Plastic Shredder using Kitchen Blender
Here we show a process to turn scrap plastics into granules usable with a Granule Extruder.
Flattening the parts
First step is to make these parts flat. As they're thermoplastic (else you wouldn't be able to print with them later), you can melt them. And right, the easiest way is to melt them in an oven:
|Putting failed prints onto baking paper and applying some heat (220 °C for PLA) ...||... turns them into nice flat pieces.|
These flat pieces are more easily to break, so you can put them into a blender to make granules of them.
As you likely have a printer, you can print your own sieve! It's said that parts should have a maximum size of 5 mm.
Procedures achieving a similar goal and, of course, extruders which can turn these granules back into filament, can be found in Category:Recycling.