Quote:
Originally Posted by alga
Hm, moving the upright back by 2.5 mm will increase the caster angle to about 6.15°. That's a pretty small difference, I doubt it's worth it.
Actually, making another set of top wishbones with larger offset might be the neatest way to increase the caster. The question is, by how much?
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Alga, how much caster have you calculated for the original setup?
After a bit of work on CAD, i came up with this rough figure.
I assumed a vertical distance of 200.5mm between ball joints (according to
this drawing) and a slight divergence between the upper and lower wishbones towards their outer ends (ball joint ends).
According to my calculations, by offseting the wishbone chassis mount by 2.5mm you increase caster by 0.7deg and by making a new wishbone with 10mm more offset you get 2.8deg of caster! For 5mm offset wishbone you will gain 1.4deg
Original setup: 5.73deg
2.5mm offset chassis mount: 6.43deg
new wishbone with 5mm more offset: 7.14deg
new wishbone with 10mm more offset: 8.54deg