Flying-W
MURC 12 lb
MURC 12 lb
Flying-W uses 2 DrillMaster 12V drill motors obtained from Harbor Freight, and the 5" Colson wheels on each side are mounted directly on the drill motor shafts. The motors spin at 500 rpm and give Flying-W a top speed of 7.4 MPH. The entire bot looks the same right-side-up or upside-down.
The chassis is .035 wall 4130 chromoly steel tubing. The leading edge of the wedge is .063 4130. The covers are made of 5052-H32 Aluminum. There is a 72/75mhz base loaded antenna on the rear, mounted between the two horizontal frame members. Two banana jacks are accessible through the holes in the lower frame member to charge up the battery.
I put a Vantec RFDR23 speed controller, which I won as a prize at Botbash 2002, into Flying W at first, but I was having some problem getting the braking and driving figured out. After several nights of playing around with different configurations, including single and dual joystick modes, I reverted back to my tried and true IFI Victor 883 speed controllers. I've had so much experience with them, and although they are a bit of an overkill on a 12 lb bot, I didn't have to think anymore about making them work. They are running at 12V provided by the Battlepack from Steve Hill. I'm using the Team delta 12V to 5V Battery Eliminator Converter (BEC) and a 35 amp toggle switch for the mains. The receiver is a Futaba 75 Mhz PCM 8 channel unit. Only two channels are used. I placed a 3-20V buzzer from Radio Shack in the bot to tell when it is turned on. The BEC and buzzer are both plugged into two of the RX channels to provide/get power.
