I have a cylinder on one end of which I want to leave a raised area that is the full width of the circle and 3mm wide. It will be 2.5mm high. See attached dxf. I want to put this on end in a V-block and use a 1/2" end mill to simply cut down 2.5mm.
I have tried all manner of operations (contour, facing, pocketing) in combination with dividing the lines into various contours (just the two horizontal lines, the half-circles as contours, etc) but can't for the life of me get a tool path that will cut this. The closest I get is cutting the raised area by making the two center lines separate contours and doing profile with outside offset . But then the outer part of the circle will have to be cut manually as the cutter can't reach the edge, I just can't get the cutter to go out there. How is one supposed to do something like this?
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