Attaching a wall to the underside of a curved stair

[emnight87]

Does anyone know how to attach a curved wall to the underside of a curved monolithic stair?

[Mike L Sealander]

In-place Void to cut the wall. Don't try to use an attachment method.

[davidcobi]

Inplace void as a swept blend to be more specific.

[davidcobi]

An alternate method:

Model your stair and a wall
Build an in place family of the floor or roof category
Model a sweep blend for sloping top of wall or extrusions on each tread for stepping top of wall
Use the stair geometry to pick workplanes and pick path
Attach wall to this in place family
Set the in place family as temporary in the phase to hide it from schedules and views

[cliff collins]

Another possibility might be:

Create a Custom Railing, with a "wall panel" as a custom baluster family. Apply the Custom Railing to the Stair, with a negative offset from the tread/risers.

Another method could be a custom Stringer at the edges of the stairs, which acts as a "wall", attached to the stairs but also extends down to the floor/level below?

I'll have to test this--but it seems like I remember Phil Read had some incredible custom stair modeling ideas which included something along these lines........

Edit: Attached image shows Monolithic Stair, with Custom Stringer; Structural Depth on Run and Landing set to equal overall height (10'-0" in this case).