Once I have the wedge of 20 degrees. I will place a pattern on the wedge and cut a half circle body pattern on it like in this picture. my wedge will not be as long as the one in the picture.
www.cincinnatiearlymusic.com/medieval_lute/wedge.jpg
www.cincinnatiearlymusic.com/medieval_lute/wedge_cutting.jpg
I can then either make 8 more wedges and have a full body mold once glued together, or just use the single wedge once pattern is cut to use a a pattern for the 9 ribs of the instrument.
thus the logic is 9(wedges) x 20 (degrees) = 180 ( glued together) and I will have the half circle mold, or instrument body bowl. The mold is use to pin down the ribs on top of it.
I made a sled for my Bandsaw and my Tablesaw today. So.. if I tilt my tablesaw blade to 20 degrees, or my bandsaw and cut the 10x4x2 (LxHxW) board length wise (bottom right to top left). I'll have a long 20 degrees wedge? correct?
Thanks
Terry