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Unread 06-02-2005, 13:54
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Leav Leav is offline
Spud Gun Division
AKA: Leav Oz-Ari
FRC #3316 (D-Bug)
Team Role: Mentor
 
Join Date: Dec 2004
Rookie Year: 2005
Location: Technion, Haifa, Israel
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Re: controlling just x or y axis of a double articulated arm

Quote:
Originally Posted by JBotAlan
How do you mean? I have changed our code to assign each joystick to different components of the drivetrain, but I don't understand your queston is entirely. Can you make a simple sketch of the arm so that I might understand it better?
i made a sketch, please note the attachment in my first post:
the blue and red lines are the arm parts.
at each end of the blue line is a motor which changes the angle of the blue and red parts.
the blue line starts at the robot.
the grabber part is situated at (x,y)

@ represents the angle of the blue arm in respect to the floor
$ represents the angle of the red arm in respect to the blue arm
@-$ epresents the angle of the red arm in respect to the floor

now that i think about it... i wasn't really clear at first....

see new attachment

Thanks,
-Leav
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"We choose to build robots this season and do the other things; Not because they are easy, but because they are hard."
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Participated in FIRST as a student: 2005-2006 (But still learning every season!)
Mentor: 2008 - ? (Team 2630 2008-2011, and Team 3316 since 2013)
Engineer: 2011 - ? (B.Sc. and M.Sc. in Mech. Eng. from the Technion IIT)
FIRST Volunteer - 2007 - ? (MC, FTA, FIRST Aid etc.)