Camera 1/4" to GoPro mount

This will allow you to adapt any ¼" mount camera including the newer Instal360 X4 to the generic GoPro mounts that are prevalent in the market. There is a good chance that this will adapt other camera mounts if you find the right screw. 

Metal parts needed:

• 1x ¼" x ½" hex head bolt. One that properly screws into your camera mount. Mine was a ½" hex head, ½" long thread and ¼" wide thread. 
• 4x M3 x 10mm or 8mm bolts, again I had these in stock but should be easy to find (I believe mine came from this kit). 
• 4x M3 x 8mm threaded inserts. The kit I bought these in are here.

Special needs: 

• Device to safely heat and insert threaded inserts into the PLA Frame. I used a standard soldering iron.
• Possible a butane torch to get the Hex bolt to fit properly into the PLA Knob. 

Print instructions: 

I used MicroCenter Inland Gray and Orange for the PLA and SainSmart 95A blue TPU Flex. All were printed on Mk3S at 100% speed (PrusaSlicer .15 Quality setting with above mods). 

Assembly instructions:

• Push the 2 GoPro hole slots through the base of the Connector pieces. 
• Test fit the Connector cover over the top, it should be quite tight based on the model dimensions. If it fits nicely, apply some glue to hold it all together and let set. 
• Insert the Hex head of the ¼" screw into the knob and insert the threads through the Frame to test tolerances. The screw should spin freely and the knob should be very tight to the bolt head. I had to apply a butane torch to my knob to get my hex bolt head in completely.
• Test the GoPro side of the adapter on top of the knob and frame and make sure it all aligns well. 
• You'll notice a bottleneck down each of the 4 holes down the Frame piece. This is to give the Threaded Inserts more to bite into. Use a soldering iron to heat and insert the Threaded Inserts down each of those 4. Try to get the threaded inserts about 1mm or so down the hole. Each hole is 10mm deep and the bottleneck is 6mm down so the threaded insert should easily melt and seal itself with that extra PLA. Let it cool before inserting bolts. 
• Screw the GoPro Connector piece down to the Frame over the Knob piece and ¼" screw. The knob should have some resistance when turned but not excessive. 
• Test it on your camera. For me, there was a gap between the PLA and the bottom of the camera, and I built the TPU spacer ("washer?") to fit my gap, so you might need to scale the Z axis on this one to give proper tension and grip between the camera and PLA.

NB/PM:

I take no responsibility if your camera disconnects and causes harm or damage. That said, I designed these objects to be as structurally sound and dimensionally stable. The TPU provides great grip, pressure, and tension to hold the cameras orientation on the mount but you might get lucky and the screw fully threaded into the camera will accomplish this on its own. I believe I'll be doing the PLA Frame and Connector pieces in PETG next, and when I do I will update this post with more pictures/notes.