Molds for Tiko Anti-Backlash Weights

Mold for creating weights that can be used with a Tiko 3D printer. Inspired by the post by Pratyeka on the [Tiko forums](https://forum.tiko3d.com/viewtopic.php?f=23&t=1202), read that for more info on using weights to reduce the TIko's backlash. There are also easier and cheaper ways to add weight, but I was just looking for an excuse to try metal casting in a 3D printed mold.

For more info on the metal casting process, I describe the process in the following blog post: http://thrinter.com/