianCABA

Hey there! I would like to know if all kind of plastic are useful to make 3D printer filament. Thanks!

while there's a wide variety of plastics that make good 3D printer filament, not all kinds of plastic are viable for 3D printing with.

3:52 AM

For example, some plastics like HDPE have high thermal expansion which makes them warp pretty badly when you print with them

L.P.M

For example, some plastics like HDPE have high thermal expansion which makes them warp pretty badly when you print with them

Thank you!

L.P.M

https://www.amazon.com/Wellzoom-B2-Desktop-filament-extruder/dp/B01CNYCYAY

The kit looks very expansive

And I ordered the filastruder kit So no way back haha Hope it will arrive soon to test it

1

sponsoons

meanwhile most of the diy/3d printed extruders cost between 90$ and 450$

May I ask which extruders are on your mind (edited)

the diy filament factory on instructables,the lyman extruder and a large number of unnamed/generic named extruders across the internet

Ced

May I ask which extruders are on your mind (edited)

also the host of lyman extruder remixes

EldarPoli

The kit looks very expansive

And I ordered the filastruder kit So no way back haha Hope it will arrive soon to test it

So interested, please keep us posted on the filastruder. We are looking at evaluating this machine from Toronto, Canada ... waiting for a response from their CEO https://redetec.com/

3D Printer Filament Recycling

3D Printer filament recycling systems allow you to recycle and create PLA and ABS filament for use with 3D Printing - Safely, Affordably, and Sustainably.

JuleAsterisk

So interested, please keep us posted on the filastruder. We are looking at evaluating this machine from Toronto, Canada ... waiting for a response from their CEO https://redetec.com/

I was looking to buy this system and it look very good But sadly they they jacked their price from 2k$ to 3.5k$ So it got too expansive and all other systems just dot look as good or very expansive 8k$+ So now trying to DIY the way Hope we did the right decision

2

I ordered from ReDeTech during their kickstarter and never got the unit. sooooo, I recommend not going with them.

10:49 PM

I haven't made one, but I've spoken to the Phd instructor at Michigan state who helped put this together https://reprap.org/wiki/Recyclebot. It seems like a great unit

TEglen

I ordered from ReDeTech during their kickstarter and never got the unit. sooooo, I recommend not going with them.

OMG! Thanks for that crucial bit of information .... how long ago was that? I guess I won't 'wait' for a reply any more ... I would love to set up an interview with someone who was involved in the 'Recyclebot' machine you link to! Here's our Youtube chanel with the interviews we have done so far for the Plastics Remanufacture Project (we are working on templates for rural / remote / Indigenous communities, and want to include 3D) : https://www.youtube.com/playlist?list=PL1lIvCv9n3r22Dq59b5DkdmayKypJ1APx (edited)

REAC Interviews

1

I would think that Josh, who runs the lab running the Recyclebot would be down for a conversation, just depends on his availability. You might look into his work and see if it matches what you're looking for @JuleAsterisk

TEglen

I would think that Josh, who runs the lab running the Recyclebot would be down for a conversation, just depends on his availability. You might look into his work and see if it matches what you're looking for @JuleAsterisk

Thanks, I just tweeted to him (it doesn't have an email address for him on the reprap website) ... hoping this works!

so much 'iffy' stuff out there ... that's why this channel is such a great resource! Check out the reviews for the 'Wellzoom B2 desktop filament extruder' https://www.amazon.com/Wellzoom-B2-Desktop-filament-extruder/dp/B01CNYCYAY#customerReviews

Amazon.com: Wellzoom B2 Desktop Filament extruder: Industrial & Sci...

Amazon.com: Wellzoom B2 Desktop Filament extruder: Industrial & Scientific

1

You guys are doing a very good Job, thank you and God bless you for that. Iam based in switzerland (solothurn) and have done some education in mechanic. I try to start my own business now and found you guys. My idea would be to repair mostly and also make some upgrades with traditional old technic-stuff. For software i will have a partner and hardware will be my part. I worked also as fitter for a grindingmashine-company, so o also know how to build a mashine. Essentially will be 3d printing for rare parts (mostly skin). I hope you can help me here a little

5:08 PM

Sorry if my english isnt perfect, mainly i speak swissgerman so i use to make it easy for myself with language

JuleAsterisk

Thanks, I just tweeted to him (it doesn't have an email address for him on the reprap website) ... hoping this works!

okay, keep me posted!

