2015.08.11

HDPE

In our last experiment recycling HDPE into usable form, we created a brownie pan full of plastic. While this looked impressive, it wasn’t the best idea for something that was going to be milled. It ended up being much thicker than needed, and finding a cutting bit with the proper LOC (Length of Cut) proved to be an issue. I was all set to mill a thicker piece, but we blew a fuse on the Shapeoko.

HDPE

I decided that I needed sheet material of a uniform thickness, so I ended up creating a simple press using two pieces of wood, with some spacers. Once I warmed up the HDPE block I got it out of the pan, onto the wood, and stood on it until it was squished flat(ish.) I then put some weights on it until it cooled.

HDPE

It turned out well! It’s a pretty uniform thickness now, and this was just under 1/3rd of a bread loaf pan, so I may need a bigger press if I want to do bigger melts. I can also make different presses with different thicknesses as well.

HDPE

Funky!

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