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Alignment Math??? [message #78427] Mon, 29 March 2010 11:28 Go to next message
g.winger is currently offline  g.winger   United States
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Registered: February 2008
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Finally!!! got the front wheels on and on the ground. Am in the process of setting height. Now for the math. Got one of those 3 bubble caster-camber tools. Need to turn the wheels 20 to the right-left. Don't remember that cosine-sine-tang. junk. BUt,,,, its basickly a triangle. I attached a 4' long angle to two lugnuts. How far will it sweep??? 20 degrees,,, solving for the oppisite side. Tanjent of 20 is .364 X 36" would be about 13.1 inches of sweep,,,???YES?NO??. Or .364 X 40" = 14.56 inches. Does this sound correct???? Thanks,,,PL
Re: [GMCnet] Alignment Math??? [message #78435 is a reply to message #78427] Mon, 29 March 2010 12:00 Go to previous message
GMCWiperMan is currently offline  GMCWiperMan   United States
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Registered: December 2007
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Senior Member
Paul,

If you haven't read this technical paper from Hunter Engineering, you
should. In the section "Practical Caster Measurement", you'll find the
simplified formula for translating camber measurements to caster:

http://www.hunter.com/pub/undercar/2573T/index.htm
<http://www.hunter.com/pub/undercar/2573T/index.htm>
Ken H.


On Mon, Mar 29, 2010 at 12:28 PM, Paul Leavitt <leavittpaul@yahoo.com>wrote:

>
>
> Finally!!! got the front wheels on and on the ground. Am in the process of
> setting height. Now for the math. Got one of those 3 bubble caster-camber
> tools. Need to turn the wheels 20 to the right-left. Don't remember that
> cosine-sine-tang. junk. BUt,,,, its basickly a triangle. I attached a 4'
> long angle to two lugnuts. How far will it sweep??? 20 degrees,,, solving
> for the oppisite side. Tanjent of 20 is .364 X 36" would be about 13.1
> inches of sweep,,,???YES?NO??. Or .364 X 40" = 14.56 inches. Does this sound
> correct???? Thanks,,,PL
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> GMCnet mailing list
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> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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