I'm having a hard time visualizing this plan. I understand steering yokes to be the fittings that attach the rack and pinion to the steering wheel via the steering shaft. Are you talking about the arms on the spindle that the tie rod is attached to via the tie rod end? Or are we attaching a plate to the tie rod that has two helm joints (one above and one below the spindle)? My understand to how we would adjust camber would be to move the shock towers in or out to move the angle of the wheel.Replace those steering yokes with a plate, then put a heim joint above and below your karting spindle. You can either run two bolts in single shear or one long bolt with a spacer between the spindle. That will let you get the camber in check down to half a turn on each heim. I'd imagine that running large tires that are also round means you are looking at some serious camber thrust if the front end is off even a smidgen. You're probably going to want to run some castor and decent scrub radius, because with the differential and the rack and pinion, the steering isn't going to self center very well. Also, to get the camber right the thing should be on the scales, with the cross weights minimized, then the cambers set, then the cross weight adjusted again, then cambers reset. It will be a process with that swing axle arrangement. It always is with my F-Vee. Once complete I bet it drivers rather well though.
I think I know what you mean. You mean the ends of the swing axles where the bolt runs through to mount the spindles. Correct? Cut the ends off, add a plate. Mount helm joints top and bottom, so the spindle rotates by a bolt through the helm joints, but the spindle/helm joint assembly is mounted by the threaded ends of the helm joints to a plate at the end of the swing arm. Is that making sense and do I understand that?I'm having a hard time visualizing this plan. I understand steering yokes to be the fittings that attach the rack and pinion to the steering wheel via the steering shaft. Are you talking about the arms on the spindle that the tie rod is attached to via the tie rod end? Or are we attaching a plate to the tie rod that has two helm joints (one above and one below the spindle)? My understand to how we would adjust camber would be to move the shock towers in or out to move the angle of the wheel.
We're building a scaled version of those. Very similar.Saw this today...same type? that looks like alot of fun.
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Assuming the coronavirus doesn't delay the start of school or doesn't put us online, classes resume the second week of August.Rad, do you know when you get started on it again?
Got a good lesson on steering geometry. These spindles are made for 1/4 midgets, so they go on oval track cars and they're designed to get the steering into the wheels and only go left. I'm looking at a bad angle on the steering no matter what with these arms, because it's putting my pin at 2 o'clock and 10 o'clock. I need to go straight out to 12 o'clock. This is a good opportunity to cut up sheet metal into steering arms and test the angle of the turn with several configurations. Yay for learning.
Left-right-left, left-right...Another left turn?
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Maybe you don't need to go as extreme as they are, but you don't want them at 12 o clock. We learned that lesson on our horseless carriage. Ackermann steering geometry. Basically if you draw a straight line from the center of your rear axle to the center of your spindle pivot, your steering arm pivot should fall along that line. It doesn't matter if the arms are in front or rear of the spindle.Got a good lesson on steering geometry. These spindles are made for 1/4 midgets, so they go on oval track cars and they're designed to get the steering into the wheels and only go left. I'm looking at a bad angle on the steering no matter what with these arms, because it's putting my pin at 2 o'clock and 10 o'clock. I need to go straight out to 12 o'clock. This is a good opportunity to cut up sheet metal into steering arms and test the angle of the turn with several configurations. Yay for learning.
Good stuff. I’m using that pic in class. I’m assuming we’ll be at 12 o’clock on the arms, but I have another set of spindles we may opt for that gives several angles to test. The plan in class today is to cut arms out of sheet metal at different angles to test steer. We’ll also string our line from axle to kingpin.Maybe you don't need to go as extreme as they are, but you don't want them at 12 o clock. We learned that lesson on our horseless carriage. Ackermann steering geometry. Basically if you draw a straight line from the center of your rear axle to the center of your spindle pivot, your steering arm pivot should fall along that line. It doesn't matter if the arms are in front or rear of the spindle.
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