Ben Krasnow: Optical finish for acrylic — vapor polishing and other techniques. Ben writes -
I needed to polish two acrylic lenses that were made on a CNC lathe to the best possible finish (hopefully, optical quality). I made some test coupons and tried three different polishing techniques on three different surfaces to see which combination of techniques would yield the best results. The winner was clearly 2000 grit sandpaper followed by Novus No.2 polish.
Great video and excellent explanations, Ben is a Mechanical Engineer at Valve!
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