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Unread 12-04-2006, 03:35 PM
Andy Brockway Andy Brockway is offline
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pic: Dual sprocket Dewalt drive

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Unread 12-04-2006, 03:37 PM
Jaine Perotti Jaine Perotti is offline
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Re: pic: Dual sprocket Dewalt drive

Andy, are you hoping to use this on the 2007 robot? If so, how are you planning on accomplishing the shifting mechanism (this was sort of an unknown when we were playing around with this a few years ago)? I see that there is a little notch in the shifting mechanism... would you like to explain?

Anyways, looks nice, as always. I hope you don't mind if I drop in on a meeting or two over my Christmas vacation.
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Last edited by Jaine Perotti : 12-04-2006 at 03:44 PM.
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Unread 12-04-2006, 06:28 PM
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Re: pic: Dual sprocket Dewalt drive

the dewalts generally are shifted with a servo.
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Unread 12-04-2006, 10:27 PM
Goldeye Goldeye is offline
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Re: pic: Dual sprocket Dewalt drive

How did you fit the second sprocket?
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Unread 12-05-2006, 07:05 AM
Andy Brockway Andy Brockway is offline
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Re: pic: Dual sprocket Dewalt drive

We are not planning on using the DeWalts next year for the drive. I was playing with the shifter using a servo but pulled it off before I took the robot out in the street.

The sprockets are attached like a sandwich. The outboard sprocket is type A, no hub. The inboard sprocket is type B, with hub. The hub is machined to reduce the distance between the sprockets. Both are piloted on the adapter. Clearance holes are in the first sprocket and tapped holes in the second. Simply run two bolts from the outside.

Jaine - stop by anytime, we are using the same general schedule.
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