Loss of throttle

[milks]

ello


not sure if there's a better forum for my q, but I'm definately a beginner so here goes...

I've recently lost power to the throttle of my buzzfly (walkera 4#3), it'll currently only generate enough lift to bounce around within the range of ground effect when fully charged.

Now I know these things are known for their short motor life, but I don't know if this is a sign it is failing, would it gradually degrade or fail abruptly? I think I've probably been deep discharing the battery also, might this be the cause given I'm only 15-20 charges in?

Anything else I should consider?

TIA

[terryk2000]

I think a motor failure would be pretty much evident right away...seems to me that over discharging the battery is the problem.

[robgt]

I think it will be one or both of those problems.
The motors don't last that long on them - but you can extend their life quite a bit by fittnig the heatsinks to them.

Try another battery on it if possible to rule that out first?

Cheers,
Rob

[milks]

could the effects of that kick in quickly? It went from seemingly normal operation to not getting off the ground on the next charge. Though I guess maybe you've had the good sense not to try for yourself

[swampy]

Hi Milks,
I'm having the same bother with my CX2, ruled out the lipo packs, as I have two, and its the same on both, leaning towards the motors being the culprits, next move is to swap 'em for Extreme motors, see if that cures the little bugger

[milks]

thanks again for the replies


aaarrgh!

well I haven't posted for a while as I've been troubleshooting, and it has been quite a convoluted affair:

Swapped out the main motor and it flew as it should for one flight. The following flight however and it was back to bobbing around within ground effect.

A little later and I had both main and tail motors fail completely. I semi fixed this by pushing the individual connecters on the rx in further (a known weakness with this model as I understand)

Heli now seemingly has the power to lift off properly but doesn't keep orientation as if the gyro is faulty. Can spin quite wildly. At the same time it has developed a loose connection about the battery clip. On connecting the battery the light cuts in and out and can cut out again on landing.


Well I have my plate full with this one at the moment. My best guess is the original loss of power was caused by a poor motor connection to the rx and that both the rx cutting out and the faulty gyro are caused by my deep discharging of the battery.

Does anyone have experience of buying cheap chinese lipo's from ebay? The price of one official battery buys me four or five on ebay, I'm just aware of these things bursting into flames!!

Any help appreciated, I have a replacement battery on the way so will post again once I've been able to rule that in/out

[Holst]

I bought my batterys from ebay and when I removed the label they were exactly the same as the walkera supplied cells.

I would think about changing to micro deans conectors for the batterys as they are easyer to use and more reliable.

Low battery voltage can cause the gyro to play up. You also need to make sure that your trim is in the right position when you turn on the heli. If the trim is in the wrong position then it will affect the speed the heli turns and where it centres.

If your good at soldering it might be an idea to solder all the connectors into the receiver. Ive not had any problems with mine but thats what I will do if it starts playing up.