For decoration I added some brass plugs to the corners on two sides. The technical term is a "pinned rabbit joint" Besides decoration, it helps to tel...
Build a nice goban with a resonating chamber.
Before jumping in to this project, I suggest reading up a little on board dimensions.
Step 1: Select your wood
I chose Purple Heart for the frame and Birdseye Maple for the playing surface. Its all personal preference, but a lighter color playing surface is more traditional.
Step 2: Rough cut the frame
The pieces of Purple Heart I got were about twice the thickness I wanted for the frame, so I ripped them on the tablesaw.
Step 3: Plane the frame
Get them down to thickness using the planer.
Step 4: Cut the sides of the frame to length
Using the tablesaw, cross cut the frame pieces to length. Then set up the saw to do dados. You want to dado the top edge of all the pieces to accomodate the top of the board, I suggest that the top be around 3/8" so that it will actually resonate. I made my top too thick (around 1/2" and it isn't very harmonic.) You also want to dado the bottoms for a piece of 1/8" plywood. Finally you want to dado both ends of two sides of the frame to have it all fit together nicely.
Step 5: Fit and measure the frame, glue up the top
Fit all the frame pieces together to get the dimensions of your top and bottom pieces. (just doing the math to figure it out may leave you with gaps between the top and frame.) I bought a plank of Birdseye Maple for my top, so it had to be cut to length and glued together in order to get the square shape. I used biscuit joints for the top, in hopes that it would be stronger and resist warpage better.
Step 6: Cut the top to size
Once the glue has dried on the top, use the frame measurements and cut the top to size. Its better to cut it big, then slowly work it down to the perfect fit.