Recycling waste 3D prints with a Precious Plastics shredder

In an effort to recycle waste prints, I had previously used a garden shredder and modified paper shredder together with some success. It could only handle thin pieces, however, so I had been planning a bigger, better shredder for some time. When I found the Precious Plastics bazar, it became feasible to put one of these machines together without too much time commitment.

Driving my shredder box is a 500kg garage winch, partially disassembled. It has more than enough torque for the job. The weak link is the coupling between the two, and although I have it working for now, it’s going to need further improvement.

Performance is outstanding! I can crush pieces I designed to be bulletproof, such as 60% infill, thick perimeter parts for the MPCNC Lowrider 2. You can’t do too many pieces pieces at once but if I shred as I produce waste it will be fast and efficient. The smaller particles melt in my oven in a much faster and more uniform way. I'm planning to mill and laser cut some parts, but ultimately want to make my own filament. If you want your product featured, get in touch.

I know not many will follow this at home but I feel passionate about this project and want to do what I can to document solutions to a significant problem.

Thanks to my generous Patrons for making this project possible

Looking for an alternate solution? Check out the https://replay-3d.com/ filament recycling program. Or the great work of Augustin Flowalistik’s Plastic Smoothie project: https://www.instructables.com/id/Plastic-Smoothie-DIY-Plastic-Recycling/
Finally, CNC Kitchen made a great video on recycling prints into filament: https://www.youtube.com/watch?v=vqWwUx8l_Io
Part 1 of my shredding journey: https://youtu.be/8HVjUGZM_cQ

Precious plastic website: https://preciousplastic.com/
Shredder instructions: https://preciousplastic.com/en/videos/build/shredder.html
The shredder box I purchased from the bazar: https://bazar.preciousplastic.com/en/listings/736992-shredder-boxes-assembled-australia
Garage winch I used: https://www.ebay.com.au/itm/392078776463
Rack It modular shelving from Bunnings: https://www.bunnings.com.au/our-range/brands/r/rack-it-1000kg

Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au

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