I'm just finishing my quad (wired up power lines and destroyed my receiver during tests today :( ) and have been looking how the IMU board should be oriented. I'm planning X configuration (to have free space for ultrasonic and camera on the front) and found some inconsistency. The comment in source code says "Frame orientation 45 deg to CCW, nose between two arms (front and right)". And according to the picture on the page http://code.google.com/p/arducopter/wiki/Quad_Frame_Assembly the nose is between front and left motor and IMU is heading to the left (CCW-rotating) motor. Why not to the front (CW-rotating) one?
Wouldn't be better to keep motors-IMU relationship she same as in + configuration - IMU heading to the front (CW-rotating) motor - to be able to switch between X and + just in software? Or am I missing something?
Thanks and have a nice weekend.
Replies
I'll fly it in + mode, so should I point my APM front to the front motor or should I put it 45 degrees CW to the front motor (between front and right motors)?
Is the same APM positioning used for both + and X modes or is it different?
Thank you,
Leonardo
direction is, like you said, to the front motor (CW-rotating)