A simple L-Bracket, to allow for more fixing options for larger lenses and cameras to the OG star tracker. Simply unbolt the central boss from the main pulley and replace with this bracket. You may need longer M3 screws and some washers.

The slot should have supports added, unless you are very confident in your bridging! A 1/4 tripod screw will just fit, and will remain captive once pushed through. Ideally you want a tripod screw with about 6mm of unthreaded length between the head and the start of the thread. These are pretty easy to find.

To print, use in the supplied orientation, 0.3mm resolution is fine, and use 50-60% infill for plenty of strength, but not too solid, so as to prevent warping while printing.