ORIGINAL: bjethier
<div style=''margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(255, 255, 255); font-family: Arial; font-size: 12px; ''>Hey Peter, <div>Back from work, but a little late and don't feel like getting into the old heli tonight. Update is that I got the rotors working properly I think by reversing wires on the 3in1. I tested with the shell off in garage and found that I had an lots of vibration. Didn't try lifting off or anything. Thought main shaft may be bent. It's an extreme shaft. I did replace the upper rotors with some upgrades I got off another heli I bought for parts. Maybe that caused the vibrating. I left old ones on lower. </div><div>
</div><div>I think the idea of a movie is good. I'll try doing that before I tear it all down and start replacing stuff. Maybe you'll see something. Another day,
Hey again Butch,
Anytime mate! A movie would be good - from before spin-up for 2 or 3 seconds should be enough - with sound. To check if your inner shaft has bent, remove and roll on glass or a mirror or something (such as a desktop with the top-head stuck over the edge). If will show up more obviously if rolled on a known flat surface.........[sm=wink_smile.gif]
Peter[sm=shades_smile.gif]
P.S. You have to reinstall the fuse before proper flight though so the CG is correct - but a benchtest is OK without it!
