About this 3D model

My mendelmax uses cheap-o hall effect end-stops. One issue I had was mounting the magnets. I created this little carried to do just that. I sized the hole just a tiny bit smaller than the neodymium magnets you can pickup at your craft store (mine are just shy of 12 mm). I pressed the magnets in with my bench vice. Now I just have to figure out where to bolt it too...