1- piece of mountain bike inner tube for anti-slip mount under polycarbonate block
1- GoPro flat adhesive mount
Used a 3/16" drill bit and drill press to drill 3 holes through polycarbonate block for hose clamp. Then used a Dremmel tool with a spiral sheet rock cut out bit to finish the slot. Note the slot was off set just a tad to accommodate the next step. Using a drum sander on drill press sanded a contour into the block to match my macro port. Then eased the edges of the block with the drum sander. Then disassembled the hose clamp to feed it through the block and added the piece of bicycle tubing and reconnected the clamp. Mounted a GoPro flat adhesive mount to the top of the block and attached assembly to the macro port, just tight enough to keep it from slipping. The road bike tubbing not only prevents slipping of the mount on the Delrin port but also give the tag end of the hose clamp a place to go and be out of the way to prevent snagging.
Thanks Chris, yes my port is Delrin. I like you idea with a hose clamp or two. I will give it a try. My focus light is taking the spot in the middle of the housing otherwise that would be a good spot with a short arm as you have done.