Because the camera bracket is threaded, print with “Fine” mode in Luban.
I used Silver Silk PLA for the bracket and white PLA+ for the camera frame.
But you can print in any PLA+ or color you like. There is one support required on the bracket on the rectangular gap and on the camera frame, under the cylindrical fastener. I suppose there is an opportunity there to do some further refinement to eliminate those supports.
The author remixed this model.
Redesigned the bracket to use a half-inch long camera threaded bolt (¼ inch x 20) and designed a camera frame to hold the camera right side up. Bracket slide-locks into an existing bolt head in J1's infrastructure to lock it into place and eliminate sagging and vibration.
Angle and distances adjusted to fit in tight space (see photos) and accommodate cables.
I was unable to upload the video to show how the slide lock works. Insert the bracket oriented toward the left, and once pressed fully upward, slide it to the right and the “catch” will slide over the head of the bolt.