What should I do with an old 450 MHz Sawtooth G4 Mac running OS X 10.2? Assume that it runs well as-is and that I have $100 to spend on accessories. Bonus points to answers involving robots (for which I don't have materials for) and/or digital cameras (for which I do).
posted by infinitewindow on Jul 27, 2009 - 3 answers

Any cool examples of robots (real or fictional) with LED, or LCD faces or mouths? Or any interesting robot faces or mouths that light up?
posted by SouthCNorthNY on Apr 6, 2009 - 17 answers

How can I determine my robot's location reliably and cheaply? [more inside]
posted by godawful on Jan 21, 2009 - 4 answers

Robotics question: simple and high-payoff project, don't have the time/leet skillz/rationale to jump in the deep end of the pool (i.e. academic smartypantses building attack vehicles), don't want to spend the money on/deal with the physical bulk of the shallow end (Mindstorms et al). What is in the middle? [more inside]
posted by Your Time Machine Sucks on Feb 21, 2008 - 10 answers