Leon lcb11211@swbelldotnet wrote in
:

I gotta ask Bill why pipe instead of string? and for that matter I have
drilled a hole in a 25' tape measure and anchored a screw through that
hole and held a pencil at the distance desired.

Pipe don't stretch. String do.

I found out just how much string stretches last summer when laying out a curved sidewalk. Next
time I do a project like that, I'm using something rigid to mark my arcs: board, angle iron, steel
rod, something like that -- but *not* string.