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5/25/2007 - Primary Mirror Test Data
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ENTRY PICTURES
Phase Map and Interferogram Test data summary.
On to some other stuff. Here the solid maple Split Blocks (lower truss pole seats) get a coat of Sanding Sealer. This soaks into the maple, raises the grain, protects the wood from moisture and provides a good binder for the clear Polyurethane finish (ready for first of 3 coats in bottom picture). Yours Truly applies Clear Polyurethane. Bottom picture shows how 3 coats of semi-gloss poly bring out the beautiful natural accents of the maple. The finish will also protect the wood for years.

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