Greetings everyone! I am a beginner maker in Moscow, Russia who organises 3D modelling and printing workshops for kids out of recycled PET!

10:00 PM

10:01 PM

10:03 PM

If you are interested to know more - maybe about how to recycle PET bottles into filament, or organise classes for kids - don't hesitate to ask! Currently, I am working on making the body of the extruder out of recycled plastic. Some of the parts are already 3D printed - some out of PET bottles, but have proven to be quite brittle - so this design needs a lot of work still - also time-wise. I would be very happy to hear your feedback, ideas and send you more information if you are interested!

2

3

@preciousplastic3D this looks awesome! I've been told that PET to filament can be very challenging due to PET's material characteristics. Have you had to do anything special, or just find the right temps and speeds for spooling?

TEglen

@preciousplastic3D this looks awesome! I've been told that PET to filament can be very challenging due to PET's material characteristics. Have you had to do anything special, or just find the right temps and speeds for spooling?

Hey Tyler! There is a little hack: you need to cut the the bottle into tape before you extrude it into filament - the temperature is about 180-190 degrees. Sometimes it's challenging because the properties of the bottles are different due to pigment, additives, etc.

ohhhh, so you don't go from bottle-->shred -->extrusion-->print Do you go straight from bottle-->tape-->print?

TEglen

ohhhh, so you don't go from bottle-->shred -->extrusion-->print Do you go straight from bottle-->tape-->print?

Yes. It saves A LOT of time.

so then what controls the extrusion flow rate? I'm thinking it would be dependent on the size of tape cut, and its feed rate into the hotend?

However, it can also be challenging because some bottles are produced with ripples and patterns that have a practical application - so you can fold them. If you have a bottle like this, you need to straighten it out with a dryer.

TEglen

so then what controls the extrusion flow rate? I'm thinking it would be dependent on the size of tape cut, and its feed rate into the hotend?

Well, what controls the extrusion flow rate is how much time the sides of the tape need to melt to fold into filament. What you get out is a kind of tube, if you like, that you can print with. There is no feed as such - there is just a motor that pulls the filament onto a spool, as the tape is heated and folds into a tube. It's just a long, long pull via hotend - a bit of a different process that extrusion. (edited)

TEglen

so then what controls the extrusion flow rate? I'm thinking it would be dependent on the size of tape cut, and its feed rate into the hotend?

If you are interested, I can send you some videos and materials - it still needs a lot of work though. I would love to make it out of recycled plastic in its entirety - so I decided to write to the community, maybe we can join forces&create a machine which is excellent for classes for kids. The machine is portable - I travel with it, it fits into a sports bag. You can literally just plug it in class (or outside) and make a small batch of filament on the spot. Great for workshops! (edited)

2

1

@preciousplastic3D Thats fantastic work. well done. I'd love to see teh additional videos and materials. We're working on our extruder pro right now, which I doubt can handle the delicacy needed for PET respooling, so I'm thinking of making a recyclebot (posted above), but I'd love to see how yours works. I'm also a former middle school teacher, so I love that you're getting it into workshops/classrooms!

TEglen

@preciousplastic3D Thats fantastic work. well done. I'd love to see teh additional videos and materials. We're working on our extruder pro right now, which I doubt can handle the delicacy needed for PET respooling, so I'm thinking of making a recyclebot (posted above), but I'd love to see how yours works. I'm also a former middle school teacher, so I love that you're getting it into workshops/classrooms!

Thank you!! Your feedback means a lot to me, I am very thankful for your words!!

I will send you all of the information via pm

preciousplastic3D

Thank you!! Your feedback means a lot to me, I am very thankful for your words!!

I will send you all of the information via pm

I would love to see this too! Can you please post some videos here? Awesome work!

