Since I don't have a 56' diameter paint can lying around I thought I'd ask you guys who are math whizzes;
Does anybody know how to figure the amount of offset needed to create and arch for a given amount of length on a straight line in order to get a section of a circle of a given radius? For example, if I wanted to make a dish or a brace making jig for a router table with a radius of 28', and let's say I wanted to know the amount of offset to create an arch on a 24" line that would create a portion of a 28' radius circle. Is there a formula that would let me plug in the length of a straight line and the radius of the circle that would give me the offset? It would be a big help having this info so I could come up with jigs and dishes.
I know there are dishes available, as well as arch templates, but I like making stuff myself when I can...adds to the fun but unfortunately, this fancy math isn't my forte!
