Resin casting lets you produce parts that would be otherwise impossible to make without a full CNC and injection molding set-up. It costs about as much as a 3d printer, 300 to 600 US dollars ...

Possible, but not exactly easy, as [Zachary Tong] relates ... good enough to try a few casting shots with epoxy resin. [Zach] ran into a few problems along the way, like proper resin selection ...