Rigidbody Constraint Type Items

FIXED

Fixed.

Glue rigid bodies together.

POINT

Point.

Constrain rigid bodies to move around common pivot point.

HINGE

Hinge.

Restrict rigid body rotation to one axis.

SLIDER

Slider.

Restrict rigid body translation to one axis.

PISTON

Piston.

Restrict rigid body translation and rotation to one axis.

GENERIC

Generic.

Restrict translation and rotation to specified axes.

GENERIC_SPRING

Generic Spring.

Restrict translation and rotation to specified axes with springs.

MOTOR

Motor.

Drive rigid body around or along an axis.