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I am trying to move a cable car along the cable. ...up and down (!) the hill and around the pulley. This means the cable car object must move its x- and y-axis along the curve, while its z axis remains fixed (because its always hangs straight).

The "z-up twist" method doesn't work because like that x and y are also fixed.

With "follow curve" the z-axis moves according to the curve.

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  • $\begingroup$ do you want that? [1]: i.stack.imgur.com/q0585.gif if not, please add a link to an animation/video how it should look like. thanks. $\endgroup$
    – Chris
    Dec 21, 2022 at 7:11
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    $\begingroup$ Hello and welcome! Surely someone here would like to help you, but with the information you provide here, I'm afraid that will not be possible. Please supplement your question with a detailed description of the problem, including images and other details. It might also be helpful if you share the blend file or at least provide a usable starting point. Otherwise, this question would be closed shortly. Thanks for your understanding! $\endgroup$
    – quellenform
    Dec 21, 2022 at 9:42
  • $\begingroup$ thank you very much chris! yes that is almost what i wanted, except that the cabin also should turn around when the "cable" is turning around the pulley (at the top and the bottom). best regards christian $\endgroup$
    – 8mö
    Dec 22, 2022 at 15:54
  • $\begingroup$ Add a Limit Rotation constraint after the Follow Path, and enable it for X and Y. $\endgroup$
    – FFeller
    Dec 22, 2022 at 17:00

1 Answer 1

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In the Illustration at the bottom, the red block has a Follow Path constraint on the yellow curve (left, below). The blue carriage-object is bound to the red block with a Child Of constraint, without including rotation in the axis across the slope (right, below).

enter image description here

The result is the carriage inheriting all the transforms of the block, except the tilt:

enter image description here

Unlike a Limit Rotation constraint, this method leaves you free to manually animate a bit of swing or wobble on the carriage, if you like.

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