I went with the recommended settings for aluminum. i think it was 5 in/min for feed rate, 2 in/min for plunge rate and .002 in depth per pass.
I’d only be cutting 1/16" deep total. The brass is 1/2" thick, 4" x 1". here’s a screenshot of what i was trying to make. and i just realized i need to mirror the image. kinda glad I decided not to do it yet haha
