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Australia, QLD, Brisbane
Joined Aug 2012
451 Posts
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twitchy servos
Hi guys
Big Bird II arrived yesterday just before I had to go to work. Only had enough time to find out that the charger doesn't work (email sent straight away) and that the heli made a "tsst, tsst, tsst" sound when running on the bench. Thought it might have been flybar strikes caused by slop in the blades, so I shimmed them without any noticable improvement. My thoughts then turned to unbalanced blades maybe having the same effect (strikes) but since I don't yet have fine scales I couldn't check it. Made a vid for analysis below. As can be seen, the flybar looks to be balanced and not hitting the blades.
Had a closer look this morning and discovered that the aile and elev servos have their own minds, and start twitching when the battery is plugged in. Happens even before binding with the TX. The noise I heard is obviously the servos twitching when the motor is running.
Is there an easy fix for this or do I need to send the heli back as a duffer? Sorry about the vid quality... took it on my #808 so couldn't see what I was filming ![]() Cheers Fin |
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The Netherlands, ZH, Rotterdam
Joined Aug 2012
66 Posts
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Camera is ok too, rinsed with clean water, dried with compressed air.
The camera is a 808#16 key chain cam with the B lens. There is a whole active newsgroup for this camera. http://www.rcgroups.com/forums/showthread.php?t=1777846 Regards |
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What next? flying over open fire?
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Australia, QLD, Brisbane
Joined Aug 2012
451 Posts
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- http://www.hobbyking.com/hobbyking/s...dProduct=14571 (frame) - http://www.hobbyking.com/hobbyking/s...dProduct=11884 (motor) - http://www.hobbyking.com/hobbyking/s...dProduct=15259 (pinion) - http://www.hobbyking.com/hobbyking/s...idProduct=4312 (ESC) - http://www.hobbyking.com/hobbyking/s...dProduct=14665 (battery) Gives you a BL with a difference: can lift 250g+ payload, and do 45+ kph. Plus - you still have a 'F45', and will qualify for this thread and Arrowshooters new one! Actually, the whole shebang above is only about 40 bucks dearer than the 'full upgrade kit' a few posts back. You know you want to, Flyor! Cheers John. |
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Joined Dec 2012
43 Posts
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http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html
Hi, its me again, I am having trouble deciding what batteries to go as an upgrade, does the above link will work on f45 as well? Can anyone give me a link on what is the best battery for the f45. Having troubles finding them here in the forum.....lots of info though but it makes me more confused....lol. |
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Australia, QLD, Brisbane
Joined Aug 2012
451 Posts
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http://www.hobbyking.com/hobbyking/s...dProduct=23820 Will require some minor mods to battery holder, but fits well otherwise and has right connectors. |
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Joined Dec 2012
43 Posts
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Germany, BW, Heubach
Joined Dec 2012
167 Posts
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You got a problem child there, Try moving the servo wires around, I had a problem something like that after rebuilding my 45 completely my tail was moving on its own, and I just moved the wire routing, and was all ok again, maybe getting a frequence from the electronics on pcb. Frank |
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