Computer Aided Design

Stone Timer

For this modeling assignment, I designed a kitchen timer made from a medium-sized stone with a twist mechanism. The timer consists of two halves: the heavy top portion requires deliberate effort to rotate, allowing users to set random countdown intervals and add an element of surprise in routines. The bottom half is hollowed out to accommodate the internal mechanics and timing components while preserving the stone's natural appearance.

Unlike traditional timers that have visual displays, this stone timer relies entirely on auditory feedback. Users hear a gentle ticking sound during operation and know that the countdown is complete when the ticking stops, accompanied by a final sound that signifies the end.

As my first independent modeling project using Fusion 360, I faced the challenge of accurately representing this object. I was uncertain about which elements would effectively communicate the design concept and functionality to viewers, who would only see a rough stone with a thin, horizontal engraved line wrapping around it. I used this YouTube tutorial to “sculpt” my object.

Download Stone Timer STL