Extra shelf bracket for IKEA Detolf display case

I made these simple brackets to add an extra shelf to my Ikea Detolf display case. To make a set for one shelf you'll need to print two of each A and B. You'll also need four #8 flat head machine screws and nuts per shelf. (The screw heads should all face inward so that you can get to them with w screwdriver.) The model units are inches.

I'm using the display case for wargame miniatures, so I used 1/2" plywood for the extra shelves and painted it up like terrain. The shelves should be 11.5" x 15". You could get glass cut to this size instead.