I used CNC to cut the Wax that I wanted to get a shape for casting
So I choose the (Styrenefoam)bluefoam for the testing first.
Here is the setting for bluefoam I used on the SRP Player
Since my STL-file (modle) with a lot of concave shapes, so I chose (Modle with many curved surfaces )
Choosing Partial and Adjusting the outer contour as close as possible to the edge of the model
When I finished the molding, I chose flexible silicone that this material is very soft and translucent for casting. The mixing ratio is 1:1.
Here is the Wax -- Ferris Machinable Wax Block