Finishing Chamfered Surfaces inside of holes (Work-Around)

Created by Michael Webb, Modified on Thu, 2 Nov, 2023 at 4:32 PM by Michael Webb

Depending on your case, you may need to take special considerations into account to ensure proper milling of surfaces.


In this case, we have an Overstructure with a hole, featuring a chamfered rest seat:



Your milling strategy should contain operations for finishing holes. If for any reason the object that you are using does not have this option (IE: only has drilling, and no "finishing-drilling" operations), you will need to manually designate the hole that you want to finish as a work-around. We recommend that you also check for any available strategy updates from our support team or CIMsystem.


1. Identify the two holes using the 3 point detection for drilling / screw channels.

2. Shift the smaller of the two drilling axes up in Z to line up with the larger one that was detected. It is important to maintain the full height of the axis in order to ensure that the finishing hole (stump) operation doesn't encounter excess material.


3. Identify the top area as a Stump Margin.




4. Make sure that you have the Finishing Stump being used in the Strategy Editor.


NOTE: Don't forget to check the insertion direction that was determined by the stump margin designation. You can check this by clicking on the resulting pink arrows that are created and examining the machine's view relative to the screw channel.




If you need to adjust this angle, you can do so under Tools > Curves and Surfaces > Change Cavity Axis:


Align your view and use "Set from View":


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