Camber Gauge

[projectpug 0]

Hi all,

 

Fitting my rose jointed arms this week and wanting to add some slight negative camber -1.5 hopefully. However i dont have a gauge to check the camber wonder if anyone would be willing to borrow me one, i could pay you a deposit?

 

Thanks in advance

Phil

[Tom Fenton 1,541]

You can do this with a spirit level, a tape measure, and some maths.

 

Hold the level vertically, with one end touching the rim at the lowest point. Now move the level outwards until it is plumb as indicated by the bubble, with the lower end still on the rim, and then measure the distance from the level to the rim at the highest point.

 

You can now sketch out a right-angle triangle, and fill in the length for the hypotenuse (longest side, in this case the size of your wheels from where you touched the level to where you measured in), and also the shortest side, the bit you measured.. A bit of trigonometry later and you can work out the angle in the acute corner of the triangle, this is your camber angle.

[projectpug 0]

Ok thanks for this tom so i will do the sin to minus 1 of Opposite/ Hypotenuse in relation to the Rh triangle you mentioned. I will let you know how i get on, (now wheres that spirit level )

[Tom Fenton 1,541]

Thats it, a bit of good old trigonometry, simple enough to do, and if you are reasonable on excel you can do a table and a graph that will give you the measured distance for a range of camber angles.

 

Most important thing however is to get it equal both sides. This is more important than getting "exactly" 1.5 deg or whatever.

[projectpug 0]

Thanks for the advice i know what you mean regarding values as one thread on the adjustment could be under/over the desired camber settings. Just going to have to measure very accurately as im dealing with such a small amount of camber and even 1mm will make a difference by the look of the calculations.