Gopro bicycle seat mount

thingiverse

Needed a gopro mount for the rear of my seat, on my bike....found a pic on the net, of one I liked. A quick tinkercad later....I have one....;) using a 5mm drill bit....I drilled the larger base.....and with a M5 bolt, I tapped the smaller top plate....you could also drill it thru and use a nut....