Coaxial Multi-Rotor Arm -- Version 1

thingiverse

Design is underway, and things are about to change. I'm building a simple coaxial motor mount for a multirotor using two dirt-cheap 2212 motors and other low-cost components to create a reliable arm that can be used in Y-6, X-8, or other configurations. The carbon fiber arm has an outside diameter of 10mm, and it's 500mm long. I'm also attaching a strip of ws2812b LEDs on the inside of the motor housing and using translucent grey ABS for the light to pass through. Check out this test video: https://youtu.be/JUzf5DrLNR4. In this version, the motor mounts are glued to the body, but we'll see how later versions go. There are some concerns about wall thickness at the center - a potential stress point that could cause layer separation. The LED mountings also need to be lined up better. Here's a completed build test video: https://youtu.be/70FEkei7B7I. Next, I'll test with propellers. I'll continue to update as I print and test, so stay tuned for more information. Suggestions are always welcome!