My client supplied a tracing of his guitar, in this case a Martin 0000.  I'll use this to layout the interior.  But for now the task is to apply epoxy and microballoons to the exterior, sand it flush, and cut the lid off.  To cut the lid I will use a cut off disc set in the drill press and the case will sit on a panel clamped to the drill press table.  As I pass the case past the cut off disc it will make a cut at a uniform height and in a straight line.