C - Extrusion

If the value of Revolutions is zero, then the geometry will be extruded perpendicular to the X-Y plane (i.e., parallel to the Z-axis) and the Height parameter will indicate the length of the extrusion.

For example, consider a square that is two inches on a side that is extruded five inches:

NOTE: Some models that were created with Spirix can be found at https://3dwarehouse.sketchup.com/user.html?id=1824658900641239202016828