PET

10:43 AM

90°C-120°C is the temperature range you would want to use in an oven for PET dehydration for a few hours, before actually melting it

Ok, do you recycle PET?

it also greatly depends on the technique used, damn plastic are complicated :) injection moulding would actually be 90°C-120°C once the dehydration process is done (industrially speaking) Extrusion-blowing would be 230-270°C

10:45 AM

yeah it's one of the first polymers i tried to work with (oven+compression)

I like to work with PET, but my understanding was that it is very important to have a very stable temperature control, which is difficult with the Precious Plastic Machines, but possible with 3D-Priting, because you have just this little chamber, which is better to control. Is this correct?

i think the time duration at which the PET is at high temperature is what makes the difference; in a 3D printer, the temperature will increase and decrease very rapidly because the diameter of the filament is super small

10:52 AM

and therefore prevents some form of thermal-degradation, which would occur more easily in slower processes

So what do you think is the better option?: Option1: Shred it -> Extrude it into 3D-Printing-Filament -> 3D Print Option2: Shred it -> Pulverize it -> "Powder"- 3D-Printer

hmmm no idea how the process would work with "powder"; all i can imagine is the process of extruding it into filament might be the hardest part of the process you describe