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I'm rigging this FPS arm and I wanted it to have a wrist rotation rig (small bone on the wrist) that works great but when I bend the elbow this happens... I think it's because Blender isn't considering the big forearm bone which is the parent of the wrist and for some reason it is moving the mesh based on the hand (not IK) weight paint.(Hierarchy goes like Forearm->wrist and hand) I'm not really experienced in the rigging part of the blender and this problem has made me frustrated. PLZ HELP enter image description here enter image description here

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    $\begingroup$ This looks like an issue with weights. We'd need to see the file. I first would double check that the forearm bone has "deform" enabled in properties/bone/deform. $\endgroup$
    – Nathan
    Sep 18 at 1:33
  • $\begingroup$ <img src="https://blend-exchange.com/embedImage.png?bid=k0xKPLdE" /> $\endgroup$
    – sina ahadi
    Sep 18 at 8:30
  • $\begingroup$ sorry it was 3 in the morning and I had to sleep $\endgroup$
    – sina ahadi
    Sep 18 at 8:31
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    $\begingroup$ I've added the link to your Blend file into your question. $\endgroup$
    – John Eason
    Sep 18 at 9:07
  • $\begingroup$ @JohnEason thanks! $\endgroup$
    – sina ahadi
    Sep 18 at 9:51

1 Answer 1

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As you see this bone has too much influence on the forearm, you need to correct by weight painting or simply try a Weights > Assign Automatic from Bones:

enter image description here

After the operation:

enter image description here

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  • $\begingroup$ It worked! Thanks $\endgroup$
    – sina ahadi
    Sep 18 at 15:19

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