I would like to take a 3" wide x 20" long x 5/16" thick board and cut a constant 16" raidus the entire length of the top of the board when viewed from the 3" end view. The radius is measured in the 3" direction. I can't figure out how to draw this. Can anyone help? I briefly spoke with Bill Columbo at a "camp" and he said to use the extrude command? Can this be drawn and designed in Part Works or does this have to be drawn in CAD first? I am a NOOBIE so please keep that in mind when responding. Thanks...