I remember my dad telling me I'd need A-level maths one day....StewbieC wrote: ↑Tue Jun 23, 2020 2:51 pm 1/2 degree of negative camber is ca 3mm difference between the top of the rim and bottom of the rim measured against vertical (taken from a 15" rim that measures ca 380mm dia).
I used a simple Bosch laser level that provides a vertical plumb line, you can use a plumb line suspended somewhere close to the wheel and measure to the string
camber = tan -1 (difference in measurement to the plumb line (in mm) / diameter of rim (in mm))
so tan-1(-3mm/380mm) = -0.45 degrees
Well, it was no use whatsoever throughout university, post grad and a career in dentistry (dentists don't measure anything - with a very few exceptions) but 48 years later I had to setup my Mustang's front end, so I dug out my book of log tables, reacquainted myself with SOHCAHTOA and Bob's yer uncle!*
*although in my case he was my Dad.