After a couple of flights with the UAir R10 quadcopter you want to record your own flights / crashes. I own a compact camera but it has a lens sticking out when turned on. A crash could easily damage the front lens so I decided to work with a more compact device: my smartphone.
I could simply mount the phone to the R10 camera mount, but this leaves the screen unprotected. Therefore I decided to make my own phone protector out of an old air mail envelope.
On the forums I’ve read a some posts about prop savers and cutting the shaft down in order to use them properly. It turned out that with my prop savers, cutting down the shaft is unnecessary. I have used one of the rings which came with the propeller.