This video walks through the process I use when #3Dprinting molds. I also discuss some of the tips that will help your molds be more successful so you don't have to fail as much as I did in the beginning.

Affiliate Links to parts I use (I may get a small commission on these sales at no cost to you):

Mann Ease release:
https://amzn.to/3HS2Lz5


NOTE: I don't specifically say it, but you can see in the videos in which I'm molding foam that I have cuts to release pressure and let he foam expand. This is dependent on the material, and the manufacturer of the specific foam being used should have guidance on this to get the appropriate back pressure. Please check with the manufacturer for any safety and technical guidance on this to ensure it's done properly. Pressure build up can be a hazard as well, so getting this correct is important.