Ender 3 Build Plate Holder

I needed a place to store my extra build surfaces for my Ender 3 v2 so I designed this. Sized for the stock glass plates and Creality's PEI spring steel sheets, but theoretically could be used for other brands as well. The model itself can be printed on an ender 3, just have to orient the print at 45 degrees on the plate. The included screw holes are 4mm