JuleAsterisk

I would love to see this too! Can you please post some videos here? Awesome work!

Thank you so much!!

Absolutely, I am on it!

preciousplastic3D

Greetings everyone! I am a beginner maker in Moscow, Russia who organises 3D modelling and printing workshops for kids out of recycled PET!

Sounds like a really cool project if you have some videos, instagram or youtube channel i would love to see your work.

preciousplastic3D

Thank you so much!!

Absolutely, I am on it!

Is it a custom extruder or bought one? If it's custom do you have plans to make it opensource?

0xjuca

Sounds like a really cool project if you have some videos, instagram or youtube channel i would love to see your work.

Hey, thank you for your feedback! I am making it right now. I have a problem that I want everything to be on the level, so I am taking my time with making videos - also I am not very confident on camera. I will try my best to finish everything up this week and maybe just send it to you guys for review&feedback? This would be very helpful

If you don't mind!

Steam

Is it a custom extruder or bought one? If it's custom do you have plans to make it opensource?

It's a self-made extruder, very simple - you could potentially build one yourself, but you would need to learn how to program on Arduino. I would like to make it open source so we can develop it together

1:31 PM

It needs extensive research, because for now the process is not simple. You need to prepare the bottles before cutting them into tape, understand the temperature nuances based on the bottle additives (it says PET on all of them, but they all melt differently - thank you, plastic recycling industry). It is a lot of work. I would be happy to make the workflow better together with you guys!

1

preciousplastic3D

If you are interested, I can send you some videos and materials - it still needs a lot of work though. I would love to make it out of recycled plastic in its entirety - so I decided to write to the community, maybe we can join forces&create a machine which is excellent for classes for kids. The machine is portable - I travel with it, it fits into a sports bag. You can literally just plug it in class (or outside) and make a small batch of filament on the spot. Great for workshops! (edited)

I think you are doing an awesome job, I would like to view also the video!!

Hey! We have been under the radar for a while, but things are getting better now. We've lauched a crowdfunding campaign on FundYou bit.ly/bloftdesignlab Check the video! Our rewards (the big ones) are available only in the Nordic countries, maybe Central Europe. The smaller items are available globally. Feel free to ask for other rewards as well. (edited)

7

2

1

Hi , who has here built the trash printer? https://www.trashprinter.org/

trashprinter_4iousl

Sample Page

3

Looks really cool! I have seen @Rory - Sustainable Design Studio built a similar project. A lot of artists are asking me at the moment if something like this is possible for theatre stage production - printing furniture or props out of recycled plastic.

7:11 PM

There is a great initiative in St.Petersburg, 99recycle - they recycle plastic into furniture with a robot 3d printer that they have built themselves. However, they present themselves as purely plastic recyclers - not ecology activists, which is their right, but I find it a bit weird to be honest.

7:12 PM

https://www.instagram.com/99recycle/?hl=en

Yeah 99 Recycle are pretty inspiring. Them & VanPlastik were my inspiration for designing a 3D printer.

2:48 PM

Lots of groups design and sell products, but non provide affordable access to a machine.

@alistar I built the trash printer, and my friends over at the Trash Hackers Collective (https://trashhackers.org/) are the only people I know that have replicated it so far. I just finally uploaded my how-to the Precious Plastic community how-to page, and that should be the most up-to-date documentation out there. The trashprinter site and hackaday site are both pretty out of date.

trashhacker

Mission

The biggest hurdle is the CNC gantry itself. I'm using an MPCNC LowRider2 gantry, which works pretty well, but isn't fully open source itself and leaves a lot to be desired. The trash printer extruder itself is cheap and easy to build, and works well enough to print large, strong things, like vases, cups, turbines, and brackets, very quickly (1-2 hours for a 12" vase) compared to typical 3D printers. I'd love to help get other people hacking on it, it's very useful as is, but could stand to be drastically improved by lots of people tinkering with it.

2

12:04 AM

Trash-printed mushroom lamp!

