Replacement of Flash 500 glass table top with special tooling. Cross shaped subplate replaced glass table top. Flat and parallel within .0001″ on all contact surfaces. Middle had Flatspin rotating fixture with custom System 3R Stainless Steel Matrix reference chuck. Custom surface gage on right side for manually presetting the workpiece. Left side block is counter balance for the surface gage so when complete assembly flexed it remained parallel to the contact surfaces.