elpulpo - Good idea! I have an Extrusionbot that I'm in the end stages of building. If someone has some plastic that needs extruding into filament I'd be happy to give it a go and it would probably provide the incentive for me to complete the build. I've also ordered a Strooder...

https://www.kickstarter.com/projects/omnidynamics/strooder-first-truly-consumer-3d-printing-filament

...which should be delivered in October.

Worth mentioning that it's not recommended to extrude filament solely from 3D printing waste ( rafts etc ) without some quite high proportion of virgin material as the material does break down, to some extent, in the printing process. Maybe there's a market for a completely re-useable filament material?

angusgbishop - I have been thinking about this for a while, did a little research and found sweet FA.
Would it be possible to extrude LDPE from plastic bags etc?, It seems to be a thermoplastic, and I think I have seen printers mention that they can use the stuff.
If this was possible I think I would start giving away LDPE filiament for free, as plastic bags piss me off enough that anything I can do I will to help.

elpulpo - Certainly, the environmental impact of home recycling of thermoplastic materials could be massive but I would have thought the less "waxy" plastics would be the first target, and especially PET. I can't wait to start recycling those fluorescent acid green Mountain Dew bottles into cool things!

vinnie90: I'll be starting at a proportion of 75% virgin to 25% recycled waste, which would allow me to re-sell at around $10-12 per Pound, plus spool, shipping etc. One of the most exciting possibilities would be the opportunity to supply custom and matched colours of filament in return for waste.

ryan66 - There is the great article online here https://freerobuxtips.com i love it online post thanks a lot to share online all web users.