12:09 AM

12:10 AM

It’s by no means pretty, but here it a 100% recycled LDPE print we ran yesterday on our v1 Ender. We’re currently upgrading our extrusion and winding equipment which will help, however we can still do some tuning on the printer side.

that's pretty awesome, nice work! are you able to get the filament down to 1.75?

Dalamar

that's pretty awesome, nice work! are you able to get the filament down to 1.75?

Yep this is 1.75mm filament and a 0.4mm nozzle. This one was printed yesterday after some tuning. Still having issues with stringing and I’ll try to lose the brim next time.

1

Piers

Yep this is 1.75mm filament and a 0.4mm nozzle. This one was printed yesterday after some tuning. Still having issues with stringing and I’ll try to lose the brim next time.

If you plan on selling spools of this I'll definitely be your customer!

1

If any one needs to design 3D models or characters. Let me know

Hello everyone, I am in the beginning stages of getting a shredding, and 3D printing business going. As far as the 3D printed products go, they fall into two categories. Small nick nack like key chains or promotional trinkets, and larger items like figurines and official cosplay assessor's. I feel for the large pieces something with a large print he'd would be best. But I also know those don't do to well for nine details sometimes. I also know that since I primarily be using recycled plastic it needs to be one able to handle a good range of materials. I don't have the funds to purchase and have it fail often or need a lot of alterations to work properly. So I ask is there any printers suggestions or recommendations??

1

Would be awesome if such a machine was part of the Precious Plastic roadmap: https://www.youtube.com/watch?v=7jUVNTdU0XE

JRT3D

PetBot - Recycle Soda Bottles into 3D PET Filament

for those wondering how to strip out a bottle for feeding in the machine: https://www.youtube.com/watch?v=TRy2sD_k57g

TKOR

Make Soda Bottle String (Cool Survival Hack) | How To Make Rope Fro...

@Recycling chimp time to chat?

Yeah sure

6:11 PM

I will text u

https://youtu.be/87QdTLFB5AI

Mark3D Desktop Filament Extruder

Wild_Inventor

Hello everyone, I am in the beginning stages of getting a shredding, and 3D printing business going. As far as the 3D printed products go, they fall into two categories. Small nick nack like key chains or promotional trinkets, and larger items like figurines and official cosplay assessor's. I feel for the large pieces something with a large print he'd would be best. But I also know those don't do to well for nine details sometimes. I also know that since I primarily be using recycled plastic it needs to be one able to handle a good range of materials. I don't have the funds to purchase and have it fail often or need a lot of alterations to work properly. So I ask is there any printers suggestions or recommendations??

I suggest a Prusa Mini. It will just work. You won't be able to do large things, but it will make an excellent first printer. Maybe by the time you are ready for a large printer, the Prusa XL will have been released.

2

Green Ellipsis

I suggest a Prusa Mini. It will just work. You won't be able to do large things, but it will make an excellent first printer. Maybe by the time you are ready for a large printer, the Prusa XL will have been released.

Thank you for that recommendation. I'll look into it

I met a guy in Panama who makes a pellet extruder attachement for 3D printers, and we tested it out by shredding our own polystyrene, and it worked AWESOME for 3D printing! seems wayyyy easier than creating new filament and going straight from pellets to printing!

5:16 PM

https://youtu.be/iCuet5gdE4c

Digital Naturalism Laboratories

100% Recycled 3D Printing!

1

5:17 PM

They have a company called https://www.recycl3dprint.com/

The LILY Kit - Unlock‍ sustainable and cheap 3D printing, with one ...

The LILY Kit = The LILY pellet Extruder + Auto Pellet Dispenser. A universal DIY bolt-on conversion kit to unlock powerful pellet 3D printing in your favorite 3D printer.

5:17 PM

but it seems like something ripe for an open-source 3D printer pellet extruder!

Hi, I am having a problem with my 3d prints, can anyone help? Dm me or @ me please if you can (edited)

Hi all . Please tell me how to place your geolocation on the world map? We manufacture machines in Russia but sell them all over the world. But they decided to put a point on the map quite recently. Thanks .

https://youtu.be/IcmKFDxsUgA

How to Recycle Failed Prints into 3D printing filament | Make 3D pr...

