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I move one hub of the front axle to get the curve. Ackermann steering is impractical here, since it's likely that your axle will need to have something on it, i.e. a wingnut for braking. It's probably simpler just to only move one axle. I'm unsure what you mean by direction, but it should be pointe...

Any possible answers?

How long of of a rod and string is needed to travel the 8 meters with 3 inch diameter wheels?

How does it work? Do you just used a single fixed axle and adjust it for each run or do you set up the wheels as seen in Ackermann steering and adjust there? Also, do both of the axles need to turn or just the front? What direction should the vehicle be facing at the beginning of the run?

shrewdPanther46 wrote:there isnt a fixed axle in ackermann connected to the wheels iirc

Then where do I put my threaded rod? The other axle contains the wrapped string attached to the mousetrap.

How do I incorporate Ackermann steering into my vehicle on the same pair of wheels that will carry the threaded rod and wingnut?

I am currently using a 40 cm rod and I feel the vehicle is going too slow. Would a 30 or 20 cm rod be enough to cover a distance of 11m?

Are there any benefits for using two mousetraps instead of one? If two is better, should they be oriented side to side or vertically to each other?