[DKolberg]

Originally Posted by MORT~11

We used a variable power power supply to power the motor, so the motor was running at 9Volts or 3/4 power, and there was a reduction on it to the shaft which was 2:3, so overall it was running at around 2250 rpm. The ball shot 19 ft at a 20 degree angle, so we are hoping for this weekend, to get it at 35 degrees and see how it works out for us!

Also it is a one wheeled design for simplicity, and the sheer fact that 1 is easier to prototype than 2. The wheels spinning are two of the 6" skyways side by side to give the ball 2 contact points.

with a 6" dia wheel and 2250 rpm you exceeded the max velocity. 2250 with a 6" wheel is 58.90 ft/sec or 17.95 m/sec and the limit is 12 m/sec.