3 D Printed Epoxy Injection Mold, Part 1

Aluminum Filled epoxy is a great material for shortrun injection molds. It s tougher than 3D printed injection molds, and has better thermal conductivity and 3D printed injection molds. My goal is to still use 3D printer, but to create a positive and then pour the epoxy around the positive. I used EpoxAcast 655 + HT: