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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, 01:58 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?

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, 03:54 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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Chris Boultinghouse
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