I've been trying to cut simple shapes out of curved surfaces, and get poor cut quality most of the time.
To experiment, I've used different post processor's (arcs vs normal etc), I've run the same profile cut but NOT projected to the mold, I've slowed it down, I've simplified the vectors with circular arcs and bezier arcs, and tried cutting ON the vector instead of OUTSIDE the vector.
So far, the only combination that gives me any luck is ON the vector, and NOT projected onto the mold. I could get this to work to cut out the parts, but it would be faster and cleaner if I could cleanly map the toolpaths to the 3D shape.
Based off what I've seen, it seems Aspire is somehow coding things in a way that creates jerky motion, and low quality edge finish of parts. I've briefly looked through the shopbot code and don't see any real differences between a clean running code, and a jerky one.
Any ideas or help on this?