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Unread 14-01-2005, 00:39
Unsung FIRST Hero
JVN JVN is offline
@JohnVNeun
AKA: John Vielkind-Neun
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 2000
Location: Greenville, Tx
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Re: Drive Assembly Sprockets are Custom Bored

The transmission output shaft is metric - 16mm dia with a 5mm keyway.

(as taken from the transmission manual found here: http://www.ifirobotics.com/kitbot.shtml in the output shaft drawing spec)

Paul, please correct me if I'm wrong.
Teams can buy any size sprocket they want (with a bore less than 16mm), rebore it to 16mm and rebroach to 5mm. There is probably a fancy way to broach this keyway, but the simplest way is just to buy a metric broach set.

Anyone else have advice?
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In the interest of full disclosure: I work for VEX Robotics a subsidiary of Innovation First International (IFI) Crown Supplier & Proud Supporter of FIRST

Last edited by JVN : 14-01-2005 at 00:42.