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300X Blade 300X Helicopters Information and Help


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  • 1 Post By JustPlaneChris
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Old 09-04-2018, 12:58 PM   #1 (permalink)
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Default Main Grip ball link - threads not tight, glue reccomendation?

I pulled out my old 300x that's been in the repair bay since I broke a blade grip ball arm flying under a tree...

I got new blade grips and when I went to put the ball in one of them it seems that it never hits a tight stop like the original one, perhaps the threads on the ball are too thin, or the grip hole was a hair to loose.

It seems snug, but I am afraid to continue to tighten it and completely strip the threads, is it ok to use CA glue, or loctite thread locker in this hole to tighten it up?

I was thinking the LOCTITE® SUPER GLUE ULTRA GEL CONTROL™
Super Glue ULTRA Gel Control from Loctite Adhesives

It seemed like the rubberized / shock resistant formula would be ideal but reading more it says "not recommend for Polyethylene, polypropylene, PTFE, silicone rubber, polystyrene foams or glass."

But I am not sure what type of plastic these blade grips are.
I've also learned that loctite thread locker says not to use on thermoplastics where stress cracking could develop...

I think I could fly it the way it is, but I just don't like the fact that the ball did not get a grip hard enough to have a full stop point when torqued down.
I'm tempted to put in 2-3 horse hairs from a violin bow for a friction shim.

I don't want to want another 3-4 weeks for another set of grips, just to find they will have the same problem anyway.

Can anyone recommend something here?
The loctite plastic bonding system?
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Old 09-04-2018, 02:54 PM   #2 (permalink)
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I just use regular old CA (super glue) for threads in plastic. Do not use any kind of actual loctite (thread locker) on plastic.
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