2:08 PM

We made a tutorial on how to recycle failed prints. We treid to stuff in as much knowlage and experienced into this video as possible. A how-to is coming up on PP too in the coming days

Dalamar

that's pretty awesome, nice work! are you able to get the filament down to 1.75?

for us the trick was the drying process and a very uniform granulate size to get tight toleranzes. We used a Caliper to measure the diameter, now we use our own messeurement device based an a magnet and hallsensor to monitor filament diameter

Really excited to see how all this goes, because the "ultimate system" would be the existing open source ones, but with a sensor, like the one you are developing!, and a feedback loop (which you are also developing if i remember correctly) that works well enough anyone can get it started and produce high tolerance filament with little effort/large amounts of training. Also have some sort of Data Storage thing similar to Prusament for debugging in case you get poor tolerances all of a sudden

3:51 AM

Really exciting stuff to see, and i love how between Precious Plastic, and Tom Sanlander (i hope i spelled that right lol, i'll check) 's filament diameter sensor, and other Open Source Projects, the iteration/development is going by so fast / all working together I hope this will get better and better each year, and maybe in 5, 10 years we can have some really interesting full on Open Source Product Ecosystems and Business/Community Models going

3:51 AM

Granted estimating timescales is always a mess, but either way it will be a very interesting next few years

https://youtu.be/8VLllw8ZxLo

The JARVIS DRE | Precise and convenient filament diameter measurement

Eric Lotze

Really excited to see how all this goes, because the "ultimate system" would be the existing open source ones, but with a sensor, like the one you are developing!, and a feedback loop (which you are also developing if i remember correctly) that works well enough anyone can get it started and produce high tolerance filament with little effort/large amounts of training. Also have some sort of Data Storage thing similar to Prusament for debugging in case you get poor tolerances all of a sudden

Thanks Eric, our diameter sensor is no longer in development, we dropped it 2 days ago

Eric Lotze

Really excited to see how all this goes, because the "ultimate system" would be the existing open source ones, but with a sensor, like the one you are developing!, and a feedback loop (which you are also developing if i remember correctly) that works well enough anyone can get it started and produce high tolerance filament with little effort/large amounts of training. Also have some sort of Data Storage thing similar to Prusament for debugging in case you get poor tolerances all of a sudden

having data storage for graphs like prusa would be epic, unfortunately we cant yet afford the server costs to enable that for all users

I hope it won't take 5 10 years, for this to get going on scale, that would be kind of too late in my opinion

Just received a big batch of recycled PETG for making 3d printer filament, if you need some send me a pm PreciousPlastic

nice

@Marcel123095 how did they make recycled PETG?

@Uplifted I don't know what their production process is, but I know the source is PET bottles because they are very pure by nature.

Does anyone have any experience with sustainable resin for DLP printers? There’s seems to be a few options out there but not sure what is green-washed. Thanks!

Hello! Does anyone have recommendations for a 3D printer that can handle a large range of these recycled plastics? I run a club that is trying to turn recycled plastics into 3D printer filament, and need a decent printer to use the filament in.

1

@Dylan Evans I would advise to buy a Prusa Mk3s because it runs very reliable. We work with recyceld filament too, and obviously especially at the beginning it often had problems. Having a reliable printer is key, because otherwise you never know if its your filament or the printer that is messing up.

1

@Milan | QiTech Thats exactly what I was thinking! Thanks for the input! Also, just to double check the comments I read from you earlier, you discontinued your filament diameter sensor?

no haha with "we dropped it" i meant that we now have it on our website and sold the first 4 units and up to now they are running. You can check on our website all the specs or text me privately

Oh, that's much better news!

Milan | QiTech

no haha with "we dropped it" i meant that we now have it on our website and sold the first 4 units and up to now they are running. You can check on our website all the specs or text me privately

I was looking at the winder/sensor/airpath bundle and had a question. When extruding PET from recycled flake, what speeds would the cooling and winder be able to handle? I have an extruder that can pump out 10+kg/hour, but I haven't found a reliable way to get the tolerances dialed in just right, even with water cooling. So I'm considering reducing the output significantly. Would QiTech's Jarvis system be a viable option for this?

