Atari Cartridge Base for Holder

The original design of the Atari cartridge holder by tankgrrl was great, but I had a small issue with cartridges sliding forward. To keep this from happening, I designed an add-on base unit that angle the cartridges back just a bit to keep them from coming out. I also glued a thin "back rail" on back of to keep the cartridge holder on top from sliding out. It may be a good idea to glue one on the front as well. The base holder and back rail STLs are provided. It's a great vintage look 3D printed in PLA with wood.