"Cam"
Key Veteran
Location: UK
My Posts This: Topic Forum | For me the problem was not about the frame failing, but for the frame deforming, as with any model heli frame. Carbon can be broken with a fairly small force if you bend it enough around a small enough radius. Try to break it just stretching it is a different matter.
The frame will only fail in a crash, unless you have a very thin section holding the battery and pull 40g turns, as a very loose example.
Otherwise frame deformation can upset the gear mesh, damage your bearings, cause resonance to start and stop, loosen bolts and even stall your servos if a double lever is brought slightly towards or flexed away from a servo.
And people blame crashes on glitches and mysteries… wonder why their blades go in and out of track, try desperately to re-oil their one-way bearings, and other wonderful problems.
I used to think the pinion modulus or motor torque or maybe even the frame flexing was eating my main gears, now I’m wondering if it’s heat from the motor heating up the pinion and warming the main gear enough to soften it. A long motor shaft should help with pinion cooling...
Have fun designing your helicopter! Lots of math 
DSX9
EMax V2
http://runryder.com/helicopter/gallery/37491/ |
