Why is CIMCO Edit Ultra reporting collisions during normal cutting?

Direct answer

The cutter is expected to contact the workpiece during a cutting move, so checking every tool-to-workpiece contact can bury useful warnings in normal engagement. For routine collision review, scope that pair to rapid moves and use Stock Compare when the question is whether cutting removed too much or too little material. A small, validated cutter allowance can also reduce false contact caused by triangulated STL surfaces.