10+kg/h

moldyputty

I was looking at the winder/sensor/airpath bundle and had a question. When extruding PET from recycled flake, what speeds would the cooling and winder be able to handle? I have an extruder that can pump out 10+kg/hour, but I haven't found a reliable way to get the tolerances dialed in just right, even with water cooling. So I'm considering reducing the output significantly. Would QiTech's Jarvis system be a viable option for this?

We usually messaure speed in Meters per Minute, because the Weight always depends on the Plastic. The JARVIS Winder can spool at a Max speed of 15 Meters Per Minute, for more the Motors wont manage and the winding becomes ugly. If I push my Extruder e reach simular Speeds, and I Use two Airpaths after each other with at 75% capacity. To max out the speed, I made a nozzel with two outlets, and then have the two filament stings going over the same airpaths and then onto 2 Winders. I use the DRE (sensor)to tell me wich diameter I am on and then I fine tune the settings. While Extrusion the DRE will keep telling me in the app if everything is okay, but usually once the settings are dialed in, the diamter doesnt change much on its own. If it does, then there is something wrong with your extruder output or your granulate is wet or your granulate is not uniform

5:24 PM

So if your are willing to reduce your output a bit (15meters per minute is still Crazy Fast) the airpath - sensor- Winder combo will easily manage it. If you pklan to go fasster longterm, you can up the game with a second winder and a second airpath

5:26 PM

for smaller productions I would never advise to use water cooling, its a huge mess to keep clean and set up and if you are not working with proffessionel heated/cooled waterbaths it will just mess up your diameter and give you Head aches.

5:26 PM

https://youtu.be/6Ae6oDKhqiE

The JARVIS Airpath | Filament cooling unit

5:27 PM

we made a video about Aircooling VS Watercooling i think it would be usefull for you

is there any information or resources on FDM 3d printed injection molds?

FDM 3d printed injection molds What material are you thinking of? There is a How To on using resin. But it's meant only for prototyping. It only lasts for a few injections.

https://community.preciousplastic.com/how-to/make-a-3d-printed-injection-mould Something else to try is lost PLA aluminium casting. Bury a printed PLA mould in green sand... melt it away with molten aluminium. (That's theoretical. I can't vouch for the quality of such a mould.)

Frederik C (ZA)

FDM 3d printed injection molds What material are you thinking of? There is a How To on using resin. But it's meant only for prototyping. It only lasts for a few injections.

it would have to be nylon

5:48 AM

that the only easily printable fdm plastic that can take up any temps

Frederik C (ZA)

https://community.preciousplastic.com/how-to/make-a-3d-printed-injection-mould Something else to try is lost PLA aluminium casting. Bury a printed PLA mould in green sand... melt it away with molten aluminium. (That's theoretical. I can't vouch for the quality of such a mould.)

i dont think it would work at all,pla doesnt pla too nice with spontaneously being melted/burnt out

5:51 AM

plus its a sand mold which means unless it has some good binder or is made mostly out of hardened core sand it wouldn't survive the pour

5:52 AM

however lost pla with investment/plaster is something that should work

5:54 AM

and theres a lot of videos and resources on doing that

5:56 AM

however for a mold of any decent size investment casting gets a bit tricky since most molds require centrifugal investment castings like jewelry but centrifugally casting anything big get very dangerous very fast especially on homemade or non-commercial machines

6:01 AM

the best quality I've seen from non centrifugal investment casting at home would still require a bit of machinign or at the very least finishing/polishing/sanding with a dremel/die grinder or sand paper

6:03 AM

the main problem ive noticed with a lot of cast molds is that the parting line or the surface where the two molds halves mate/join is often uneven or warped meaning it would require being somehow made flat so that it could be mate properly

