Remixed from a couple designs that I can no longer locate. If it is your design, please comment/link, and I'll attribute. Not the cleanest design, but it prints well in ABS or PETG. Version 2 includes stronger legs, but weighs less overall, and does not require support to print. The bottom plate is notched out to accept the M3 bolt heads on a QAV210 (or knockoff). Don't forget to scale up by .8% if printing in ABS.