On Nov 29, 9:56 pm, (Doug Miller) wrote:
In article .com, "Jay Pique" wrote:

All right, I've done a bit of googling and found a few different
techniques for estimating how much crown to use. Now for the math
jocks. I'd like to have my cauls be of a constant radius, so I can use
the whole length or any portion thereof. If I want to have a 40"
length with a crown of 1/10" in the middle, I'm drawing an arc of what
radius? Thanks.2000.05 inches (166 feet 8.05 inches)

Oh. I'm gonna need a bigger trammel.
JP