Open Source Ecology - shredder-work

ALRIGHTY

8:04 PM

https://wiki.opensourceecology.org/wiki/Open_Source_Shredder

Here a short intro into shredder electronics : https://www.youtube.com/watch?v=CxheAdqIdk0 blue prints and firmware (https://git.osr-plastic.org/osr-plastic/pp-next/src/branch/master/machines/shredder/asterix/firmware_morren) will be available in the wiki sometime in September - it got a little messy supporting near 5 different variations

(edited)

Plastic Hub

26 June 2021

just a question in general - what's best to publish Post-Precious-Plastic machine docs on OSE ? There is no problem to write another adapter for deploying on OSE (API) - just syncing might be a problem - unless I can lock the pages somehow .. otherwise I will just link to the new wiki ...

hi, is this shredder for 3D printing from trash plastic?

4:27 PM

1

not really, depends on the fill rate; as far I heard, objects with up to 30% fill rate and a wall thickness up to 2mm is ok - depends on the motor option and version. For solids, we have 'Obelix', https://www.instagram.com/p/CMCXjePnTV1/ shreds up to 20mm thick & nasty stuff - depends also on the motor option (up to 7kW) (edited)

7:38 PM

but unfortunately it's pricey; but comes with auto-plunger as well

@Paul Pham - btw. there is no real good outcome printing recycled plastic; PET is still a thing (not easy); HDPE and others come with quite some problems - basically leaving you with 'trash'

7:55 PM

great channel :https://www.instagram.com/3dprintedarchitecture/

1

@-- osr-support -- do you mean the central premise of our incentivized challenge "Clean up Plastic Waste, Print a Home" is flawed?

good question; I am generally pessimistic about having 'plastic and sustainable' in the same sentence - and honestly, I am sceptic even about living in concrete - can't imagine even to leave my dog one night covered by petro chemstry waste

1

https://www.youtube.com/user/metzindustries/videos

Precious Plastic Philippines

Stuff from the mad scientist workshop

-- osr-support --

not really, depends on the fill rate; as far I heard, objects with up to 30% fill rate and a wall thickness up to 2mm is ok - depends on the motor option and version. For solids, we have 'Obelix', https://www.instagram.com/p/CMCXjePnTV1/ shreds up to 20mm thick & nasty stuff - depends also on the motor option (up to 7kW) (edited)

You appear to mean shredding previously 3D printed objects, not just melting down / shredding existing plastic trash, like 2 liter coke bottles and such :/

Possibly, yes. Shredding at smaller scale is incredible difficult when you want a good output, especially 2L PET Bottles - which need a grinder and quite some sophisticated apparatus to print - currently in an unresolved state btw, OS wise (shredding and grinding is at least solved). At the moment I know only of shred->grind->print - with not really satisfying results .. We pick up PET print again in Dec/Jan. for a larger printer setup but still - I don't think it's gonna be better than a one-off but at least some better data

2:19 AM

This works ok : https://mahor.xyz/ in small but I can't say it's scalable, PET is really tricky (temperature/flake size=0.5mm); it's hard to maintain 2mm+ diameter prints.

admin

mahor·xyz

· Industrial Additive Manufacturing ·

2:24 AM

Here some more past efforts and links on PET : https://git.osr-plastic.org/osr-plastic/pp-next/src/branch/master/projects/noah. Twin-Extruders are avaiable on RoboDig as well - more likely up for the job - printing PET direct. For that I have to wait we can have some data from a ABB print robot setup; I hope in March or so ... the base is done so far https://www.instagram.com/p/CI_G1jdndoy/

No idea what they gonna do with it but 6x6 cm is a good start

https://www.youtube.com/watch?v=EFgoJiSLkrQ Lydia-v4, 380V, 150 RPM - the mould is about 50 Kg

hooked up on a 7kW generator - shredding wise - it's a huge lap as well

Plastic Hub

Lydia-v4 Beams - 6x6cm

3:26 AM

looks like we need more pre-heating as well, at least for the beginning of the mould - about 1 m or so

3:28 AM

Google btw. chose that still picture (2 secs) automatically for the preview, interesting ... (edited)

@-- osr-support -- has reached level 9. GG!

