I thought it was so simple, I was just a little bit WRONG.
Here's how we normally talk about seeing zero bs.
The error? The drawing is xy is parallel to the bulk head/suspension pivot.
But in the total xyz the suspension has 10degs of rake.
Added circles to the spuds and found -0.340 toe change
To fix- rotated the bump and droop spindles (on their kingpin axis) to zero toe and re-plotted my inner tie rod location...
A very note worthy changeBasically the rake/caster/camber/kpi skewed in to BS.
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07-23-2016 02:18 PM
JGSFAB- CNC'n everything I can. What to see more?
www.facebook.com/jgsfab or jgsfab on instagram.
And don't forget jgsturbocom on youtube
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07-25-2016 01:56 PM
That explains why my calculated (no CAD) pivot points where not right when it was mocked up with real parts.
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07-25-2016 06:50 PM
I've always figured out bumpsteer in 3D - point the wheel straight at bump, ride height, droop and create points for the steering tab at each of those 3 locations. Create a plane and sketch a circle that uses the 3 steering tab points on the OD of the circle and the center of the circle is where the inner tie rods need to pivot.
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