Excellent site for anyone who wants to get into plastic recycling.
I’m working with Free Geek on the idea of building a grinder there, because we throw out so many printers with plastic parts that could be easily ground up for reuse. Be a good source of ABS and acetal
I’ll try to keep posting updates on the progress.
The precious plastic videos you linked are absolutely awesome. Very well-produced and easy to watch.
I don’t personally have much need or interest in building these machines, but I think they’re really cool nonetheless.
I’d love to see this happen at Free Geek to turn plastic electronics cases into 3d printer filament. 
So Free Geek has been talked into building a shredder for the plastic. You have no idea how much we ship off every week. Its very sad… But I think at least at some point a lot of it gets recycled. But still I’d rather see it done there so they can get some money to put back into the operations.
Anyways. Looking for a used 1 Hp (10+ amp) 120V AC electric motor that gears down to about 70 rpm. If anyone happens to know of something or someone.
Also with regards to our project for an injection molder for VHS. The design that preciousplastics has is by far the simplest I’ve seen yet. So might be our first iteration.
I have been looking more into heaters and heating. I priced out resistive heaters and they are about $17 each on Ali. We need 2. so $35 pair.
I’ve done more research on an inductive heating system. Isn’t much cheaper when you factor in all the parts but does have some advantages. Heats up way faster, better heat control. less wasted heat, safer on the outside. Much easier to reuse if we change the heating chamber in the future. Money is saved with not needing a PID.
But its a far more complex system for the induction element. It does have exposed copper coil which needs to be insolated to prevent shorts, And possibly air or water cooled depending on how much waste heat is generated in the coil.
Water cooling is in fact an easy option to implement. Though then you have another system to manage. Thankfully I have some experience and equipment we can scrape up from CPU water cooling systems. Might finid something from Free Geek.
There was a shipping container full of viable candidates last time I went
to North Star Metal
e: motors, that is
Great thanks I’ll try go check them out today
Found this. I’m sure we can build this for less.