[HELP] RC Car with Two Motors

[Commander Smith]

Hi!

I know that these "I don't know what to build" topics are kind of annoying, but I have no idea how to build an r/c car with functional steering. I want to have it be 2wd.

Thanks!

[BrianZ]

Use the Power Functions servo motor for the steering. It's pretty sweet.

[Alasdair Ryan]

Here is a whole threed about steering setups.

[Commander Smith]

Thx BrianZ, but all I have are two L-motors.

[Hrafn]

Thx BrianZ, but all I have are two L-motors.

Are you doing rear or front wheel drive? Rear will probably be easier - that way each axle only needs to accommodate one function.

The three simplest, common steering setups (all using rack-and-pinion steering) are

1) servo plus the 'train remote'

2) M-motor with return to center (using the 'hockey spring' or rubber bands)

3) M-motor geared down 9:1, including a clutch gear (the white 24 tooth ones) to prevent the motor from stalling

Either of the M-motor designs should work with an L-motor. Return-to-center is good for fast vehicles but limits you to steering all the way left, all the way right, or straight ahead. A geared down M-motor (or L-motor) is slower but offers more control.

[Commander Smith]

Hi All

I'm not sure how to delete a topic. I thought I couldn't incorporate those two L-motors on my 8043 b-model, but I did (with a 1:1 gear ratio it's really fast).

Thanks for all the answers.