Summary

Just a simple hole plug for arcades. 24mm and 30mm models. Used them to plug up some holes on some Pandora's Box arcade systems where the the buttons were removed. Depending on your 3D printer, you may have to scale up or down a bit. If it's too loose, you can just add some electrical tape around it to make it a bit thicker. I included the Sketchup file in case you need to make changes.