In spiral pocketing, can I specify a point for the toolpath stepover instead of defaulting to the corners?
By stepping in the corners, the tool is buried for a greater distance than it would be if stepping over perpendicular to the toolpath. The last pass, when spiraling inside to out, tends to chatter in the corner, especially in thin wall machining. Mastercam V7 has an option in the pocket finish parameters to “start finish passes at the closest entity.” When checked, this will make the rough toolpath start and step over at the chain start point, even if the finish passes are turned off.
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