So I've been handed another perplexing part to quote and I can not figure out how the person who gave this to me drew it in swx.

Drawing, and my two attempts attached.

I can't get the closed corners like he did. In reality this part only needs two 20° notches in the flat view. I can't get SWX to let me do that, it always puts relief in the corners. That's going to be extra water-jet time. I wonder if I'd have to draw this as a flat first and bend it to get it to do what I want?