Arched AND Curved Curtain Wall Mullions

[Jen the Drafter]

Hey Guys,

I've been struggling with this for weeks and everything I try seems to lead to something not working out right.
What I'm looking for is a way to model curtain walls that are curved in plan, and have an arched head in section (see attached). I need to be able to extract length from the mullions in fashion as well.

I've tried using a conceptual mass and an adaptive component for the curved mullions, but the extrusion torques too much and it looks wrong.
I tried mass in place with a generic family for the curved/arched mullions, but I'm having alot of issues creating a void to create the arch at the head because 'mass in place' wants you to sketch on a surface, not a curve

Any other suggestions?

[Steve_Stafford]

Every time I've gone down the rabbit hole for this subject the curtain wall became straight segments. I'd just create a single family for the truly curved configuration you describe.