Oké so I have been working on a super sized pp shredder

7:26 AM

And I'd just thought I'd post some pictures here

7:26 AM

Or a video of its first movement

7:27 AM

Taire

Or a video of its first movement

so, it blew the fuse ? I like the chain tho, removes a bit of headache, somehow

8:50 PM

last not but least, no matter how often I turned this around, this design is a nightmare ...

Anne vs the Gang

so, it blew the fuse ? I like the chain tho, removes a bit of headache, somehow

How you mean blew a fuse

7.5 kW you said ? was just curious how it turned out for'ya

Oh

8:55 PM

Wait haven't posted the vids here

8:55 PM

Moment

8:56 PM

It's done just needs a coat of paint and a safety cage

it's saturday baby, don't bother

https://www.youtube.com/watch?v=_Tu-qDHSSZo

WeAreDeLaSoul

De La Soul - A Roller Skating Jam Named "Saturdays" (Official Music...

Oh I got em. On my phone

8:57 PM

The vid in which it stopped the motor ran out of power

8:57 PM

8:58 PM

Also. Cus it was running slow

@Taire has reached level 2. GG!

And the vfd kicked it of since it stalled

nice, that was one of the better ones ? siemens or so, no ?

Ye

9:00 PM

Also does auto reverse

9:01 PM

And the one with the big black hose it at nominal speed

9:01 PM

I can go overdrive but that's kinda bad for the motor

9:02 PM

All in all it tanks the 7.5kw @2300 ish nm like a champ

yep, lesson learned ! gonna try next time we have annealed, ... blades here, soonish - this here drove me quite a bit back after all, no matter how 'hard' I tried

Nah it's just a feature of the plasmacut

9:07 PM

Only thing I did is debur

9:08 PM

Or just let it debur itself rly

9:08 PM

Turned it on some crunching and no more burs

mh, let's see, got the same with hardox (stupid expensive) ... here the next shot, from Ali, .../-|

9:10 PM

geometry makes sense too tho

This just good ol mild steel

9:11 PM

Hardox was like another 2.5k

9:11 PM

And thus far its holding up fine just fine

yep, er.. - nothing i want to sell ...

I mean

9:12 PM

The steel for the box was 2.8k as is

9:12 PM

With hardox that would be almost a boubleing

9:13 PM

And school. Just said we will order a full new set of knives by the time they worn out

9:13 PM

Or maybe sharpen em

ye, not too bad, for NL, and nowadays ... okeey, let's see how Chinese's 'steel' does

9:15 PM

funny somehow, for being in 2022, us - re-copying the copy and still don't get it ... g

Xd

@zelbot - how's it going - still waiting since years for your contribs ... December, that's usually the time to clean up the library didn't check on the sad pp main server since long (

), possibly i missed something. let me know what to add, contribs, etc... are down since you're around

6:43 PM

if someone wants to optimize this one, ... https://osr-plastic.org/machines/shredder_v31-light.html

OSR - Shredder - v3.1 Light

Overview Build Resources Media Hand cranked shredder Features / Details Based on Precious Plastic v2.1 shredder, using 33% smaller cutting diameter T...

Anne vs the Gang

@zelbot - how's it going - still waiting since years for your contribs ... December, that's usually the time to clean up the library didn't check on the sad pp main server since long (

), possibly i missed something. let me know what to add, contribs, etc... are down since you're around

never mind, just checked the data - it ain't looking good for anyone, except again the privileged profiteering from it, v4 ma* - from young mothers, plenty of families put at risks, and beyond .. young people's life, derailed for a few bugs and some 90sec IG bs sh* show - knowingly. thanks btw. - the worst extruder we've ever seen

https://wikifab.org/wiki/PP_Extruder_Pro

PP Extruder Pro

This tutorial documents the build process for the Precious Plastic Extruder Pro as supplied by Citizen Scientific Workshop out of Idaho, United States...

just for ref, it's not that hard, 0.1mm tolerance, acceptable for most cases - expectations are high, for everyone

knowledge base (alpha) - updated : https://kb.osr-plastic.org/academy/build/shredder/ - @zelbot - still waiting for your first file ever

Basic Shredder

Video Chapters 00:07 Introduction 00:46 Shredding box 04:18 Power supply 06:35 Framework 08:07 Hopper 09:31 How it works Build a Shredder Machine What is this machine? The shredder allows you to shred plastic into small flakes - you can easily wash and store shredded plastic and transport it to other workspaces to make into beautiful, valuable p...

