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Unread 08-02-2011, 01:09
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Mike Betts Mike Betts is offline
Electrical Engineer
no team
Team Role: Engineer
 
Join Date: Dec 2001
Rookie Year: 1995
Location: Homosassa, FL
Posts: 1,442
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Re: 1/8th thick aluminum

Quote:
Originally Posted by NyCityKId View Post
Hello all,

Team 1601 is having a small dilemma. We're trying to figure out whether we should switch our arm material to .032 thick 2024-T3 aluminum from .125 thick 6061-T6 aluminum. We are using two window motors on the same shaft geared 1:2 and with the 6061 aluminum our arm is going to weigh rougly 10 lbs. Would the change to the thinner aluminum be worth the loss in strength?
I'm not sure of the particulars of what or how your arm works but a ratio of 2:1 is pretty fast. Perhaps it is too fast to control? Changing gear ratios may be easier than building a new arm making it slower and having more torque all at the same time...
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Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...