I have decided to build an all mahogany archtop guitar based on the design of a Guild T-100 D that I own.  It plan to connect the top and back with central ribs so it will really be chambered as opposed to having acoustic plates. I am going to make the sides from 5 veneer plies.  4 maple with a mahogany exterior.

Here I have begun shaping the form to glue up the sides

Here are the sandwiches of veneer being glued in the form.

Here is the side out of the form.

Gluing the cutaway.

Gluing the cutaway.

I have trimmed the sides to fit in the mold and have glued the neck block, heel block, and central supports.

I have added a central block to accomodate a tunomatic bridge using imbedded posts and have trued everything with a block plane. The kerfed lining went on without any problems.  I will true the entire body up on a sanding board.

I glued the back up from bookmatched mahogany. With the back cut just a bit oversize I established the ouside depth using the router.  I routed a 1/2 inch groove around the perimeter and started rounding the back to this line.  I was able to remove much of the wood with a flat plane and then carved the recurve with a gouge.  I smoothed it a bit but left the final sanding for later.

With the back roughed to shape I was able to begin removing wood from the inside. I traced the outline of  my center blocks and determined which areas to hollow.  I mounted a dowel underneath a drill bit in the drill press and set the depth stop to stop 1/4 above the dowel.  The dowel registers off the outside contour and drill bit stops with just the right amount of wood left between them.  I began removing the wood with a chisel and gouge.  Still a bit more to go.