Parenting bones in different rigs causes entire child rig to move

Support Animation and Rigging
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1

Hi there, I’m really new to Blender and am working on a basic animation where one character’s hand needs to follow another character’s hand. However when I try to parent the hand bones the entire child rig ends up moving along with the parent instead of just the hand.

I’ve tried creating a childof constraint but this gives the same results.

I’ve been through instructional video after video trying to figure out what I’m doing wrong and none it seems to help. And don’t seem to be able to find any posts pertaining to the issue.

What am I doing wrong here?

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Make sure that you in pose mode and select bone you need to constraint. Both armatures must be in pose mode.

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Thanks for the response. This clued me into something I didn’t realize, namely that objects exist in different modes from each other.

Let me add some details I probably should have in the OP, my apologies for wording the issue wrong.

I’ve already animated one rig, and I’m trying to get the hand to inherit the motion of the other rig.
So example Character A has their hand on character B’s shoulder. Character B’s waist falls to the ground and Character A’s hand is supposed to follow that motion for a time. Ideally being locked to the movement of Character B’s shoulder.

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It depends how rigged your character arms. If your arm is IK chain, then you just add child of constraint to your hand (bone which drives IK chain - IK target) and select target bone. Then you can animate influence of this child of constraint. Here is quick example:

child of constraint example.blend (140.5 KB)

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Ok, I looked at your file and it helped me understand what I was doing wrong… And it’s moronically simple to the point that I wont say how long I’ve spent figuring this out and the lengths to which I’ve gone to try and fix it, which include purchasing several add-ons to construct an entirely new rig for one of the characters…

I was selecting the hand_ik then simply going over to the constraints tab and creating a childof from there thinking this was selecting IK component instead of the whole rig. Didn’t realize there was a separate bone constraints tab.

I was going to the wrong menu… lawdy. When I get stuck on something this long I suspect its usually something obvious I’m missing on my
part… that holds true still.

Thanks a lot for your help with this very appreciated

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Glad I could help you. If you will have more questions about rigging feel free to ask. :slight_smile:

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