Rotation on Axis Along non-planar surface

[tlouison29]

Hi

I’m trying to rotate these triangles that I have about their base axis but some are rotating in the opposite direction.

Here’s my definition. Does anyone have any suggestions on how to fix it?
WIngs ani.gh (449.8 KB)

[Pietro_Pedone]

Try adding these components and see if this works for all the others too.

[tlouison29]

Thank you So much. Worked perfectly!