keithcross wrote:Or you could find the centre of the swinging arm boly with an engineers square, fit a point to one end of a piece of string and a pen to the other. Mark one place on each side of the swinging arm with the pen, then put measured marks from this datum
I know, you all think I'm a cheapskte, maybe I am, but you should only need to do this once.
Keith
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I found some centre finder things in a catalog but they're for lathes and milling machines. Quite nifty, they have a sort of eccentric - you probably know them - centre and you move it around on the end of the work piece until the rotating end-piece - that has a point - is concentric with the other part. [..shees, what a useless description.]
But I get your point about..measuring once / making a mark, so you dont' have to do it again. All the time I was thinking about something that would have to measure from the swingarm pivot every time.