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Unread 27-12-2006, 18:10
AustinSchuh AustinSchuh is offline
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FRC #0971 (Spartan Robotics) #254 (The Cheesy Poofs)
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Re: pic: 2 Speed Transmission

I am shooting for 15 ft/sec and 5 ft/sec. I chose 3 stages because I could then use the free 14 tooth and 50 tooth gears from the KOP transmission and machine them how I want.

The gear ratio is as follows. 14 tooth gear on the motor geared to a 50 tooth gear. Then, the two gear ratios to the dog shaft are 25 tooth to a 50 tooth, and a 40 tooth to a 35 tooth gear. The final reduction is a 14 tooth gear and a 50 tooth gear.

As you can see, there are a lot of 14 and 50 tooth gears in the gear ratios that I chose. I only have to buy 25 tooth gears, 40 tooth gears, and 35 tooth gears.
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