Quote:
Originally Posted by wayanlam
for the speed you actually manually set up the radius of the wheel and then you program in how many magnets you are using (i put in all 6). to measure the radius i put a piece of tape on the floor, rolled the wheel one turn, and marked the other spot, and measured the distance. i got 1575mm or something like that.
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just wanted to make sure, since you may have been driving around with it already and it could be working...you said to put the RADIUS into the unit, but measuring the way you did it gives you the CIRCUMFERENCE of the wheel. 1575mm/25.4mm (25.4 mm in one inch) = ~62". Front wheel is 17" if i'm not mistaken, maybe add 1" on each side for the tire, so 19" = 9.5" wheel radius = ~241.3 mm. I would imagine your speed would be off a bit if you put in 1575 mm. i guess i'm assuming maybe you took the circumference and divided it by 2*pi but left that detail out?
why not just pull out a tape measure?