I'm running into some issues with the 3D trace toolpath on the truck project today, and I'm not entirely sure what's going on.
While I was proof checking the toolpaths for the model truck project, I noticed that the trace toolpath that contoured the vehicle's bottom rim left a faceted surface. This is the toolpath that I had to manually draw out for the endmill to follow as it had some odd heights and angles it had to reach. It seems that the tool is cutting the face, but it's leaving considerable facets as it moves. I thought initially I made a mistake when drawing the spline out, but after redrawing it, I had a similar result.
My boss thinks it could be the software making things overcomplicated, and the machine is getting overwhelmed by the information. He suggested I add a simple 2D contour toolpath right before it to get the bulk of the material away, then only use the 3D spline in the section that it needs. Thankfully this is pretty easy, and I can test it out tomorrow.
I also ran through some of the deep walls finishes with a long flute endmill, which was a bit sketchy and screeched quite a bit, but at low RPMs and feedrate, I got an amazing surface finish. I'm honestly quite shocked how well it turned out for how much it was squealing in the corners! I did have to play around a bit with the feed optimization setting in the passes tab to make it crawl into corners rather than taking them at full cutting speed.