Parametric Eyepiece Parfocalizing Kit

thingiverse

I parfocalized all my eyepieces to the same plane as my camera (T-mount). I came up with a parametric OpenSCAD which can customize any shim or clamping ring. I found the 2" to 1.25" adapters I already had were too short, after all, T-mount has a lot of back-focus, so then I made a parametric 2" to 1.25" adapter, which works especially well when it's meant to be higher. For the setscrews in the 2" to 1.25" adapter, you'll want something non-marring, like M3x12mm nylon screw, and M3 SS nut.