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Unread 06-02-2005, 13:38
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Leav Leav is offline
Spud Gun Division
AKA: Leav Oz-Ari
FRC #3316 (D-Bug)
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controlling just x or y axis of a double articulated arm

our arm will probably have two points at which it turns (see picture), and for simplicity we are looking to be able to control just the grabber part of our arm, on x and y axes.

i'm sure there is a way to do this, because CNC machines have to do a similar thing.....

I'm unable, for the life of me, to develop a mathmatical formula to mix the joystick axes in a way that would allow us to control just one grabber axis at a time....

Has anyone ever done anything similar? would anyone be willing to lend me a hand here?

Thanks guys!

-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."
-Paraphrasing JFK

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.)