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brad_francola
in reply to: rbameMA3EK

Hi.  I'm assuming you want to do this in a 3-axis setup with the bottom of  your part parallel to the table.  Other than using a surfacing toolpath with a spherical tool, I can't think of a way to do this and generate your perfectly sharp corners.  But, you could set this up in a sine vise similar to this: 

bradfrancola_0-1625019313998.png

Another option would be to undercut the corners.  Then, you would have clearance for the radius of your ball mill.