Micro quadcopter landing gear

thingiverse

This is a landing gear setup I designed for my GEPRC Phantom. It fits 1103 motors, but will fit others with a 9mm distance/diameter across motor mount holes. It accommodates M2 screws. For the Phantom, I used M2x6 screws (it comes with M2x4 originially) as the 'foot' and the added plate are 2mm thick together. This mounts to the under side of the quads arm plate using the motor screws and holes to attack. I printed the leg in a TPU flexible filament and the plate in PLA. This has worked well so far and survived a few crashes. Your mileage may vary. If I run into breakage issues I may increase the top plate to 2mm from 1mm. To mount, remove your 2 motor mount screws from the under side of the arm. You will need to replace with M2 screws that are 2mm longer than the originals. Screw the new screws through the PLA plate and then add the TPU foot. Screw the screws into the motor mount holes. Since it is using TPU you can crank them down a little and this has helped keep motor screws tight. I have not tried, but this will likely scale to larger motors as well. You may have to enlarge the holes a bit after printing. The holes are set to be 2mm in diameter, but my Ender3 prints required a little enlarging on the screw holes.