Phatmat

Me and my friend have found two whipper snippers (got one semi-running, carbi got some fuel probs atm), and I am planning on putting one onto a custom RC car. So far I have decided to make it chain driven (as the motor, around 20cc, will shread the normal gears), and I will put around 12cm diameter pheumatic tyres on it.

Though this is still a theory car, I have had problems thinking of how to make the steering. The throttle will simply be a servo with a cable/rod that pulls the motor's accelerator cord, and I am hoping a normal servo will have the sufficiant power. Though, does anyone have suggestions or plans that may work for 12cm diameter pheumatic wheels? I was first thinking of a normal servo, like steering on a monster truck, but this car is going to go fast and needs to be robust ...

Also, any siggections on a brake? I am most likely going to use a 2 channel controller (well, I can use a 6 ch one from my heli, but 6 ch will just over do it).

thanks,
Matt.

drevil

My Feedback: (5)

I'd suggest posting this in the large scale forum, you'll get many more replies about stuff like this and I'm sure somebody can help you out with a steering servo large enough. If not, many guys use full sized car window motors.