Rigging a Wheel

[dunkelzahn]

Hmm, better post your expressions next time, makes sense for the people helping you. I´m a bit busy right now, so I can´t get into details, jsut the rough basics. I´d build a joint lying on the rotation axis of your wheel and add another joint onto that. This is the joint that controls your wheel and can be rotated.

Now you got two ways to deal with your wheel:

First just create an expression that only links one translation value to one rotation value, something like joint.translateY = joint.rotateX * 360. Now your wheel rotates 360 degrees when your character moves one unit. When your character jumps up, the wheel wont move, only when he moves front or back.

The second way is to simply limit your joints rotation to one axis. this is doen the attribute editor. This is a rather rough approach and invites future errors, so I´d prefer a good clean script.

Hpoe that helped, otherwise post your expression and a screenshot of your character to receive more detailed help.

Cheers

Chris

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