In article .com,
says...
I'm making a wine rack:

http://www.uniqueprojects.com/projec...k/winerack.htm

and I was wondering how to lay out that sine curve on the piece of wood
to cut it. At first I thought of using a disk of some sort, but that
would yield a series of half-circles.

Well, sort of... This isn't a sine curve, but it's attractive, and easy
to lay out with a disk:

http://mathworld.wolfram.com/CurtateCycloid.html