custom stair issue

[Anonymous]

Hello.
I am trying to build a custom stair. I made all the settings I want, but I cannot place the stair because I receive the following error : see picture. How can I fix it?
The much I know, there's no nosing to adjust.
Thank you.

[Erwin Edel]

You need to adjust the line of travel in such a way that the treads don't intersect eachother. By either moving it off-center to the left or right.

[Erwin Edel]

Here is a custom stair I made long ago, the arcs in the line of travel have a larger diameter than the distance between line of travel and the side of stairs.

The line of travel is also off center, otherwise the treads would become very large. This is all stair design basic rules, though. At least in NL (300 mm out of wall, etc etc).

[Anonymous]

Thank you for your help. I put the line of travel 10 cm off center and it finally worked.