Prusa XL Side Bar Camera Mount

I wanted a simple camera mount that would attach to the upper arm of the Prusa XL using a T-nut in the slot on the outside of the arm.

For the camera mount, I printed a hex pocket that is a tight fit for a ¼" nut and installed it by heating it and pressing it into the socket.  You could probably use a hex head ¼" bolt of the appropriate length but I didn't have one handy.  I used ¼" all-thread rod and a jam nut for both the base and the camera attachment, resulting in a very secure mount.

For attaching the mount, I used an M5 T-nut and an M5 bolt, with a couple of M5 flat washers between the mount and the track so the mount stands vertically.

All in all, it is a secure and unobtrusive mount.  I mounted it at the front but it obviously can be mounted anywhere along the track and on either arm.  It may be a bit sturdier than really necessary and I included the Fusion 360 file if you want to slim it down a bit