topic Re: Stair Tolerance for Tread/Riser Gap in Modeling

Stair Tolerance for Tread/Riser Gap

enmasse_Austin — Sun, 26 Apr 2026 14:52:08 GMT

This is the second time I have encountered this on a project, but have yet to find any direction. When I try and create a simple contour of a stair in section, there is always a graphic error showing vertical lines extending past the treads and connecting to the structure. Typically, the stair wants to default to a small gap between the stringer and treads, but the problem persists when all of my tolerances are set to zero. Any tricks for this sort of thing?

Operating system used: Mac Intel-based 26.4.1 (25E253)

Re: Stair Tolerance for Tread/Riser Gap

Patrick M — Wed, 22 Apr 2026 23:43:12 GMT

presumably the tread/riser is the same bMat as the stair body?
I am seeing it merging together... until I zoom way in. The line does not appear to print on my end, but is annoying.
one solution may be to turn off the riser, and have just the tread and stair body.

...
if you are open to having me take a look at it, can you save it as a .mod and drop it to me in a direct message?

sometimes it doesn't make sense how it can work one way for you than for other people until I can click around and reverse engineer your settings in more detail.