[fzzzy]

Yes.

This isn't the one I remember seeing a few years ago, but I can't remember what that was, and this is what is coming up for me now when I search for the concept:

http://www.filabot.com/

[User8712]

Ah, interesting. It looks like they sell a grinder to chop up your old parts, and then the extruder melts them into a filament.