| Lower offset |
Here you input the value by which the length of the central struts on the underside (beginning of the spiral) is to be changed. Positive values lengthen the struts, while negative values shorten them |
| Upper offset |
Here you input the value by which the length of the central struts on the upper side (end of the spiral) is to be changed. Positive values lengthen the struts, while negative values shorten them. |
| Create foot plate |
A foot plate is added to the central strut, but the strut is not shortened in the process. |
| As Polyplate |
The foot plate is made from a plastic sheet instead of a flat steel profile. |
| Plate thickness |
The thickness of the foot plate. |
| Foot plate width |
The width of the foot plate. |
| Plate height |
The length of the foot plate. |
| Hole diameter |
The diameter of the holes in the foot plate. If you input the value "0", there are no holes made in the foot plate. |
| Hole distance width |
The distance between the holes in the direction of the plate width. |
| Hole distance height |
The distance between the holes in the direction of the plate length. |
