Advance Steel Spiral Stair Inside width of tread

[JasonH6T4E]

I'm modeling a spiral stair with AS 2019 and I want to adjust the inside width of my bent plate tread. the box is grayed out and i cannot find which setting i need to change in order to unlock or get access to changing this dimension 

[AleckGiles · Accepted solution]

Hi,

Your stair has a central column and that dictates the inside diameter of the tread. The front and back edges of the tread are radial lines from the centre of the stair to the outer edge. Therefore the outer width controls the inner width too.  One of the limitations of the Spiral stair macro is that you cannot have the front and back edges of the treads that are not radial lines.

[JasonH6T4E · Accepted solution]

Thanks for your reply, Its unfortunate. With a 4" Pipe Center, the treads are challenging to bend being so narrow on one end. I was trying to widen the inner treads. We did achieve the bends but, next time I may just draw the thing manually or abandon the macro at some point.