Camera backpack mount for 60mm belt

After a few attempts at designing a backpack mounting system for DSLR, including this one which I published a while ago, I found that attaching the mount to the sternum strap was not the best option as this strap is usually loose and can move more or less freely vertically along the main straps. Also my carabiner-based option allows the camera to bounce and rotate, which is annoying. So I opted for tonpa888's model, which is really strong and has a nice locking mechanism. I had to modify it for my backpack (and to use different hardware) but the core system, slot and hotplate shape are really the same, and I think they are perfectly robust. My adaptation is quite specific to my backpack and other things, but it could serve as further inspiration rather than being replicated identically. Parts The printed parts for this version are: Mount Hotplate (or you can use the original instead) Button Hook and the other parts are : 102x20x3mm aluminum plate Four M3x20 countersunk screws M3x40 screw with nuts 3x70 nail Pen spring (about 30mm long) 24x16x2mm gasket I used the additional part plate_bending_guide.stl to bend the aluminum plate and drill the holes in it (2.5mm, then threaded as M3). But it was uneasy, I should have made the guide part longer to have a better lever, and anyway it would probably be simpler to bend the ends only to 90° instead of 180 and screw them horizontally into the mount. I used a 3mm, 70mm long nail because this is what I had. It was not too difficult to bend it approximately as designed (after a few attempts), but I then slightly modified the model slightly to match the actual part. I “squared” the head to fit into the notch. The hook is here to prevent the mount from slipping along the strap, given the camera weight (just squeezing the strap between the mount and plate is not enough). It goes on a secondary horizontal 20mm wide strap which is sewed in my backpack's main strap. It may not be very load resistant, but even if it breaks, nothing bad will happen. I didn't use the original “sandwich” hotplate with a steel plate, because I had a camera screw which was shorter the length required for the original design. Plus, I believe that it's overkill. The single hotplate part has a hole for a gasket to prevent rotation. Final thoughts It works quite well overall. Maybe the position is slightly more on the shoulder that I would wish, but I'm still able to walk freely with poles, and access the camera easily. I would probably bend the plate differently if I was doing it again (at 90°, as explained above), reshape the button and make the mount part more round to avoid sharp contact with the chin. Maybe the hotplate thickness is slightly excessive too, but that's minor.