3D Modeling and Toolpath Help - Clay Target with Domed Curve

[jtclose (Jim Close)]

I found using the largest ball end mill that fits.
I just lived this .

3D carve in eastern pine - Surface finish

On the subject of Step over versus cusp height, it turns out to be which dimension is driving versus driven. I am showing the cusp being the driving dimension. [StepOverXCusp] I had to prove it to myself.