To avoid cutting on the vector (your first drawing in your initial post), which does not give the best cutting condition (the linear cutting speed of the tip is 0), with a 90° V-Bit set these parameters for the 2D profile toolpath:
-machine vectors Outside/ right (or inside / left for an internal chamfer, not tested)
-set the allowance offset to - chamfer value. For example, for a 2mm chamfer (top view), set the allowance to -2
-set the cut depth to a value > chamfer value
The software will set the depth cut and the offset of the tooltip in order to get these values and cut as in your 2nd drawing. No need to do any math.
Tested on Aspire trial 9.5
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