This is a collection of objects for mounting in the camera hot-shoe. It is optimized for a Lumix G series camera which use a little latching foot in the front to retain the hotshoe cap, however the should work in all cameras if the little foot is removed.
Vsight: make a simple notch sight to assist in aiming. Also caps the hot-shoe. I originally made an exact replacement for the OEM cap, but why use that when the V sight is more useful?
Picatinny (Modifiied): Allows the use of Picatinny rail compatible accessories like Red-Dot sights. Requires the use of 2 "Wedge" pieces and a M2x20 socket head screew and M2 nut to secure to hotshoe. Very secure when tightened, the 1.5mm hex wrench also stows inside the object. The modified rail has trapezoidal recoil slots which allows it to be printed vertically w/o supports (at 0.1mm or less) while still accepting all common Picatinny rail mounts sights, which mostly (always?) use a 4mm bolt in those slots. The red dot sight pictured is this one: http://a.co/0aseSTo - it seemed a little lighter than some others, but maybe more snag prone.
I found it it quite easy to accurately track fast moving ducks in flight with that sight, as opposed to the 800mm equivalent view through the lens.
If the latching foot is not desired simple clip off.
I used eSun ePC which is strong, resilient and temperature resistant. If you try to print the Picatinny rail at 0.2mm it will fail.