Comment by Rana on February 28, 2011 at 7:32pm

Your test setup is great but the way you mounted motors is neither contemrary nor it is much promising.

You require to change the quad frame for long run.

 

I wish you all the best for the flying !

Comment by dan on March 1, 2011 at 2:18am

Thank you Rana for your comment.

However to make most of it, could you please explain:

- what is wrong with the way the motors are mounted ? Is it the fact that 2 of them are at an angle (which is because all the 4 propellers are normally rotating and hence I need a different way of compensating from the induced yaw rotation) ? Or is it the mount itself ?

 

- why will I need to change the frame for the long run ? Is it vibrations or something else I'm ignoring ?

 

thanks,

dan

Developer Comment by Randy on March 1, 2011 at 7:49am

you don't need to mount the engines at an angle, you can just get pusher + puller props (ones that spin in opposite directions from each other) and then change some of the wires around on the engines so half of them also spin in the opposite direction.  then set it up so opposite propellers spin in the same direction as each other (i.e. so front and back go clock wise, left and right go counter clockwise) and the yaw from the engines will all negate each other.

Comment by dan on March 1, 2011 at 8:08am

I know, that's typically how "normal" quadcopters work. It's easier mechanically, but the pusher propellers are way too expensive, and hence I wanted to use only "normal" ones.

You obtain the same effect by mounting 2 of the motors at an angle, even though you loose some of their power for this...

Comment by Guil Magalhaes on June 10, 2011 at 12:50am

Very cool stuff! I must resume my .NET quad project....

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