ABS plastic adapter ring to fit the ~36mm⌀ X3 filters to the ~34mm⌀ X4S thread. Print ABS as the aluminum threads bit into this rather than fracture PLA. make sure your printer is properly calibrated, or the sizing will not be correct.
I am not responsible if you lose parts, damage your equipment, injure yourself or others, etc. Do not fly with this on your sUAS / Drone... ever. You take full responsibility of this file's use.
print part brim to resist curling. Heated bed