Some time ago I created this garage door family, wanted to modify it now, but can't for the life of me figure out how I constrained this sweep path height.
Obviously it's somehow constrained to Rough Height parameter, but it's not placed on that reference plane, it's not locked to it, there is no dimension to it...
The only thing I can see that is locked to is the vertical reference plane in the screenshot, which controls how long it is. But what's making it go up and down with the Rough Height?
