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Tolerance - Controls the machining accuracy. Specify the distance band across the width of the mathematically correct toolpath within which the actual toolpath entities can be generated. Small values result in a more accurate finish, but the system takes longer to generate the toolpath. When slotting, if a Continuous entity contains an arc that does not lie in either the XY, XZ or YZ planes, the resultant toolpath will break the arc into a series of small linear moves which lie within this tolerance.
Mid Point Snapping - Check to allow mid-points of entities to be acceptable as start/end positions, as well as the end points.
Select by Region - Check to apply the cycle to a region of a profile. Use the right-hand mouse button to cycle through the various methods:
Combined start/end point (only available for closed profiles)
Start point position
End Point position
Suppress Profile (only available when multiple closed profiles have been selected)
Once the region to machine is selected, EdgeCAM uses the climb/conventional setting to determine the direction of machining.