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10-13-2005 11:38 PM  12 years agoPost 1
al_b

rrApprentice

www.waterfoothelis.c om, Scotland

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I have the usual Futaba S3107 servos on my X-3D. Is it just me or does everybody have quite a bit of play between the servo arm and the servo link pin?

It seems to really affect the play in the whole head. Has anybody got a good method for reducing this?

Al.

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10-13-2005 11:48 PM  12 years agoPost 2
Micro-Maniac

rrElite Veteran

Pasco,Washington Formerly: Captain Chaos

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Saying the servo arm holes are too large of diameter for the linkage pins? Duzi servo links might help. I have some on order to remedy play in the links themselves. They nut&bolt to the servo arms so that might help you.

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10-14-2005 05:47 AM  12 years agoPost 3
johnny b

rrApprentice

Central Coast, CA

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I would imagine on this small a micro, that's a big issue, especially slop in the servo arm.

The used H2 I'm rebuilding had slop in its servo arm, and the servo arm wasn't set up parallel as per Eric L's site. I looked up the seller's posts here in this forum, and he was trying to solve tail wag issues. I imagine these two things contributed, plus the tail drive shaft conical is worn out, and the back conicals have a "click-click" sound to them because some of the gears have what looks like excess plastic on them. So I figure I'm pulling all the conicals and putting new ones.

Try some Hitec servo arms or something similar. Mine are all snug, but allow free movement.

Being a noob, I'm taking Eric L's advice to heart, that these little micros have to be near 100% accurate in set-up in order to fly well. What would be negligible items on a larger heli are magnified in importance due to how small this heli is in size.

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10-14-2005 11:18 PM  12 years agoPost 4
al_b

rrApprentice

www.waterfoothelis.c om, Scotland

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Chaos, yup you summed it up in one. The servo arm holes are too big for the pins.

I don't know if I want to spend another $35 on it.

Any other suggestions? I thought about filling and re-drilling, but I don't have a drill bit small enough.

Is it only me that's got this issue?

Al.

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10-14-2005 11:20 PM  12 years agoPost 5
Micro-Maniac

rrElite Veteran

Pasco,Washington Formerly: Captain Chaos

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See if Hitech or some other arms will fit your Futaba servos then.

But you might try a small bolt instead of the pin and see how it works. 0-80 or 0-72 might do it. Probably won't be able to use the pins again afterwards.

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10-17-2005 09:34 AM  12 years agoPost 6
Saob

rrApprentice

Stood behind you

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The Hitec arms do fit the micro futabas they are snug but they will fit

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10-23-2005 10:58 PM  12 years agoPost 7
Patanjali

rrNovice

Stockholm, Sweden

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what about glueing the holes with CA and drilling new ones with a sub-millimeter driller (if available)?

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