SurfaceType (Enum)

The SurfaceType Enum has 9 numbers:
Enum	Name	Description
0	Smooth	Does not form a bond with any other surface, except Weld.
1	Glue	Forms a loose bond with other surfaces.
2	Weld	Forms a strong bond with other surfaces.
3	Studs	Only forms a weld-like bond with inlet surfaces.
4	Inlet	Only forms a weld-like bond with studded surfaces.
5	Universal	Forms weld-like bonds with Weld, Studs, Inlet and itself.
6	Hinge	Forms a hinge-like bond with other surfaces, with free movement.
7	Motor	Forms a hinge-like bond with other surfaces, without free movement. A motors behavior depends on the surface input.
8	SteppingMotor	Same as Motor.

The following table explains how SurfaceTypes work:

Surface Types

SurfaceType	Weld	Universal	Studs	Inlet	Glue	Smooth
Weld	Weld	Weld	Weld	Weld	Weld	Weld
Universal	Weld	Snap	Snap	Snap	Glue	No Joint
Studs	Weld	Snap	No Joint	Snap	Glue	No Joint
Inlet	Weld	Snap	Snap	No Joint	Glue	No Joint
Glue	Weld	Glue	Glue	Glue	Glue	Glue
Smooth	Weld	No Joint	No Joint	No Joint	Glue	No Joint