Spektrum DX6 Help for R2D2

[J-ROCK]

Hi all,
First of all I am new to all of this R/C stuff, so please bare with me. I don't know any of the proper terminology either.

Also, I am using the Spektrum DX6 to control a robot not an airplane or heli. (I've made a full size R2D2 robot from the Star Wars movies). I hope someone can help me out with a few minor issues I am having.

Here is my set-up:
I want each of the main sticks (Throtle and Elevation? I think they're called?) to control a sliding potentiometer with a mechanical linkage. Each stick will control the forward, stop, and reverse of a potentiometer which drives a control board which drives a motor/drive wheel (One in each foot). I want to be able to set the servo with mechanical linkage, to have the potentiometer in the stop/off/middle position and not have the servo move at all until I touch the stick. I want to be able to power up power down TX or RX first it shouldn't matter.

Here is my problem:
I set the servo where I want it to be when the power is off and I have done the"Binding process". When I power the receiver, the servo "twiches". One of the two twitches slightly but remains in the same position. The other moves ahead a little bit. So each time I power up the receiver, it moves forward a little each time. This is no good since each time I power up, my motor would start to roll forward.
I have tried the "Binding" process a few times and it still performs this way.

Anyone have any input? Did I explain everything alright? Sorry I'm such an idiot with this stuff and that I don't know any of the proper names for things...

[Dynamic Man]

I may not understand your problem but here is how to set up your servos

Power up your system with the arms off, the servos now will be in the center position, now place your arms on the servos, this will calibrate where your servos should be to match your stick position.

After this make sure you always turn the transmitter on first than the receiver.

If you really have to turn off your transmitter you have to set the failsafe positions . Failsafe is set at the binding time. where ever you have the sticks set at binding will be where they go when they lose signal.

If you still get start up jitters you may need to turn on your power to the motors after you turn on your radio system. you will always get a search for the start up position for a split second after that, the servos should follow the stick position exactly.

Hope this helps
Fred

[Psikelly]

Like Dman says, transmitter on then reciever...reciever off then transmitter off.. Part of your problem may also be the spektrum servos.Theyre really quite crappy. Theres a lot of posts on the Spek servos crapping out after only a couple hours. Id suggest going with Eflite S75 or Hitec hs55. I personally like the Hitec servos.

I noticed you said that you want to be able to power up or down the TX or RX in any sequence, that it shouldnt matter. But it does, you need to power up the TX 1st b4 starting and always power it down last after shutting down the RX. Thats probly 1 of the main causes of your servo jitters right there.