Casted 8-axis cube core

Although printing a Twisty puzzle core is relatively easy, regular home FDM printers do not produce parts strong enough. Printed pieces either crack on layers, or screws break their thread and pop out.

This time I decided to make the core by casting polyurethane in a silicone mold. Usually this technique is used to copy existing objects, but generally it is quite complicated - it requires a complex sequence of actions to get 2-part mold (there are plenty of videos on youtube describing this process)

In this thing I am printing a mold for a mold to simplify creation of a 2-part silicone mold. General idea is to cast silicone into printed mold, and then cast polyurethane into silicone.

Core size is 44mm

Printing and assembly algorithm

Part 1 - making a silicone mold:
- Print Part 1 and Part 2 of the mold
- Print 2 pcs of each wall type
- Core is a hidden part, so no extensive post processing required. It is up to you whether to sand printed parts
- Use 8 pcs of M3 6mm