In the midst of jointing and planing the stock, I took a bit of time to create the template for the arch. Eventually I will use it to draw the arch on the boards and will use a pattern bit to finish up the edges. I posted the second go around as I messed up the measurements on the first.
I used CAD to determine how the arch will fit and the dimensions.
Using the two stick method (which I learned from other LumberJocks) I drew the top of the arch.
Cut outside the line with the jig saw.
Sand to final shape.
Copy the bottom line exactly 5 inches apart using the combination square and a sharpie.
Cut and sand to final dimensions.
Voila! An arch template.
-- Christ was a carpenter...a fact that humbles and inspires me.