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I’m trying to cut close to as shown. I know I can’t cut 180,  it I should be able to get 160 or so. I have shown two attempted tool paths that don’t work. The 2d wrap only works on the outside of a cylinder, not the inside. 

 

Im coming to the conclusion that fusion can’t do this.

 

So basically, if the center of the 4th rotation was around that cylinder, the tool would stay in one spot during the cut. It’s not a perfect cut because it would be rounded from the tooltip geometry, but it would be reasonably close.