Digital Fabrication

A semester of Harvard PS70, documented week by week — laser cutting, CNC milling, 3D design, microcontrollers, circuits, and networking, ending in three autonomous robots that chase each other over radio signal strength alone. Each entry covers what I built, what broke, and what I changed.

Week 1 Final project proposal Week 2 2D design & 3D modeling Week 3 Hand tools and fabrication Week 4 Microcontroller programming Week 5 3D design & printing Week 6 Electronic inputs Week 7 Electronic outputs Week 8 CNC milling Week 9 Radio, WiFi & Bluetooth Weeks 10–12 Machine building — tic-tac-toe drawing machine Final project Three robots that chase each other by radio alone