A constraint that prevents the target cylindrical face from moving or deforming in the radial, axial, or tangential direction.
The pin constraint is applied based on a cylindrical coordinate system to the selected cylindrical face.
| If you select... | then... |
|---|---|
| Radial | Nodes along the cylindrical face cannot move or deform radially. |
| Axial | Nodes along the cylindrical face cannot move axially. |
| Tangential | Nodes along the cylindrical face cannot translate tangentially (preventing rotation of the cylinder about its own axis). |

An example of a pin constraint, applied radially and axially to 4 faces.