6:04 AM

something id really like to see is injection molds being cast out of cement in FDM 3d printed molds for the cement

i think this should work as cement can maintain good dimensional accuracy and is fairly consistent in all its properties, cement also wouldn't have any problems with the temperature plastic is injected at, making the 3d printed molds for casting cement should be very simple if you use one of the many mold generators available for free

https://youtu.be/DyFW7oDqhjU

I replaced my 6w ac geared motor with 250w dc geared motor for smoo...

https://youtu.be/BDtFyVzkLOY

I replaced the 6w ac geared motor with 250w dc geared motor for smo...

for those wondering how to make their own PETG filament extruder from cheaply available parts here is part 3 of a detailed DIY guide: https://www.youtube.com/watch?v=6FwAsBt3AVk

mr3dprint

#3 Extruder and nozzle -Details of free filament production from re...

1

the best quality I've seen from non centrifugal investment casting at home would still require a bit of machinign or at the very least finishing/polishing/sanding with a dremel/die grinder or sand paper

Yes, no doubt. I guess for those with easy access to reasonably priced (or DIY) milling, the principle of least effort will win every time. It also seems metal printers are too expensive for most people to even contemplate.

Frederik C (ZA)

the best quality I've seen from non centrifugal investment casting at home would still require a bit of machinign or at the very least finishing/polishing/sanding with a dremel/die grinder or sand paper

Yes, no doubt. I guess for those with easy access to reasonably priced (or DIY) milling, the principle of least effort will win every time. It also seems metal printers are too expensive for most people to even contemplate.

It also seems metal printers are too expensive for most people to even contemplate.

6:52 PM

yup,they are way too expensive,and the thing is even all of their alternatives are only a but less expensive

6:53 PM

which means unless you have some very unique geometry,its cheaper and easier to get it milled/machined

6:55 PM

like every way of 3d printed metal whether it is metal powder and inkjet, metal powder in a binder which needs to be burnt out(this is for both sla/dlp and fdm) and another ways of 3d printing metal that don't entail casting are very expensive in one way or another either in terms of machine cost or material cost

6:58 PM

till now the simplest and cheapest way of making injection molds at home ive seen or heard of is making a 3d printed or plaster cast pattern of the mold and then sand cast it with aluminum before finishing and polishing the mold with sand paper and/or a Dremel (edited)

The first few times, it might be quite "satisfying" to hand-polish the mould to a nice gloss. But the novelty will wear off.

that is there

6:10 PM

cant wait for covid restrictions to be gone so i can go back to tinkering with 3d printers

6:11 PM

i really want to try out cement as a material for an injection mold

interesting..what do you think would be the benefits of using cement over conventional materials like plaster of paris?

Ziad

interesting..what do you think would be the benefits of using cement over conventional materials like plaster of paris?

plaster is a bit too soft

8:23 AM

depending on what type you get it differs,but generally anything short of white cement/dental plaster crumbles even when you just press it with your hand

8:23 AM

the plaster being soft also means that theres a high chance of parts of the mold breaking or sticking to the plastic

8:24 AM

which makes it a problem to work with

8:31 AM

meanwhile cement is cheaper and stronger than plaster, more easily available and can be worked with the same way as plaster which means that just by using cement instead of plaster you can get a lot more advantages without losing anything

8:32 AM

and if very high temp applications are required you can always use refractory/high alumina cement or refractory mortar instead of normal cement

8:33 AM

something id like to try when i have access to 3dprinters again is making a FDM printed mold and casting china clay or ceramic slip in it and then baking it

8:34 AM

if it works ill have a cheap and easy way of making high end parts using low end equipment

8:35 AM

another thing id like to try is using refractory cement to cast molds that can then be used to cast metal

8:36 AM

if that works ill be able to do die casting at home at a very low price

8:36 AM

since for both injection molding and die casting the main cost comes from the mold

@sponsoons Thanks for the detailed response and I wish you good luck in all your future attempts. I'd be interested in following your progress though so may be a YT channel would help

Ziad

@sponsoons Thanks for the detailed response and I wish you good luck in all your future attempts. I'd be interested in following your progress though so may be a YT channel would help

thanks, I'm hoping to do a YouTube channel or some other way of documenting it but at least for now it wont get done since i have a lot of exams and work stuff going on, so yes once covid restrictions ease and I can use the 3d printers i will definitely post updates at least on this server if not in a coherent log

