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Hi @Lonnie.Cady, @Laurens-3DTechDraw, @Steinwerks
Thanks for posting! I was able to reproduce some unpredictable behavior in both the file attached to the original post in this thread as well as in a new file. It appears that the cutting heights seem to be somewhat unpredictable when three variables are present in the model and drilling operation setup;
- the unpredictable heights only occurred when the chamfers were present in the design,
- the "Auto-Merge Hole Segments" flag is enabled,
- the top and/or bottom heights are defined as "Hole Top" or "Hole Bottom."
In your file I noticed the extra drilling length was added to the top of the hole - when I recreated your exact geometry and drilling operation in a new file the extra drilling length was added to the bottom of the hole!
From my tests, I believe this is an issue in which using "Hole Top" and "Hole Bottom" as the height definitions is causing problems - if you select anything else for the heights (model or stock tops and bottoms or geometry selections), then enabling the "Auto-Merge Hole Segments" flag no longer extends the drilling depth. As I believe this is a problem with the way Fusion is seeing heights defined by the hole geometry, I have logged an issue (CAM-8169) with development. We appreciate you bringing this to our attention!
While this is addressed, using any other height definitions than "Hole top" and "Hole bottom" to define the top and bottom heights of the cut should allow you to work around this unpredictable behavior. Please let me know if you have any questions - I am happy to help.
Fusion