Kensington Orbit trackball mount

This is a mount for the Kensington Orbit trackball. I designed this specifically for attaching to 1530 aluminum extrusion, but it will also work for attaching to any flat surface. Has 15 chamfered screw holes for a variety of orientations. The lip around the outer edge holds the trackball firmly in place, even if the surface it's mounted to is not level. I've used this mounted at 90° for months with no issues at all. I'm using M4 screws and T-nuts to attach this to my extrusion.

This is designed specifically for the Orbit model, but may also fit other Kensington trackballs. PLA will work, but the fit is quite tight to ensure it stays securely in place. Because of that, you may want to use PETG. It's a bit more flexible and less likely to break during install/removal of the trackball.