12GA Shell Quick Box Loader - Cutouts

I printed the model by @ductape and it was great, but I couldn't get my shells to lay flat.

A quick inspection revealed why. The brass rims on the base end of the shells, in a rear-facing orientation, stick out a tiny bit. Looking at my vintage metal EZ-PAK at home, I noticed the cutouts on the rear plate.

I added a few styles of cutouts in TinkerCad now the shells all lay 100% flat!

I have given a few of these away as gifts and people love them.

Enjoy!