[backlog] September 30, 2019

A project log for The Trash Printer - Version 3

An open-source, low-cost, large-format 3D printer that can print directly from shredded plastic trash instead of filament

Sam SmithSam Smith 10/07/2022 at 21:280 Comments

[ Backlog - This log was adapted from my Patreon, to fill in the details about how this project has developed over the years. Check the link for the full post, and if you appreciate this project, consider supporting it! ]

Here’s what happened this month! 

We set up the Trash Printer at Portland Mini Maker Faire, and printed a sign that says TRASH PRINTER out of trash!

Dave Hakkens, the founder of the Precious Plastic movement, and a big inspiration to me, became one of my Patrons! Dave's detailed documentation and helpful videos are what got me started working on plastic recycling, and I aspire to make stuff as useful and accessible as he has. Thanks Dave!

What I learned this month:

Printing on glass with a heated bed made out of a radiant floor heater doesn't work very well. The PP just falls right off as it cools...

But printing on a sheet of solid polypropylene, with polypropylene, with the heated bed works pretty well! I made this little Extinction Rebellion emblem for the Climate Strike.

I made this little token using a combination of 3D printing and molding making. I made a laser-cut acrylic mold, and then just manually extruded the plastic into it. This one turned out OK, and I think the process has some potential!