Timber Framers Guild Forums General General Forum Questions Layout of a curve on a beam

You can also by $2.00 worth of lamp pull chain at the nearest hardware store, and do this:



It's technically not a circle, but a Catenary Arch. But for shallow curves it's almost the same. No fussing around trying to find the center of the circle. Just mark the endpoints and the offset. Tap on the chain to leave little dimples, and connect the dots. CB.