Feynman 3
Built 2003
A major leap forward with professional 80-20 aluminum extrusion chassis, battery power for untethered operation, and a complete rewrite in Java. The first Feynman to go wireless.
Specifications
| Chassis | 80-20 Aluminum extrusion with acrylic panels |
|---|---|
| Power | 2x 33AH batteries, custom 5V regulator circuit with LM7805s |
| Movement | 2 windshield wiper motors (F-150 junkyard), 2 Victor 883 speed controllers |
| Sensors | 2 Pyro 1394 Firewire webcams, 3 Polaroid 6500 sonar modules, wheel encoder, Vector 2x Compass |
| CPU / OS | VIA EPIA M10000 Mini-ITX, 256MB RAM, 20GB HDD, 802.11b/g WiFi, 100% Java, Eclipse IDE |
Notes
Power and chassis were a 100% improvement over Feynman 2, but proximity sensing wasn't as good as hoped - it kept running into tables.