Sort of.
This was just covered at:
You need to cut out around the initial outline first, then around the outline plus tabs.
First, duplicate the rectangle:
Second, edit each tab so that it overlaps with the rectangle:
Done
Then select the rectangle, then shift-click on the edited rectangle so that it is the key object:
Boolean Subtract:
OK
Repeat for each corner.
Note that for the ones along the edges it will be necessary to add a node:
Done
OK
Eventually arriving at:
Note that you may want to add dogbones at the corners of the rectangle:
Assuming you are using a 1/4" tool, inset by 0.25 plus 10%:
Select the rectangle and the inset geometry and cut as a pocket to the 1/8" depth:
Then select the tab geometry and the inset and cut as a pocket starting at that depth:
Add geometry and toolpaths for the balance as appropriate:
Feeds and speeds were set up for aluminum, and it was assumed that workholding would not require tabs (see the above link for how to do tabs).
v7 file attached.
outer frame_v7.c2d (108 KB)