@Lewscrew thanks a lot for looking! You are correct in many places the tool does not reach the full depth of cut, including the place just above where the bump out is. That is why the z height is changing. In the place where the material juts out, it is at full depth (where the tool path triangles are it is clearing out the full depth because the rougher didn’t fit in there). For the bump out either it’s not actually at full depth or it has moved over too far. I could put a depth gauge on it and measure it to see if it’s at full depth. I find the preview in vcarve (desktop) to be very grainy. It was hard to see if it was there or not but leaning towards not. I’ve checked the nodes (I drew it) and there are no nodes in that area it’s just a straight line. I calculated how much the tool needs to move over based on the tool angle and change in z height, and came up with the exact same distance that I measured in VC between the tool paths. I haven’t tried the Vectric support channel yet.