I Broke my origional frame during firs 3d flight and didnt like the idea of relacing the whole thing because one arm broke. Looked around and didnt like the printable frams i found so iu went ahead and designed my own. This is frame 2.4 as i have went through many designs. Still working on it and have included source file for editing if you want. No re-sail or distribution without permission form me and me alone.10- 3x16mm screws Hold frame and arms. 4- 3x12 or 3x10. Hold in acc and gyro. 8- 3mm nuts (locking is best) 8 or 16- 3mm washers