Sine, a mathematically-inspired rocking chair



1. To create an interactive seating device


2. To create a seating device that exemplifies tectonics and human physiology


"Tectonics" means using the structure and construction as a means of defining

the aesthetics.

From the beginning, I wanted to use plywood to create layers and facets.

I found inspiration in Le Corbusier's "Modulor Man", and how he observed mathematics in human proportions.

This led to refocused ideation and sketching.

Some quick modeling led to the final form.

All of the pieces were modeled in Solidworks.


Drawings were made from the 3D model, allowing the parts to be cut with a

CNC router.

All of the pieces are held together by 2 inch dowels and friction.