was there a thread in here with a diagram showing the caster correction geometry?
stock i think is positive 2 degrees? which means the axle is canter /backward/ slightly?
them when you do a lift it goes forward by a degree an inch basically when the bushing mount in the radius arm at the back gets raised?
so somehow there is a triangle between a line through the center of the front axle to the rear bushing in the radius arm at the frame? then there is a line (the short leg of the triangle) that runs between the new bushing location with the lift to the old one without the lift?
and then a line (the hypotenuse) runs from the new bushing location (it’s longer so it’s the hypotenuse) to the line at the axle?
so because of the distances (whatever they are) between the line at the axle and the bushing at the frame - for some reason 1” at the short leg equals 1 degree caster at the axle?
then when you caster correct you adjust just the hole through the bushing at the front of the radius arm?
so the distances at the holes between the front bushings are arranged so that you need to drop the front one by some amount to get the axle to cant back by some degrees to get the caster back to 2 degrees or some positive value?
or have i got that backwards?!
i mean has anyone drawn this up? if not i’d like to but need a little help.
images are of kevin’s washer caster mod in the arizona regional forum. one of some aussie mod i don’t understand. and one of a five degree caster plate adjustment.
thanks
stock i think is positive 2 degrees? which means the axle is canter /backward/ slightly?
them when you do a lift it goes forward by a degree an inch basically when the bushing mount in the radius arm at the back gets raised?
so somehow there is a triangle between a line through the center of the front axle to the rear bushing in the radius arm at the frame? then there is a line (the short leg of the triangle) that runs between the new bushing location with the lift to the old one without the lift?
and then a line (the hypotenuse) runs from the new bushing location (it’s longer so it’s the hypotenuse) to the line at the axle?
so because of the distances (whatever they are) between the line at the axle and the bushing at the frame - for some reason 1” at the short leg equals 1 degree caster at the axle?
then when you caster correct you adjust just the hole through the bushing at the front of the radius arm?
so the distances at the holes between the front bushings are arranged so that you need to drop the front one by some amount to get the axle to cant back by some degrees to get the caster back to 2 degrees or some positive value?
or have i got that backwards?!
i mean has anyone drawn this up? if not i’d like to but need a little help.
images are of kevin’s washer caster mod in the arizona regional forum. one of some aussie mod i don’t understand. and one of a five degree caster plate adjustment.
thanks