[compunerdy]

I have attached the file. Sprutcam shows that it will overcut the path and I went ahead and machined the parts thinking it was a graphical issue but it is not. Any ideas on how to get it to cut correctly?

Thanks..

[adamvs]

I ran this SC9 and am not seeing the overcut. It looks pretty good to me.

[mountaindew]

Your using a 2d function on a 3d compound surface. The tapered cylinder with notches milled out that are not perpendicular to the outer or inner surface will make for complex tool paths.
The only way I know how to mill surfaces like this correctly is using a 3d mill operation like waterline. Then under job assignment select outer diameter and set as top level and inner diameter and set as bottom level. Select all the faces in the notch and add as faces, then select outer edge much as you had it and click job zone to restrict tools to this area. Set depth of cuts fine enough to pick up the compound curved angles. and also set your "A" axis and the copy rotate 4x 90
Depending on scallop left from depth of cuts I see a very clean surface. I can email the file back if you want to see one way to do it anyway.

[compunerdy]

Forgot I put this on here.. The guys at Tormach gave me a solution that did work. First we changed the 2D contour so that it left enough material and then we did a 5d contour to finish it to the correct dimensions and the parts meshed pretty much perfectly then.