BEC circuit help

[Kenny]

You can get a second hand dx7 off ebay the price of a dx6i, there no point in a gyro, if the robot is wired and setup right ( wheels level etc with each other it should drive forward not go to one side)

[Danjr1]

the 4 motors are running at very slightly different speeds so ill see how the testing goes with a new radio set

[Danjr1]

The DX6i system works great but i do need help with the set up. At the moment its:

right stick forward = spins clockwise
right stick back = spins counter-clockwise
right stick left = forward
right stick right = backwards

im running the Elevon wing type mix which mixes the elevator and aileron function. reasoning for this being that the right stick controls these functions. anyone know how i can get forwards=forwards, left = spin left etc etc????? the robot is tank steering type.

thanks!!!!!!

[gizz]

Perhaps you should swap the 2 cables you plug into the 2 reciever channels to get the forward stick to either make the bot go forward and backward, if it goes the wrong way the servo reversing function might help.

[Danjr1]

will servo reversing screw with the servo mix?

[RogueTwoRobots]

By the sounds of things, you've got your cables in the correct way, but got one motor wired up backwards.

When you push the stick forward, look at the motor (or motors, if you've got 4-wheel drive) on the side that's going backwards and then simply switch round the wires that are connected to that motor. Then if you push the stick forward again, both motors should go forward.

Then check the spin direction; if you push the stick left and the robot turns to the right, just flick the servo reverse switch for that channel (on most transmitters, left/right should be channel 1). The servo reverse function won't mess with the servo mix, it'll just help to adjust it to the correct setting. You may have to adjust the trims though if there is any creeping when the stick is central.

[woody]

Sounds like 2 motors wired incorrectly and rotating the wrong direction.

As Jamie say's push the stick forward ..note the motors that are rotating the wrong direction and swap over the connections on the motor.

You can simplify it by having one side at a time plugged into the receiver.

[Danjr1]

All sorted! Swapped the polarity on one set of motors and swapped the esc plugs in the receiver. Thanks all!