IK Limits (With springs)

Yes, I’m still on this rig… :man_facepalming:
Took me a while to track this down after trying other bone-constraints like the stretch-to constraint which didn’t quite work for me… Instead I got the required results from stretchy 1-chain IK constraints pointing to fixed bones.


Setting the bone IK Stretch setting to 1 with a well-parented 1-chain IK constraint will perform the follow-and-stretch you would expect from a spring… (Eevee test render:)


(Spring-bone targets are parented to the arms here…)
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Very clever, springs that work.