Esky Digital servo twitching???

[poorstudent25]

Hi All,

Im new to RC Heli's and this website...hopefully you experienced guys can help me as to why my heli now no longer works!

I have an Esky Honey Bee FP V2. All was working perfectly as of stock....I have since upgraded the whole rotor head to the Xtreme metal products, which looks cool, more robust and continued to work perfectly.

I broke one of the servos so obviously went to replace it...the replacement was connected and was making an awful noise and broke within 15 minutes of flying...i thought it was a dodgy servo so bought another and now as soon as I plug in the new servo (channel 1 - left and right cyclic) and then turn on the receiver the new servo not only doesnt work but the other perfect working servo (channel 2 - up and down cyclic) now shivers as if there is some interference. When I unplug the new servo the shivering stops and the up and down cyclic works perfectly.

I have taken the new servo apart and the gears look in good order. I have also switched the good servo from channel 2 into channel 1 and by using left and right on the receiver the up and down cyclic still works perfectly however as soon as I plug in the new servo the shivering starts again.

Is there any reason for this that you know of? have I happened to get a dodgy servo again or is there something else causing the servos to not function correctly? Could the receiver block be faulty or does switching the good servo from channel 2 into chennel 1 prove it's not the received block?

Any help would be greatly appreciated as I'm getting really frustrated that my rc heli no longer can fly ha ha!!!

[Chris Boughton]

it sounds like a dodgy rx, has it been in a crash? I had the same sort of prob ages ago and bought a new rx an it worked great!!

If not are you running more than 6 volts to the servos, are you using a bec if so the bec could be faulty!!

[barryorbik]

The fact that the fault did not transfer to ch1 with the servo from ch2 seems to indicate it may be just the new servo at fault. I assume you are using an ESKY radio, if so these have always been prone to problems and can suffer from noisy gimbals, so it could also be the transmitter but from the tests you have done so far, my money is on a faulty new servo. What happens if you plug just the new servo into ch2 - does it still jitter? - if not then look at the receiver or transmitter. I assume you have a fully charged battery in the heli because a low battery voltage can also cause some strange faults.

[poorstudent25]

Hi Heliguy Chris,

Thanks for your response...being new to the terminology used with RC Heli's I apologise for my lack of knowledge....the heli has training gear on it so I wouldnt say it's been in any huge crashes but it has been in lots of minor ones ha ha! I guess by an Rx you mean the block that the servos are plugged into yes? I have checked that out and a replacement is approximately £30 hence why that was the part I was reluctant to replace first maybe thats the next thing to try!

In terms of the volts to the servos I wouldnt even know how to check....again an amateur ha ha!

[poorstudent25]

The fact that the fault did not transfer to ch1 with the servo from ch2 seems to indicate it may be just the new servo at fault. I assume you are using an ESKY radio, if so these have always been prone to problems and can suffer from noisy gimbals, so it could also be the transmitter but from the tests you have done so far, my money is on a faulty new servo. What happens if you plug just the new servo into ch2 - does it still jitter? - if not then look at the receiver or transmitter. I assume you have a fully charged battery in the heli because a low battery voltage can also cause some strange faults.

Hi Barryorbik,

Thanks for response...I am using an Esky radio yes....the one that comes with the Honey Bee as standard. If I put the new servo into channel 2 with the current working servo in channel 1 then yes it jitters....if I pull out the current working servo it doesnt jitter but just doesnt work when using the left/right cyclic controll stick...basically the jitters always happen when the new servo is plugged in along with the current servo no matter what channels around they are!!!

Battery is fully charged yes!!

[Chris Boughton]

If you fly in a club or try and find an experienced pilot to help,
it can be bit of a bummer trying to find the problem and sumtimes its just inpossible to spot!!
Is you radio (tx) 2.4ghz or 35mh?
And yes rx is a receiver!

[poorstudent25]

If you fly in a club or try and find an experienced pilot to help,
it can be bit of a bummer trying to find the problem and sumtimes its just inpossible to spot!!
Is you radio (tx) 2.4ghz or 35mh?
And yes rx is a receiver!

Yeah unfortunately for me I dont know any other experienced pilots and there are no local clubs around (that I know of anyway).

The radio is a 2.4ghz!

[Chris Boughton]

Umm tht is a bummer,
have you got any other helis? so you could try the servos in another heli? If the servos work in a diffrent heli/receiver then it could be the rx ,tx esc. I could be a faulty esc were the regulator inside it (bec) is supplying the receiver with more than 6vlots or less were a rx might behave strangly as 2.4ghz rx need to have a good voltage as they have a threshold of 3.5v!