in step 6 he tells you how to get it started. You first have to cut the bottom off of the bottle so you can fit it in between the washers.
Use a PS3 Controller to control an Arduino NXT Bot
SNES + Teensy = USB/PS3 Gamepad
Happy Wife-Happy Life! Easy to do Hight adjustable Shoe Shelf, Made from scaffolding Parts, with Polished Stainless Steel Rings on Top
Valentine's Day Electronic Card