Wanted to insure that the final drilling in the Center and Main Wing Spars was true and square so to insure that I moved the Drill Press to the work table. Built an elevated table to what would be normal drilling table position. I can now put a spacer between it and the spar to insure full level and drill away - confident they'll be square and true. Took a couple of hours. 1st to figure the right heigth and width but was simple to build from there. I can lowe this same table to the level of the solid rivet set - when I'm done drilling (blue tool in pic's) and insure that I set the solid rivets true and square.