CheepShot 3.0 has been quite a successful bot, winning many fights and capturing the 2006 national championship. It has proven near unbeatable against spinners but has done less well against other
wedges and flippers. One problem has been a relative lack of speed and power and the other has been directional stability where it has shown a reluctance to drive in a straight line. I tried to find suitable
motors for fitting onto the existing Harbor Freight gearboxes but was unable to find anything with the required rpm/volt that would give a reasonable increase in speed over the current 8 mph. An advert for a 24v
cordless drill from a local auto part store caught my eye and it looked like this might be the basis for a new drivetrain. The drill uses a much bigger speed 700 motor (the existing ones are speed 550s)
and had a 1200rpm top speed rather the 900rpm of the HFs. |
