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how to built a rid to make the wheel steer

7 REPLIES 7
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Message 1 of 8
Anonymous
1099 Views, 7 Replies

how to built a rid to make the wheel steer

Hi guys, 

I'm working on a truck rig, I'm been able to make the wheel follow the tuck and move in the right way, but I can't figure it out how to make them steer, I tried many time but without results or breaking the actual rig. I put some picture bellow to help you bettere understand, there is an "easy" way to solve this?

 

metem_0-1599751813503.png

metem_1-1599751851904.png

 

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7 REPLIES 7
Message 2 of 8
mcw0
in reply to: Anonymous

I'm seeing a wheel orient group that is orient constrained to something.  Might I suggest parenting the wheel orient groups under your truck body.  This will orient all the wheels to the truck without the need of an orient constraint.  Now you can use the wheel orient group as your steering node.  Orient constrain that to your steering controller.

Message 3 of 8
Anonymous
in reply to: mcw0

the wheels stops working when parents to the body truck, I would like to upload my scene here but I don't know why the forum don't let me do it 

Message 4 of 8
mcw0
in reply to: Anonymous

What does "stops working" mean?  Do they no longer rotate?

 

Oh well, no matter.  If that is causing problems, then try this.  Group the wheels to themselves.  And center the pivot of the new group.  So now you have the orient group, then the new group.  And then your wheels.  Control the new group with your steering control.

Message 5 of 8
Anonymous
in reply to: mcw0

Yes, they stop rotating, by the way here's my outliner, I group the wheel,  select steering_wheel_ctrl then wheel_orient_grp, costrien orient, but nothing happen, I start to hate rig 

Message 6 of 8
mcw0
in reply to: Anonymous

"wheel_rotate_grp" is the node that rotates the wheels when the truck is in motion, correct?  And "wheel_orient_grp", what is that orient constrained to?  I would have expected "wheel_orient_grp" to handle the translation as well, instead of "wheel_rotate_grp".  What are you using to control the rotation of the wheels?  An expression?  Did parenting break the rotation because you were no longer getting translation values from the "wheel_rotate_grp"?

 

Usually, the "wheel_orient_grp" will be parented under the truck.  And the "wheel_rotate_grp" can use the truck's translation to calculate the degrees of rotation.  Then for steering, you just need a group above "wheel_rotate_grp" to be able to steer.

 

With what you currently have, if everything is working except for the steering, then just place a group above "wheel_rotate_grp" and call it "wheel_steering_grp".  Connect that to your steering control.

Message 7 of 8
lobo_alcalino
in reply to: Anonymous

Just use 'Advanced Skeleton' plugin

Message 8 of 8
mcw0
in reply to: lobo_alcalino

That would defeat the purpose of learning to do this yourself.  🙂

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