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Hi im Trying to animate multiple Cam Lobes on a single shaft

Like Soenter image description here

and each Lobe is at a different interval to each other which is where I have drawn a blank. and each Lobe should drive their own individual Valve

Does anyone have a super Solid Solution to this

Here is the File if you need the Physical Camshaft and Valve Setup to help me with my rigging problems

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Have you considered using Shrinkwrap constraints?

Here. the valve-rod is parented to an Empty, which is constrained to be projected onto the surface of the cam, down its own Y axis..

enter image description here

If the slight penetration is a bother, maybe that could be tweaked out by keyframing or driving the constraint's offset, or influence? Or by having a hidden, slightly reshaped cam, to displace the Empty,avoiding intermittent intersection with the rod.

Example settings.. the Empty is constrained to the Cam, projected.

enter image description here

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  • $\begingroup$ how to I do the Projected Constraints $\endgroup$ – DODGE26 Oct 21 at 12:09
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    $\begingroup$ Hi, @DODGE26. It's a Shrinkwrap constraint on the Empty, with settings as shown in the edit, the sphere is parented to the Empty. $\endgroup$ – Robin Betts Oct 21 at 12:59

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