This is an adjustable camera mount designed to mount any camera using a standard 1/4"-20 tripod mount screw for use with a Prusa i3 MK3, MK3S or any other printer using 3030 extrusions for the frame.

To assemble, you'll need the printed parts, plus the following hardware:

• Screw, Socket Head Cap, M3x12 (2x)
• Thumbscrew, M5x25 (4x) (I used http://a.co/d/6dG0zb2)
• Thumbscrew, M5x20 (1x - optional, replaces one of the M5x25 screws)
• Screw, Tripod Mount, 1/4"-20 (The design is based on http://a.co/d/i7hT0pA though I haven't used it as I had a spare eveready case mount screw lying around)
• Nut, M5 or Insert, Threaded, Heatset, M5x6x7 (4x - see below for details to decide which you need)

To attach to the frame, thread the M3 screws into the mounting nuts and turn them horizontally to insert into the slots on the frame extrusions. Once in, turn them 90 degrees to vertical. You may need a pair of needle nose pliers to do this. The mounting plate then slides down over the screws in the mounting nuts, with the protrusions of the mounting nuts engaging the slots in the mounting plate to prevent rotation of the nuts while tightening the screws. Assemble everything else as shown in the attached images.

If you use the M5x20 thumbscrew, it secures the swing arm to the mounting plate.

Since I'm not sure of the absolute dimensions of the tripod screw I've linked above, you may or may not be able to use a 3/16" e-clip on the shaft below the threads. If the unthreaded portion of the shaft measures anywhere close to 3/16", and it likely will, you'll be able to insert the e-clip on the shaft, which is the purpose for the obround slot on the top of the camera mounting plate. This keeps the tripod screw retained in the camera mounting plate when the camera is removed. There's nothing special about this part, but I found it at Lowe's for a reasonable price, and didn't have to buy a large quantity I'd never need - https://low.es/2TewgzD

I've provided files for two options to secure with the thumbscrews: one uses M5x6x6 heat-set threaded inserts (which is what I've built and is shown in the photos), and the other uses standard M5 nuts. The differing files end in either "insertVersion" or "nutVersion." Pick the one you want.

There are rails on both the swing arm and the upper lift arm for securing the camera cable with velcro straps or wire ties to help keep the cabling under control.

This is my first upload to Thingiverse, so I'd love it if you'd make one of these for yourself and share your make back here. I've included .step and .iges files, as well as a Fusion 360 archive file for you to play with and remix as you'd like. Be sure and link back here and let me know what you've done to improve the design.

Edit...

Printing details: I printed everything at 0.2mm layer height with 5% infill, except for the frame mounting nuts which I did at either 0.1 or 0.15mm. I don't entirely recall.

The swing arm and lower and upper lift arms print the transition between the rectangular arm and the mounting clamps more cleanly using supports. I was able to print fine without them, but the cosmetics of that area are poor without something to support it.

Enjoy!