QAV250 impact-absorbing landing gear

thingiverse

They fit great and keep them locked in place, always pointing forward, due to the design's locking feature. The 10mm M3 bolt lines up perfectly with the landing gear hole on the frame when secured with a nylon locking nut, resulting in very secure attachments. However, I wasn't completely satisfied with their performance. They were prone to some impact and vibrations from light crashes, causing them to bounce or flex. Surprisingly, they have yet to break, even after repeated use, although those made of PLA didn't fare as well as the ones printed with ABS plastic. Looking at the pictures attached, you can see one that survived a significant crash and still functions perfectly. The impact caused minimal damage to it, leaving it useable for now. It can still compress and spring back completely. Another issue was encountered while printing the rounded bottom portion. Printing this area sideways often resulted in it curling up at the edges. This isn't particularly concerning, given that it's designed for friction against concrete or asphalt surfaces. I'm keeping an open mind to suggestions on how to improve these attachments further. If you have any ideas, feel free to share them with me!