Question by joostbos · Jul 06, 2018 at 11:01 AM · rotation rigidbody joints

Rotate object using off-center handle

I am trying to rotate a cylinder by moving a handle that is attached to it at the edge. Basically like a wheel of fortune where you use one of the nails to turn the wheel.

I have found tutorials on making a wheel of fortune, but they all work in 2D and use 2D joints, my scene is in 3D.

I have the base object, gave it a rigidbody with a high mass and not use gravity. The wheel itself is a cylinder with mass of 0, no gravity and a configurable joint connecting it to the base. The configurable joint only allows rotaion along the y-axis. This works if I rotate the cylinder manually in the editor at runtime. The wheel turns.

Now I have another cylinder that is the handle. It is the child of the cylinder and it also has a rigidbody with mass 0 and no gravity. I would expect that I need to give the handle a fixed joint to the wheel and then if I move the handle the wheel will rotate to follow the handle. But it does not. I can not move the handle.

How should I connect the handle to the wheel to make the wheel spin when I move the handle? Should I use a different kind of joint?

Thanks!

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