Sorry if this has already been posted.

There is a company called Rede (ready) Tec that is offering a recycler extruder. Your failed prints can be chewed up in a onboard shredder then merely dumped into a hopper where they will be extruded into filament and spooled up while you wait. They predict that it will spool filament at 10 feet per minute. Here is a vid on youtube of their device.



This is their website
http://www.redetec.com/
Or if you prefer you can find them on Facebook.
https://www.facebook.com/redetec3D?fref=nf