Ducky EDF Quad - Motor Mounts and Second Test

I had the EDFs mounted to the frame with zip ties for the first test.  That proved a bit unstable.  I also had the problem of the motor housings sticking down lower than the rest of the quad, which posted a threat to them on landing.

Talon motor mount

So, I decided to kill two birds with one stone by making some EDF mount brackets that extended vertically below the bottom of the motor housings.  The Turnigy Talon frame I used included these aluminum "T" mounts, intended to be mounted horizontally at the end of the tubular arms to allow you to mount the motor on top.  I simply turned them 90 degrees so that the flat face was vertical to align them with one of the two flanges protruding from the side of the EDF housings.

To mount the EDF flanges to them, I fabricated a mounting bracket to use as a clamp.  I used an old license plate frame that I cut into four equal length parts and drilled matching holes in:

Four mounts cut from a discarded license plate frame

Drilled and mounted to EDF with motor bracket

Mounted to quadcopter frame

I filmed a new test flight with the modifications.  I wasn't really thinking about the fact that I was filming during the flight, or I would have put more effort into keeping it closer to me.  Overall, it flies really well.  It has a slight left yawing tendency, but I suspect that is because I haven't really done anything to precision align the EDFs.  (I just eyeballed them and clamped them down.) 

I avoided using 100% power to see how it did on flight time.  With the flying you see it used about 70% of the battery life in just over 5 minutes.  So, not bad!