| Axis | Description |
| X | Longest axis perpendicular to the Z axis |
| Y | Axis perpendicular to the Z and X axes |
| Z | Axis along the line of the spindle |
| U | Axis parallel to the X axis |
| V | Axis parallel to the Y axis |
| W | Axis parallel to the Z axis |
| A | Rotary axis about the X axis |
| B | Rotary axis about the Y axis |
| C | Rotary axis about the Z axis |