I’m trying to block z axis spin(or rotation) of ball socket constraint since it should not spin in z axis, how can I block z axis move?
Try a CylindricalConstraint instead. You’ll need to adjust this constraint a little to achieve that though.
I tried CylindricalConstraint, and it just move left and right, not rotate. What should I change for rotation?
On another note, you could try BallSocketConstraint again but this time with a combination of another constraint to limit it. I am not exactly sure which combination should achieve this effect.
2 HingeConstraints at 90 degrees to each other would do that, but that is pretty much what a UniversalConstraint | Roblox Creator Documentation does.
What are you using the constraint for?