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I am creating a robot that moves with Geometry Nodes.

It can move the body, an arm and a hand independently. The problem is when it moves the hand and the arm at the same time. The hand comes out of the arm.

If you move the arm and not the hand all goes well If you move the arm and not the hand all goes well

If you move the arm and the hand it seems that the hand goes out of the arm If you move the arm and the hand it seems that the hand goes out of the arm.

The geometry Nodes that moves the arm and the hand The geometry Nodes that moves the arm and the hand

Any idea to rotated the hand correctly?

Thanks for your help ;)

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1 Answer 1

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I finally found how to solve the hand problem.

First, you need to turn your hand to the desired angle. I use the 'transform' GN without translation.

Once the hand is correctl rotated I use a second 'transform' GN with translation and the rotation to follow the arm.

Good GN With this GN, the hand stays attached to the arm in any situation

Video of the hand

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