At long last, we've updated the ANSI accumulator. The 2013 version has two sheets in the workbook one for
visibility specifications (ANSI OP1.002 visibility or MIL-PRF-13830B), and one for dimensional specifications (ANSI
OP1.002 dimensional, or MIL-C-48497A.) Feel free to download the new version, to the right. As always, this is
offered free and without warranty.