@katharinaelleke most of the trouble seems to stem from Mattia's, Joseph's & v4 mafias hate, greed, ... and desperate attempts to find recognition, thus ending up in hopeless stunts of self-important self-centered, and self-indulging evilness. Otherwise, things would certainly be different. Still amazed you people try the same bs game, after so many years, and decent folks telling you so - much at the expense of others. Only recommendation left we have is : get a life, perhaps you may start respecting others. Love and rewards come down the road

All those shameless lies & tricks just did hurt everyone, dragging it, you & everyone down and behind.

5:32 PM

@zelbot - still can´t believe that a George Carlin joke destroyed so many relations and lifes. I am looking at 12/7, for the next 10 years, after having already 5 years served. Quite a shame and waste. I hope you´re aware, there are people suiciding for much less.

5:34 PM

Anyway, after watching you, raping and plundering an OS project, it´s people, and precious recourses, count on me - to be after your ass - you just killed too many things and folks.

Alrighty, just to keep this server alive, at least for me

In case anyone is bored, like me, there's still plenty on the table for #shredder-work : adopting 'obelix' to imperial. the design has proven solid and outperforms so far all the options I know of (https://www.3devo.com/gp20-plastic-shredder for 7-10k ). There's also plenty of code to run it as vending machine (electric plunger, size, performance, etc.. is just perfect. it attracted so far bigger names in this very niche ... dl: http://files.osr-plastic.org/files/osr-machines/shredder/obelix/ | library: https://forum.osr-plastic.org/t/dual-axis-shredder-obelix/10171 (edited)

GP20 Plastic Shredder Hybrid | 3devo

Discover the GP20 Shredder Hybrid: an intelligent, modular plastic shredder with customizable material settings. A powerful and precise shredder.

8:06 PM

Just a small problem about however: sourcing proper blades, there are options on Alibaba, indestructible & cheap. the chamber & assembly can be a bit demanding, but still ...

Anne vs. the Mafia

Just a small problem about however: sourcing proper blades, there are options on Alibaba, indestructible & cheap. the chamber & assembly can be a bit demanding, but still ...

Would the blades be something that could be casted or CNC milled using OSE's machining tools?

not really, as far I know, those blades need proper heat treatment, ... can't tell how they really did it but they have to be precision grinded as well, here some footage: http://files.osr-plastic.org/files/osr-machines/shredder/obelix-300-m/media/tests/ig-index.mp4

8:12 PM

milling, laser, etc... leaves you with too much play tho, it's a matter of 0.05mm

What would it take to build a proper heat treatment oven?

Anne vs. the Mafia

milling, laser, etc... leaves you with too much play tho, it's a matter of 0.05mm

Could it be die casted?

sure, that could do, if you know what you're doing, and have the time. Anyway, the guys on Ali are flexible and do this for dirt ... as far I recon, it's pre-cut on the mill, then hardening, then surface grinder casted: no way ! ends up too bridle

Anne vs. the Mafia

sure, that could do, if you know what you're doing, and have the time. Anyway, the guys on Ali are flexible and do this for dirt ... as far I recon, it's pre-cut on the mill, then hardening, then surface grinder casted: no way ! ends up too bridle

What if it's precipitation hardened?

no idea, not an expert, i am just blowing stuff up

8:17 PM

could do, sure

8:18 PM

a set on Ali is around 500 - 1000 $, nothing compared to doing this in the west, from scratch

8:19 PM

https://www.alibaba.com/product-detail/Double-Shaft-Shredder-Machine-Blades-And_1600219687322.html?spm=a2700.details.0.0.32db26a0Udbpei

Double Shaft Shredder Machine Blades And Knives For Plastic - Buy D...

