Today I fabbed up the Walnut side pieces. They're pretty straight forward with a little arch cut into the bottom. But they have a shelf piece on the top that will stick out about 3/8" over the side, and will also cover about 3/16" of the plinth core as well, so as not to leave any gap where the Walnut side meets the Burled Maple top.
I'm not sure if that makes sense, but here's a side view drawing...
They're in clamps now, but should get installed tomorrow w/pics to follow.
But just so I don't leave you empty handed, here are some pics of the holes I milled underneath the plinth to hold the shot fill damping. I knew it would be a PITA to do once the sides were in place, so I made the decision to go ahead with them. The caps are 1/4" plywood and should hold the shot in place fine.
After I install the Walnut side pieces I'll start milling the 2" square corner pieces that will also hold the cone feet. Then the armboard will finish up the woodwork.
I've decided to try out a new finish. I'm a big fan of the DIY network's show "Woodworks" and it's host David Marks is an incredible woodworker. He gives the brand names of the finish products he uses on the website, and it's not pure Tung Oil (he says he's used these products since 1984). There are two products by the same manufacturer, one is a sealer and the other is a top coat. They are oil based finishes, but with urethane and other additives. One coat of sealer and four coats of the top coat w/0000 steel wool buffings in between. They are in transit, but should arrive early this week, and I'll let you know what I think of them.