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Unread 30-01-2008, 15:04
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Re: Position idlers to get better chain wrap -- a question about good practices.

Another way to get a faster speed out of the kit transmissions is to take out the second reduction stage. You have to move some parts around, add a washer to space the gear on the output shaft, and add more holes to the aluminum plate to clear the ends of the motor shafts. Also if you want to use the gear tooth sensors, you'll have to relocate them (after you get them repaired). Then you can use about 3:1 chain reduction (with 6" wheels) to give you a reasonable "high gear" robot speed. The Andymark 12 tooth transmission sprocket, as well as 36 tooth wheel sprockets from Andymark or IFI, will do this.