Comments on RepRap: Builders: Cheap capa in the USA

biodegradable plastic would be great to get into. ...

2008-05-19T01:28:00.000-07:00

biodegradable plastic would be great to get into. Polyhydroxyalkanoates or PHAs might have some disadvantages in an extruder, but I might look into that later. I might contact Metabolix or one of the other companies and see if they have anything that would work well for this type of thing.
If you're interested in this, you might want to start a topic on the forum. http://forums.reprap.org/

~Dylan

is there any examples of peope reprapping with bio...

2008-05-18T23:01:00.000-07:00

is there any examples of peope reprapping with biodegrable plastics?

I am looking at a few different options for that. ...

2008-05-17T08:45:00.000-07:00

I am looking at a few different options for that. Here is one idea that I had that Adrian apparently had too.
http://reprap.org/bin/view/Main/GranuleExtruder
That's an extruder head made fore granules. I might do something like that or make a "recycle" machine to take granules or printed parts that are no good and extrude them into filament. It'll probably be similar to this design. That way we can use any plastic like cut up milk cartons and shopping bags for HDPE also.
I'll probably finish my cartesion system before I start any of this though.

Good find! Do you have possibility to have the 3mm...

2008-05-17T05:04:00.000-07:00

Good find! Do you have possibility to have the 3mm filament extruded too?

Adam