Free Revit Family: Parametric Curtains Opening with a Plan Slider (ZachLarson)

Overview

RevitCity member ZachLarson shared this curtain family in December 2020 as an exercise in pushing family formulas rather than as a practical solution. The curtains open and close through a slider in plan view, with the fold geometry driven by calculus, trigonometry and numerical methods, and the author warns that the family is computationally demanding.

Parameters cover materials, curtain length, width and thickness, rod length and diameter, wall offset, grommet diameter and spacing, and left, right or double configurations. It has more than 20,000 downloads, and downloading requires a free RevitCity login.