He is at it again! 1:50 Dozer Conversion

[john]

ya your right, i had the idea of one soleniod sliding a pin either left or right to lock into the drive sprocket to positive lock, but it would not be as smooth as the two motors, thanks again, i dont know many people on here if i need a hand with the esc can i ask apon you?

[SmallHaul]

Jim,
You could always use the control board out of a cheap but powerful servo to use as a speed controller with smooth forward to reverse action.

You would have to add resisters to the servo board to give you "center" just like converting one for continuous rotation.

i am sure the control board in this servo could feed up to 2 amps to a motor and i doubt you would even draw 2 amps.

http://www.hobbyking.com/hobbyking/s...Fc07OgodjU8Alg