u/meronder

I am currently experimenting with silicone moulds, and I am thinking on creating my own. The challenge I want to address is the best way to get rid of layer lines. I have 2 option:

1: Print the mold, cast the object with gypsum(or other material). Sand the gypsum until I am happy with it, create the mold from the gypsum object.

The reason for this option is that I consider easier sanding gypsum than PLA.

2: Print the object, make it smooth, and create the silicone mold from it.

Option 2 have less steps, however I am worry that sanding and filling the PLA would take longer than expected. Since once I got the silicone mold I will not need this piece anymore. Is ther a dirty and quick way to smooth PLA?

Any suggestion would be appreciated