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    Polishing is one of the procedures that can give Van the most joy: "seeing the quality of grinding, but it can also be the most frustrating." Polishing removes the finest of scratches to give a mirror finish. ASSEMBLY: At the assembly one sees all the hard work come together and giving you the pride and reward of working on a piece of art.

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  • Joy of Mirror Making: Fine Grinding

    2017-4-4 · Fine Grinding The goals of fine grinding are to prepare the curved mirror face so that it is ready for polishing and figuring and make any adjustments of the focal length. Previously in rough grinding we deepened the center of the mirror's face either by grinding with coarse grit and a tool, slumping in a kiln over a mold, or purchasing the

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  • Joy of Mirror Making: Rough Grinding BBAstroDesigns

    2019-1-22 · Stop just before desired depth: about 5/6 of the way towards the goal is good. The center will deepen during the first stage of fine grinding as contact is achieved across the mirror face and fine grinding tool. On larger mirrors, the ring tool may leave the zones part way to the edge a

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    This is part 2 of my video series documenting grinding and polishing a inch telescope mirror. I'm using a spin or fixed post grinding machine. This video shows a few initial stages of making a primary mirror for a telescope. After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with grit.

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