I’ve created the .c2d file in Carbide Create. Please see the attached file. electric nut.c2d (75.0 KB)
I had no problem cutting the basic shape outline without the half circles. However, cutting the half circles presents a problem. If the diameter were larger, then I could simply use the drill toolpath. However, since the radii are so small, this won’t work.
My inclination would be to rotate 90 degrees and cut the channels using ball-nosed endmills of a suitable size — you should be able to use tapered ones which will be quite strong.
I’d also suggest making a pair of fixtures so that you can make the cuts w/ the face of the cutting flat — first one holds the stock on its side so you can cut the profile as in your file, the second holds the stock so that the top is flat and you can cut the channels while presenting the surface flat to the tool.
Not sure if a groove would work (instead of a round) - but you could keep the entire part in a single orientation if you use a v-cutter to create the slots,
Otherwise you could make the holes circles and use the drill command - with the approriate sized drill bit, then just cut the holes in half when you cut the profile.
