Author: sarahberger24

Parametric Screen

Teak Bench Parameters Presentation

For my bench I wanted to adjust the curvature of the form.  I accomplished this by creating parameters that allowed me to modify the base curve, the back curve, and the shape of the ribs.  For the base and back curves I used the graph mapper tool to change the shape of the curves.  The process I used to build the ribs allowed me to play with the form.  I created points that I drew a curve through to generate the ribs.  I attached sliders to Y and Z values of the points so the curvature of the ribs could be adjusted.

Since my bench is composed of ribs I wanted to play with the density and dimensions of the ribs to further change the look of the bench.  I was able to adjust the number of ribs and the width and depth of the ribs by using sliders.  To create the parameter for the number of ribs I first drew a line in Rhino and divided it in Grasshopper.  I attached a slider to control the number of divisions. I built the ribs referencing the division points so when I moved the slider to change the number of divisions the number of ribs also changed.  To modify the width and depth of the ribs I used the offsetting tool and attached a slider to it.

This video quickly demonstrates how the form of my bench is altered as I modify the parameters I created in Grasshopper.

This video demonstrates the process I went through to build my parametric bench in Grasshopper.

Here are screen shots of my bench…

For my next step I plan on modifying the number of ribs and the curvature of the form.  

Here is the chair I plan on modeling…