Back pressure for molds (Patreon)

Working on making back pressure molds for customer printed molds and my own. We had been having a few issues with foam casts having huge bubbles but were able to reduce most problems but creating back pressure when casting. You do need to add some foam release holes as the foam creates a ton of pressure when casting so it will need a place to escape. This one is for a rabbit mold we are working on for a customer.