At the beginning of the 2011/2012 school year, my school's robotics team decided to finally dismantle some old FRC robots that had been collecting dust for six or seven years. We had no use for all the parts we stripped off the robots, so I generously relieved the team of some of these parts, including six Victor 884's, six CIM motors (4x 2.5", 2x 3"), 2 AndyMark Toughbox gearboxes, some #35 roller chain, and assortment of sprockets, some steel shafts and shaft collars, a 1/4" by 4" by 3' aluminum plate, 1" aluminum U channel, 1/8" polycarbonate sheet.... Anyways, while looking up the CIM motor curves, and trying to figure out by how much I could over-volt them, I ran into this
, which at one point used a pair of CIM motors. That vehicle then led me to these
. By an interesting coincidence, only a few weeks after I discovered those vehicles, I went to the Atlanta Mini Maker Faire, and guess what I saw there
. After seeing the vehicles in action, I decided to build my own electric vehicle, and so the idea for my scooter was born.
The scooter is geared for a top speed of about 25 mph, has around 3 horsepower, and can go 8-12 miles per charge.