AlignOrientation is a constraint that applies a torque to make its attachments align. Like other constraints, this has two Attachment|Attachments. In this case, the two attachments are constrained to be oriented in the same direction but not necessarily the same position.

By default, this constraint only applies torque on the parent of Constraint/Attachment0|Attachment0, although it can be configured to apply torque on both attachments. This torque can be limited to a max amount via AlignOrientation/MaxTorque.

Note that any torque created by AlignOrientation will be applied about the center of mass of the parent of the attachments (or the center of mass of parts rigidly connected to the parents). Also note that if this constraint attaches one part (A) to another part (B) that is anchored or connected to an anchored part (Z), part A will not be locally simulated when interacting with a player.