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Unread 04-03-2012, 23:42
de_ de_ is offline
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AKA: Dave Edwards
FRC #1310 (Runnymede Robotics)
Team Role: Mentor
 
Join Date: Apr 2005
Rookie Year: 2005
Location: Toronto, Ontario
Posts: 256
de_ is a jewel in the roughde_ is a jewel in the roughde_ is a jewel in the roughde_ is a jewel in the rough
Re: FP 2011 (00801-0673) versus 9015 power

Because that was the only remotely appropriate gearbox we had in inventory ! We hoped we could get away with a single FP or 550 size motor to minimize high up weight. We had hoped to reduce chain related losses (and sprocket & chain weights) by direct driving (through the AM). We also had no idea what sort of drop in RPM a largely unloaded motor would incur trying to shoot the ball (drop in RPM means drop in exit velocity of the ball relative to the no-load rpm). Heh I'm not in mechanical But then we found the recover time slower than we would like. Shooting distance was limited to 14 ft which some team members wanted more so we put on a more powerful motor. Unfortunately its KV was higher.