Wheel Tracking Dilemma

[Willie]

RAYO..the pipe lies on the ground so yes, the parts which touch
the wheel rims are right angled uprights. You're going to make one
out of string? even you won't manage that!
WOO, I do seem to remember something about a do it yourself
gauge which you drove over. Since you can now buy cheap tools
which project a laser beam this must open the way for some genius
to perfect a reliable tracking setup?