For practicing working with a three axis CNC router, I want to make a mold from:
So I went ahead and subtracted the column from a block:
Now, it gets complicated. There are some spikes that I would like to remove in order to make the mold machinable:
I tried that with additional boolean operations:
They failed with NURBS, although there were clear overlaps. With the objects meshed, I succeed, but the result is buggy and has naked edges.
What’s a good work flow to get what I want?
Unconventional idea: One could create a depth map. VRay I think can do that, possibly also the demo of it. The map could be edited in the Gimp, smoothing out spikes. Finally, one would import it back into Rhino using