Published January 13, 2025 © MIT

Bezicron

A mechanical clock which stretches a flexible elastic to form the digits

AdvancedProtip20 hours320

Things used in this project

Hardware components

Microchip atmega8

SparkFun Stepper motor driver board A4988

Hall Effect Sensor

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

3D Printer (generic)

Soldering iron (generic)

Story

The clock consists of 4 modules of digits paired in two units. Each pair is powered by a 20mm geared stepper motor. Each pair has one module driven by the stepper motor and the second module is moved by a carryover mechanism. Both the units are controlled by a control board in the base containing a atmega8 running in the arduino ecosystem.