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Blades produce strange grinding sound
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Beef Noodles
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July 22, 2012 - 3:18 am

I got my syma s107g last thursday, and it flew great. Yesterday though I was flying it around and it hit the edge of a doorway I was trying to go through, I picked it up and tried to refly but the blades couldn't spin fast enough, and it sounded like the blades were lightly snapping against each other, but they appear like they were perfectly straight. I took apart the top of the main shaft like suggested in Supernova's main shaft repair video guide, and it seemed the pieces looked perfectly healthy, and I had a hell of a time putting those upper screws in to secure the upper rotors (should have mentioned to just loosen them enough to get it off).

 

Here is a video I made of it: http://www.flickr.com/photos/6.....hotostream

Anyway I looked at the gears, it doesn't seem like there are any missing teeth, but I noticed a very small amount of wear on them. I ordered a new gear set, but I just wanted to make sure this was only a gear problem, it'd be ashame if I only had this thing to fly for a day. I don't know if I'd be able to repair the motor or anything else if that's the problem.

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Syma Freak
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July 22, 2012 - 11:54 am
Member Since: November 26, 2010
Forum Posts: 1430
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Does the main shaft look bent at all? Does sound like gears are the problem,also check for hairs that might be caught up within the gears and props- you could try putting a tiny amount of Dupont silicone on the gears or really thin oil used more for electric trains, but only a tiny drop!!

There are a few posts on gears,here is one thread .. Gears

"Fly like a butterfly sting like a Syma" http://syma107.com

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