Using art clay to mold and manufacture scale Hex Nuts. Jedion357 threw down a challenge on TerraGenisis to create a DYI Hex Nut. Colonel Shofer suggested a latex mold using 2 part epoxy as the casting agent. Brain storming on the idea, I suggested using art clay as an alternitve mold material. The Colonel asked that I follow up with the project.
Hex Nut casting using 2 part epoxy and resin as casting materials. Resin on the left hand side, epoxy on the right. Impressions taken from a 4mm hex tool head and a 1/8 square plastic rod. The resin setup without bubbles and cleaned up from the clay with minor effort. The epoxy suffered a 50% failure rate from bubbles and still seemed a bit rubbery 24 hours after casting. The cleanup was a bit of a pain – the epoxy is clear & it is rather difficult to identify what material is the casting and what is flash. I would recomend resin as the prefered casting material for DYI Hex Nuts.