lego auto gear box 2 speed

[Samqdf]

that's really neat, I am having trouble working out how you get the torque reaction to turn the arm though

[Userdaniel]

Thank's, you have some cool videos

[TheRustyHamster]

@Userdaniel Thanks.

[Userdaniel]

Hello, did you use my design or is it just coincidence?

[TheRustyHamster]

@Userdaniel yes it is a good design.

[pag101legolord1]

how long is it going to be 50cm long i mean the car