I need to join a "10 step" program - MULTIROTORS ANONYMOUS.
I am in the process of building a small (9" prop size) folding quad, but I wanted to try out some ideas.
So I built this 10" prop foldable model as a "test bed". The diagonal is a full 500 mm, and as you can see, it folds down to shoebox size.
6 channel reciever,
KEDA 28-15 1050KV motors
10" APC props
Cheap HobbyWing 40A ESCs
3 Cell 3850 mAH battery
The frame has a few plastic parts from THINGIVERSE (3D printed by me) and arms made from 3/8" X 1/2" AL channel with 6mm square AL tubing (in the channel) for extra stiffness. The body is simply 2 pieces of 3/8 AL channel with "expanded AL (.060") forming the top and bottom of the body. The legs are short pieces of 6mm square AL tubing. The whole thing (with battery) weighs 3.2lbs.
I have had it a few feet off the ground and it appears that it wants to fly. I'll find out in earnest tomorrow.