u/DevLegion

Hey all, I'm hoping someone here will be able to answer this or point me in the right direction.

I 3D print a lot of models, mainly with Resin and end up with a lot of dirty IPA to either try to clean or dispose of. I've tried multiple ways of cleaning the dirty stuff but nothing works very efficiently.

One thought I had was to cobble together a kit to distill it. My current plan is to use a pressure cooker to put the dirty IPA in, run some copper pipe out of the top into a large pan full of cold water. Coil the pipe in the pan (which will be slightly above or level with the top of the pressure cooker) and have it exit from the bottom (or lower side) of the pan into a storage container (probably an old IPA bottle).

I've tried pricing up a proper chemistry distilling kit and it's bloody expensive, hence trying to create my own. I'm thinking the pressure cooker is a relatively inexpensive container that seals. In summer I should be able to just let run with ambient temperatures or use a minimal of external heating.

So, the questions are, is this a practical solution? And does anyone have any advice for layout like height and size of the cooling pan, how many coils would be best? Or just any other thoughts about how to make it practical and safely.

EDIT: I'm also looking into Vacuum Distillation as a way to avoid issues caused by heating IPA.

Can I make a positive from Play-Doh and use it to make a Tin Silicone mold?

I know it potentially releases Sulfur so Platinum Silicone is out.

What I'm hoping to do is use texture rollers on Play-Doh to make a master and mold with silicone so I can cast resin sections.

This may be a stupid idea, but, I was playing with my daughter and had an idea about using texture rollers on Play-Doh to make a master to create a silicone mold.

I've run the idea through AI and it suggests using Tin Silicone could work but as the saying goes..."trust but verify".

So, is it a possibility or a stupid idea?

My other options are to use the texture rollers on polymer clay or use a fusion or Blender mod to create textured models and 3D print them.