Download Free 3D Model FPV SMA Connector Thumb Wheel 3D Print Model

Summary
This printed part fits the 8mm SMA connector nut used on FPV gear. It slips over the nut portion making it easy to tighten/loosen the nuts without a wrench. I print one for each SMA connector and leave it in place. Using PLA the weight is just .25 gm.
There is a small and large version. The large has an outside diameter 1.5 mm larger then the small. I use the small for tight places such as a 45° or 90° fitting. I use the large where there is plenty of room to grasp and turn. You can get the nut slightly tighter with the large version.
Both versions have a .5mm slit to provide a little spring. This allows it to slide easily over the nut and allows for expansion and contraction from summer heat to winter cold.