I took a few pictures of the paper-pieced Judy Niemeyer quilt I am working on. I thought the method of constructing the wedding ring arcs was ingenious. You use 2.5 inch strips, which you presort in a particular order. The paper foundation tells you which fabric strip to sew. You line up the side of the 2.5 inch strips on the dotted line under the paper foundation. You sew down the adjacent solid line.
You sew the next paper foundation right below the first paper foundation, continuing down the 2.5 inch strips, until you have sewn all 8 paper foundations to the strip.
This picture shows folding the paper foundations on the solid sew line with a card, and then triming away the excess with an Add-A-Quarter ruler. The trimmed stack is in the back.
This picture shows the foundation strips after a few strips have been sewn and trimmed. The next strip has just been sewn down, waiting to be pressed and rotary cut apart.
This picture shows the sewn arcs and a template ruler. Creative Grids produced a ruler set of templates for the Bali Wedding Star quilt. Shown is the template for the arcs. It has holes drilled in it to mark 1/4" seam allowances. You could make a double wedding ring quilt with just the ruler set.