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Heli-Max › Tiny Socket Wrench for Novus Heli Linkage Balls...
08-12-2010 05:30 AM  7 years agoPost 1
heli_headcase

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Hovering around Atlanta

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I'm a stickler for using the correct tools when servicing any mechanical device, heli's in particular.

I've been playing with a Novus 125 CP incorporating the TAGS electronics and found myself faced with wanting to remove a few of the balls as used on the flybar control lever and swash. But what wrench fits the hex on those things? And with the factory-applied threadlocker being so secure there's a 95% chance of twisting the screw threads in half while trying to remove the part.

Here's my answer, a very affordable alternative to buying some hard-to-find 1/16" socket driver:

Strangely enough, the ball's hex isn't a 'regular' metric size, being that it's 1.6mm nominal. But this is an exact match for 1/16" (.0625in), a size used for the hex key in 6-32 set screws. Perfect!

The close proximity of heat-sensitive components makes the direct application of even a micro torch flame too risky when wanting to soften the threadlocking compound. So in this case, I heat the socket with said torch and let it transfer the heat to the screw in a very safe manner. It may require a couple heating cycles to soften the locker but it's obvious when it works -- the screw slowly backs out of the threaded hole with no abrupt torque change.

I've been unfortunate to break two screws so far, prior to my invention, one in the feathering spindle and one ball in the opposite side of the pictured flybar. A tiny, heated soldering iron tip pressed against the spindle screw may have transferred enough heat for safe removal but I'm not so sure I could have missed melting the plastic grip. Heating a Phillips screw driver is safer but the heat needed would have destroyed the temper of the driver's steel. Will have to think up a new and better plan should removal of that tiny screw be needed in the future.

Just thought I'd share.

Oh, here's a short and mostly out-of-frame video of my N125's first flight. It's flying VERY nice!

Watch at YouTube


HHC

So many heli's - too little time...

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08-12-2010 05:48 PM  7 years agoPost 2
frebou

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Montreal / Canada

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very smooth, the cap-cam need to be a bit higher though

BEAM - Beautifully Engineered Action Machine

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08-12-2010 07:23 PM  7 years agoPost 3
heli_headcase

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Hovering around Atlanta

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the cap-cam need to be a bit higher though
Yeah but you don't know until after the playback. I need to construct a basic window frame sports finder that is attached to the hat brim and is aligned with the camera's view point. Make it from wire and let it sit right in front of my field of view. With some experimentation I can be sure that if the subject is within the frame, it's being seen by the camera.

This isn't the first time this camera has been used and I have done much better with it. No need to guess when there are ways of guaranteeing success.


HHC

So many heli's - too little time...

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08-14-2010 02:53 AM  7 years agoPost 4
heli_headcase

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Hovering around Atlanta

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Another Flight...
I performed a full-charge flight as the light was fading this evening. Warning: I still can't aim my Hat-Cam correctly but the in-frame coverage is much better than the video posted above.

Watch at YouTube


HHC

So many heli's - too little time...

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Heli-Max › Tiny Socket Wrench for Novus Heli Linkage Balls...
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