Finally figured out to machine grooves you have to trick the software into thinking the tool is 10% smaller than it is. Still very hard to machine grooves on surfaces which our product has many of. I’m testing MESHCAM which at least imports Shapr3d stl files without distortion, and allows simple machining in 2d, 2-1/2d and 3d. Their support team basically told me to just redraw the parts inside carveco and no problem! Sure…just redraw high tolerance parts that took me months to design and draw.
