Well I downloaded Meshmixer a while back and came to the same conclusion......but then I didn't think I needed Autocad's 3d either. Maybe I'll try a little harder.....have a closer looksee.
Printing the baffle update:
https://i.postimg.cc/hPpKpWfn/IMG-3588.jpg
The old one works, but it allows an occasional bullet to ride on top and not come down....and that'd be worse with a whole box of bullets. So I added a back wall to prevent that.
I think I'm getting addicted to candy green.....maybe I'll buy a similar roll of blue and red.....