Double Shaft Shredder Machine Blades And Knives For Plastic - Buy Double Shaft Shredder Blade,Shredder Machine Blades,Blades And Knives For Plasticves Product on Alibaba.com

But isn't building it ourselves the OSE/maker way?

8:22 PM

Some theory on precipitation hardening, for anyone interested

But isn't building it ourselves, yeah - tried that, at the end, it turned out suicidal, especially shredders, beyond 300kg - just doesn't make sense, not even for the purchaser. perhaps one of the reasons metalwork is a dying trade tho ...

@Anne vs. the Mafia has reached level 3. GG!

What kind of plastics require a 300kg shredder?

basic stuff (see test footage), then you might want to crush AL and other things, food, bones, ... however, 'Maker' wise for instance, you'd need serious equipment to get this really right (200-300k in machines alone)

8:32 PM

3devo : 7-10k (toy) obelix : 5k Ali: 6k = best option

8:34 PM

300kg : 4kw motor = 60kg, chamber = 60 - 80 kg, framework & stuff, another 80 - that's the minimum you want, just to justify the work and $$ put in there

8:34 PM

okeey, my second wife is calling

bye

well, if it's maker & fun stuff, just to complete it, this here turned out so far the best entry option cost near nothing, runs effortless, with sticks, or bike, flywheel, nice chips, 100 trees saved, no kids harmed :)) https://forum.osr-plastic.org/t/osr-shredder-v3-1-light/10166

and here in perspective : https://www.mdpi.com/2073-4360/15/19/3881

Advancing Plastic Recycling: Challenges and Opportunities in the In...

The concept of the circular economy has emerged as a promising solution to address the mounting concerns surrounding plastic waste and the urgent need for sustainable resource management. While conventional centralized recycling remains a common practice for plastic waste, centralized facilities may prove inadequate in handling the ever-increasi...

Anne vs. the Mafia

well, if it's maker & fun stuff, just to complete it, this here turned out so far the best entry option cost near nothing, runs effortless, with sticks, or bike, flywheel, nice chips, 100 trees saved, no kids harmed :)) https://forum.osr-plastic.org/t/osr-shredder-v3-1-light/10166

Thanks for sharing. Where in the source files would I find the bill of materials and assembly instructions if one were to build this?

303adastra

Thanks for sharing. Where in the source files would I find the bill of materials and assembly instructions if one were to build this?

it's still in metric only, for some reasons

you'd typically hand this over to a laser cutting service, http://files.osr-plastic.org/files/osr-machines/shredder/components/shredder_v31-light/laser/en/ there's no BOM either but any guy interested in metalwork can do this with hands cuffed and eyes closed, ask your local DIY groover, fun stuff

9:43 PM

and here a bit guidance for imperial conversions : https://forum.osr-plastic.org/t/shredder-converted-to-imperial-system-inches/6483

9:45 PM

as for assembly instructions, yeah - still trying to figure a way to extract drawings on the fly via Solidworks API (composer) ... long way to go, even for the industry tho ... (edited)

btw. after all the pain I've seen with that stuff, shredding should be avoided all together ... what's coming after is hard enough

9:58 PM

here a 3D printer : https://www.instagram.com/p/CvNOfKhotvS

engineerplace

In 2014 @daniel_de_bruin built a gravity powered 3D printer!

Follow @engineerplace for more! Via: @daniel_de_bruin #technology #innovation #fabricate #sciences #innovations #mechanicwork #inventions #mechaniclife #instatech #futuretech #techlife #innovators #engineeringtech #3dprinting #danieldebruin #3dprint

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I don't know if I'll get around to shredding plastic for at least another year; currently have my hands full just assembling a Recreator3D for converting PET bottles into 3D printer filament.

11:07 PM

I would like to build something like a wood chipper though, because I really need a better mulcher for mulching invasive weeds from my backyard

@303adastra has reached level 6. GG!

