Buffer is very similar to Wobbler in many regards, but the main difference is its wheels. For this bot, you’ll attach two round “buffer” wheels to downward-facing motors that are rotating toward each other, so when you turn the bot on, it propels itself in the direction the scrubbers are spinning. Buffer looks a bit like a tiny street sweeper, but it moves differently from its larger cousin. However, it may actually clean your floor. Buffer is an easy little bot to build and fun to use.
Tools and Supplies
Two continuous-rotation servo motors with the controllers removed
A 4 × AA battery holder
Lid from a 12-inch plastic rectangular ...
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