Hi Dave,

If Sheetcam can do isolated lines as paths then ignore the next bit -
I done something like this before and due to the limit Cut2D features I had to copy the dxf outline of the complete shape into a new CAM file, then used line creation and node editting tools to create a local closed off feature just in that area. Then deleted all the rest of the profile. So you end up with an enclosed local shape using the existing slot/loop features, plus some lines around the outside to make it enclosed. These extra lines are drawn in the scrap area outside the part. You can then select this little profile and do an inside roughing or finish pass to save running round the outside of the whole shape each time.


As the slot is 2mm wide, and using <2mm cutter could be risky, it sounds like you will have to go straight to the finish pass. You could cnc spot drill the centre of the 3mm holes in the loop, then pistol drill dia 1.5mm freehand (as material is thin you should stay inside the hole boundary!) to relieve some of the cutting.