I might take a crack at building the Precious Plastics shredder at some point, which was featured on CNC kitchen https://www.cnckitchen.com/blog/87dmuenxzk111r2reov2wpt2ybojdv

Building a Hand Cranked Shredder for Recycling Plastics — CNC Kitch...

Almost one and a half years ago I released my most popular video to date in which I recycled failed 3D prints into new filament using the Filastruder. One of the steps in this process is chopping down the material that you want to use. I tried a blender and a modified paper shredder in the past, whi

303adastra

I might take a crack at building the Precious Plastics shredder at some point, which was featured on CNC kitchen https://www.cnckitchen.com/blog/87dmuenxzk111r2reov2wpt2ybojdv

right, this one can be very disappointing, and demanding

, hence the 'osr-mini' - here's a imperial version of it. reducing cutting diameter by 15-20%, and 5 blades less makes it a bit more pleasant - http://files.osr-plastic.org/files/osr-machines/shredder/pp-v21-imperial/

11:15 PM

I've seen folks powering it with a mulcher as well

11:17 PM

searching GoogleMaps for plastic suppliers however might save some pain & money tho ....

303adastra

I might take a crack at building the Precious Plastics shredder at some point, which was featured on CNC kitchen https://www.cnckitchen.com/blog/87dmuenxzk111r2reov2wpt2ybojdv

After all, I wonder whether humanity can still afford entirely pointless/fruitless and resource eating activities like this

Vanplestik uses flakes directly : https://vanplestik.nl, And here a smaller print head : https://mahor.xyz/

Anne vs. the Mafia

After all, I wonder whether humanity can still afford entirely pointless/fruitless and resource eating activities like this

Vanplestik uses flakes directly : https://vanplestik.nl, And here a smaller print head : https://mahor.xyz/

After all, I wonder whether humanity can still afford entirely pointless/fruitless and resource eating activities like this

It's called early retirement.

Vanplestik uses flakes directly : https://vanplestik.nl, And here a smaller print head : https://mahor.xyz/

That's a decent looking benchy

admin

mahor·xyz

· Imagine Additive Manufacturing ·

That's a decent looking benchy, yep - print quality depends heavily on a stable env. temperature, and same input ... Turning bottles, ... into baskets could be fun

https://www.instagram.com/p/Bn-kmEqilhW/ (edited)

francesco__perego

@wemake.cc #Knitting #weaving #3D #roboticfashion #digitalfabrication #roboticmanufacturing #Digitalcrafting #leather #chord

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132

1

@Anne vs. the Mafia has reached level 4. GG!

https://www.instagram.com/p/CyilAkzpQQu/

303adastra

After all, I wonder whether humanity can still afford entirely pointless/fruitless and resource eating activities like this

It's called early retirement.

Vanplestik uses flakes directly : https://vanplestik.nl, And here a smaller print head : https://mahor.xyz/

That's a decent looking benchy

Here a few more convincing ideas that doesn't involve a shredda, as so often, it's best to build the process around the 'product'

https://www.instagram.com/p/CmxR_7Brdlx/ https://www.instagram.com/p/CmSFmsVBddv/ https://www.instagram.com/p/CleYyfQIL1Z/

plasticbeachparty

Rectangle Lamp designed and made by Product designer Paola Zanchetta while in residency with recycled PET sheets. @paotzm #plastic #recycled #productdesign

aoracreo

Last Market for the year @esplanademarket And what a year it has been! This year has been super important for me because I let go of things that were weighing me down heavily, and I found again the energy and power that has been there all along but not being used because of old and useless habits. Thank you everyone for your support and thank ...

weezandmerl

MYCELIUM - this marbling style is inspired by mycelium, which form mycorrhizal networks underground. It's sometimes called 'nature's internet' because of the way the mycelium connect plants, transferring water, nutrients and information. It's so fascinating! The names of the mushrooms that inspired the colours are fun too: Wrinkled Peach, Turqu...

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247

5:59 PM

... just in case you're still in, for killing time ... how's OSHW going ? (edited)