NASA is providing a half-million-dollar prize for Phase 1 of a Centennial Challenge that aims to develop technology to help unmanned aircraft operate safely in the national airspace system, the…Continue
After a crash, two of the arms on my 3DR Hex shifted slightly. Enough that the props overlapped. I didn't notice it for a while, but on a subsequent flight, they prop tips touched. The hex didn't crash but the noise it made certainly got my attention.
My solution was to add more sonar mounting brackets to beef up the arm placements. It also gave me more places to mount stuff. (Copter is upside-down in the photo).…Continue
I seem to be removing my props often, and I worry that my hand holding the motor while I torque the collett on or off is not strong enough and I certainly don't want to use a steel tool like a Channel Lock. So, I use a small plumbers strap wrench, pictured below.
This one is overkill because it is made for, well,…Continue