[Carl Allinson]

Hi Michael,

I have figured it out.

Firstly, I converted the helix into a null and made that the parent of the helix.

I then did the same for Bolt A and B, but made these the child of the objects.

I opened Xpresso, added the bolts and the helix and did the following in the screenshot. Once this was done, I applied a constraint tag to the Helix Null and ticked “Transform”. In the Transform tab I made sure PRS were all turned on and I targeted this to Bolt A.

On the helix I applied another constraint tag, but this time ticked “Aim” and targeted Bolt B.

Its now working just like the spring dynamic.

Screenshot-2023-03-17-142142-1.png 27 KB Image File - Click to view

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[Carl Allinson]

Hi Michael,

I have attached the c4d project file.