Help with animating car wheel rotation and turning

[Anonymous]

So I'm still new to maya and for an animations class, we needed to make our car wheels rotate and turn, and have than constrain it to a motion path. I got the rotation and turning wheel working fine if it stays on world origin but when I move the car than use the steering control to turn the wheels, it doesn't turn correctly. I am not sure what is the issue still I redid everything a few times and froze before doing so.

Link for maya file since it won't let me attach:

https://drive.google.com/file/d/1vmH4QfjlewfU22rf5K3heW6UmNJcIeRP/view?usp=sharing

I've attached two screenshots to show what I mean. One before moving the car and one after.

[Anonymous]

Hi

Link not allowed for me. Pls zip the maya file, and attach here. we will see

[osidedan]

Hello! 

You can fix this easily by having the wheel under a group, and set your controller to drive the Y rotation of the group instead of the wheel directly. Then the Z rotation of the wheel will behave as you would expect. I'm attaching a file where I did that exact thing to the front left wheel. Hope it helps! Let me know if you need more info.

ps the reason this works, is because all transformations on an object (rotation, scale, translation) are RELATIVE to their parent. So in this instance, we have the parent group do the steering, then the wheel rotates on Z RELATIVE to the Y rotation of the parent group.