Mirror Grinding Promotional

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    For hogging out, we start with the "chordal stroke" Put the tool on the bottom, add half a teaspoon of #80 grit, sprinkle with water and place the mirror center near the edge of the tool Use 1/3 mirror diameter strokes This means that stroke is 1/3 length in total , 1/6 forward, 1/6th backwards

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  • Fast Mirror Grinding & Polishing The ATMs Workshop

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  • Joy of Mirror Making: Rough Grinding BBAstroDesigns

    Grinding the curve into the mirror face can be done by one of the following approaches: Ceramic tiled tool ground against the mirror face Glass tool ground against the mirror face Ring tool Motorized grinding wheel on the end of along boom that is anchored that is moved back and forth across the mirror

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    11052017· A continuing class/workshop that will help you until you finish is nice if there is a skilled maker mentoring as you work And even if the mentors skill is not high, two or more people can work together and support each other as they all learn Find a friend who would like to make a mirror

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  • Telescope mirror grinding

    24032016· Here, we show how we are grinding the back of a mirror flat, using the 'fixed post grinding', method

  • 作者: Danny Jones
  • 16" first time mirror grind? DIY Astronomer Stargazers

    22012013· A 16" f/5 has a sagitta of 5mm so the glass at the centre of your mirror will only be 20mm max thick at the end of coarse grinding The next grinding grade or two will take off a bit more thickness Experience with smaller mirrors always helps which is

  • Stellafane ATM: Fine Grinding

    A typical grit sequence for an 8" mirror that did rough grinding with #60 grit would be: Silicone Carbide: #80, #120, #220 Aluminum Oxide: 32, 20, 12, 5 micron Often, #320 Silicon Carbide is used instead of 32 micron Aluminum Oxide, and #500 is used instead of 20 micron; any of these combinations will work well

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  • Mirror Grinding | Telescopes and Stuff

    By continuously grinding the surface with grits and the tool, the glass becomes concave as the center is rubbed more often compared to the edged, and more glass is worn off The grit size is incrementally reduced, from 80 at the beginning, to 2 microns at the end, as the mirror reaches the desired radius of curvature (and focal length – the distance from which light reflected off the mirror

  • Mirror grinding | Telescope, Mirror, Homemade

    Dec 27, 2020 telescope making, mirror grinding, homemade tripod, eyepieces, astronomy

  • Mirror Grinder | Light Weight Telescopes

    This is photos on the Mirror Griding Machine I have built The tool I built is called MOM20 This is a photo of a 20 inch mirror being ground

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