Shearwater NERD computer mount for AP Diving bail-out valve

thingiverse

I created this custom mount for my gen1 Shearwater Near Eye Remote Display (NERD) dive computer two years ago, because I couldn't find a suitable fit for an APvalves Bail-out valve (BOV) rebreather mouthpiece at the time. The mount fits snugly over the metal cover on the unused side of the BOV mouthpiece, featuring a dove-tail slot that securely holds the computer in place with its original set screw transferred to the mount. Two versions are available, allowing you to choose which side of the mouthpiece features the HUS display (left or right while using the BOV). Opt for the best print orientation for your printer and take advantage of separate support filament capability. I used nGen filament for mine, but ABS or higher quality materials should also work well. After printing, use a small file and knife to smooth out the dove-tail slot where the computer fits into place. When done correctly, the mount will slide over the metal cover on the side of the BOV mouthpiece with sufficient friction to stay in place, and can be easily removed after diving by sliding it off when removing the breathing loop for cleaning.