[wms]

Hu,

Another way to cut a part like above is to use the "pocket" funtion.

In photo example one, I only selected the inner features, not the outer boundary.

Here's how:
Open the Nc manager, then select "stock tool paths".
Now select "pocket", then "pick by boundaries"
Then select ALL the inner features.
Then set your tools, material, depths, ect.

And the software will do the rest. It will cut out the inner features.