Comment by sarchertech

I had no idea you were talking about algorithmically making molds.

You’re just talking about taking a positive 3d model and automatically creating a mold for it that you 3d print?

If so I wouldn’t want that to be algorithmic because that’s never going to work in the general case. There are just too many edge cases that you have to manually handle. Might as well just create the mold in your CAD program.