7:51 PM

i have a lot of ideas which i feel would work and things i want to try out but cant due to covid

7:51 PM

so i hope in the next few years ill be able to

@Ziad @sponsoons One of the reasons ordinary plaster is not used for metal casting is that once it is dry, it crumbles back to dust. You have to drive off all of the moisture from any moulds before casting metal into them as any remaining moisture will turn instantaneously to steam causing at the very least the mould to crack and break, or quite possibly a very very nasty maybe even fatal accident . A very small amount of molten aluminium splashed onto your skin (think size of a finger-nail amount) could be enough to send you into shock. At around 800c it will give you a serious, scarred-for-life, life threatening burn. Sorry for the stark reminder but make sure you take safety seriously if you are going to experiment with casting any aluminium. I imagine cement would not be suitable for casting metal, investment is used because it remains in one piece after the moisture has been driven off (edited)

BillHall

@Ziad @sponsoons One of the reasons ordinary plaster is not used for metal casting is that once it is dry, it crumbles back to dust. You have to drive off all of the moisture from any moulds before casting metal into them as any remaining moisture will turn instantaneously to steam causing at the very least the mould to crack and break, or quite possibly a very very nasty maybe even fatal accident . A very small amount of molten aluminium splashed onto your skin (think size of a finger-nail amount) could be enough to send you into shock. At around 800c it will give you a serious, scarred-for-life, life threatening burn. Sorry for the stark reminder but make sure you take safety seriously if you are going to experiment with casting any aluminium. I imagine cement would not be suitable for casting metal, investment is used because it remains in one piece after the moisture has been driven off (edited)

Hi,thank you for the reminder,Im sure it will be helpful to those planning on trying this

7:43 AM

Just a few things, I am not planning on using normal cement for metal casting, I'm planning on using it for making injection molds for plastic which is a low temp application, For casting metal I'm planning on using refractory cement/mortar which can resist high temps and is also hard enough

I do know that you should pre-dry the plaster mold to prevent steam accidents and also pre-heat the mold to prevent crack,the comment about using normal plaster for metal casting stems from the large amount of people online who've used plaster instead of investment for lost pla casting

Hello everyone, I have a extrusion machine and I would like to create 3D printing fialment. After some research, it seems that PP filament is a better way to go compared to PE (better adhesion). I am thinking about getting the Jarvis Airpath system (https://www.qitech.de/en/ind/ind-products/jarvis-airpath) . Does anyone ever have used it ? Also, I am wondering about the effect of impurities left after washing for filament production: does it have a big effect on the results?

JARVIS Airpath

Cooling unit for optimal temperature regulation of the filament. The airstream is adjustable and the fans are powerful and height-adjustable. Therefore, it is compatible with almost any 3D printing extruder setup.

sponsoons

I do know that you should pre-dry the plaster mold to prevent steam accidents and also pre-heat the mold to prevent crack,the comment about using normal plaster for metal casting stems from the large amount of people online who've used plaster instead of investment for lost pla casting

Excellent! Just trying to look out for you and anyone who might be thinking along these lines. I did come to the conversation rather late as I've only just joined, good luck with it sponsoons, I hope to learn from your experiments

Hi folks! I'm somewhat new on the forum and just started a project in my local community to use recycled plastic and turn it into filament for the many 3D printers at our community center. Do you have any tips for how to pull this off and make sure the filament is as stable as possible?

the latest video in an ongoing series showing how to DIY a machine that recycles trash bottles into printer filament: https://www.youtube.com/watch?v=THmGKBL4k-4 (edited)

mr3dprint

#5 Gears and traction mechanism - Details of free filament product...

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Ziad

the latest video in an ongoing series showing how to DIY a machine that recycles trash bottles into printer filament: https://www.youtube.com/watch?v=THmGKBL4k-4 (edited)

Thanks!

https://www.youtube.com/watch?v=yJZokKKHpDA