Joy of Mirror Making: Rough Grinding - BBAstroDesigns

31 rows  The curve is ground into the mirror face using a grinding tool. The curve is pre-generated for you. The curve is created by slumping the blank in a kiln over a mold. Here are 42 inch [107cm] and 30 inch [762cm] mirrors slumped and annealed to F2.8 ready for fine grinding.

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Joy Of Mirror Making: Rough Grinding

Vertical grinding mill. Ultra fine vertical grinding mill. MTW european grinding mill. MB5X158 pendulum suspension grinding mill. Trapezium mill

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Joy of Mirror Making: Fine Grinding - BBAstroDesigns

Run each grit size for about two hours; longer for large mirrors larger than 12 inches diameter. A fine grinding session is called a 'wet' and runs five to ten minutes long. Start with a thoroughly washed mirror and tool, placing the mirror on the bottom. Make sure the mirror's face is clean and dried.

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Joy of Mirror Making: Rough Grinding Mirror, Diy ...

Nov 21, 2020 - This Pin was discovered by Gerry Germishuizen. Discover (and save!) your own Pins on Pinterest

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Joy of Mirror Making - BBAstroDesigns

The Joy of Mirror Making Mel Bartels. Introduction Rough Grinding Fine Grinding Polishing

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Joy of Mirror Making: Introduction - BBAstroDesigns

Unless the mirror comes pre-generated, the initial curve will have to be ground into the mirror. A ring tool of half the diameter of the mirror used on top of the mirror's flat face with the coarsest grit will rapidly grind a spherical curve into the mirror. Grinding a 6 inch [15cm] mirror to F/2.8 using a ring tool.

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joy of mirror making rough grinding

Joy of Mirror Making: Rough Grinding - BBAstroDesigns31 rows The Joy of Mirror Making Mel Bartels Rough Grinding The first milestone is putting a curve into th. Toggle navigation. Home; About Us; Products; Cases; Solutions; Contact [email protected] Products. AS a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction ...

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Joy of Mirror Making: Rough Grinding Diy telescope ...

Nov 3, 2019 - Introduction to grinding polishing and parabolizing a telescope mirror. Nov 3, 2019 - Introduction to grinding polishing and parabolizing a telescope mirror . Pinterest. Today. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures. Log in. Sign up. Explore • Education ...

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joy of mirror making rough grinding - gleichgewicht-sachsen.de

Homemade Mirror Grinding Machine. Joy Of Mirror Making Rough Grinding BBAstroDesigns. Glass tools can stick and cause scratches in larger sizes.More importantly, the Limestone tool can be saved and used later as a mirror blank for a second project.Grinding stands.I use an old printer stand.Here is a 25 inch 635cm mirror being rough ground followed ...

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Joy of Mirror Making: Rough Grinding Diy telescope ...

Jun 9, 2018 - This Pin was discovered by omar. Discover (and save!) your own Pins on Pinterest

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Joy of Mirror Making - BBAstroDesigns

The Joy of Mirror Making Mel Bartels. Introduction Rough Grinding Fine Grinding Polishing

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Joy of Mirror Making: Introduction - BBAstroDesigns

The Joy of Mirror Making Mel Bartels Introduction The telescope and the toolmaker. Though our species isn't the only toolmaker on the planet, we have taken toolmaking to new heights. Stone tools go back 3.3 million years. Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors from Limestone. Making a telescope mirror is one of the most ...

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joy of mirror making rough grinding - kovoveda.it

Joy of Mirror Making: Rough Grinding . 22 Glass tools can stick and cause scratches in larger sizes. More importantly, the Limestone tool can be saved and used later as a mirror blank for a second project. Grinding Stands. I use an old printer stand. Here is a 25 inch [635cm] mirror being rough ground followed by a beautiful grinding stand from . Rough Grinding a 20" Quartz Telescope Mirror on ...

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joy of mirror making rough grinding

Joy of Mirror Making: Rough Grinding - BBAstroDesigns31 rows The Joy of Mirror Making Mel Bartels Rough Grinding The first milestone is putting a curve into th. Toggle navigation. Home; About Us; Products; Cases; Solutions; Contact [email protected] Products. AS a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction ...

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Joy of Mirror Making: Rough Grinding Diy telescope ...

Nov 3, 2019 - Introduction to grinding polishing and parabolizing a telescope mirror. Nov 3, 2019 - Introduction to grinding polishing and parabolizing a telescope mirror . Pinterest. Today. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures. Log in. Sign up. Explore. Education ...

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Joy of Mirror Making: Rough Grinding Diy telescope ...

Nov 21, 2020 - This Pin was discovered by Hans Snyder. Discover (and save!) your own Pins on Pinterest

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Joy of Mirror Making: Rough Grinding Diy telescope ...

Nov 21, 2020 - This Pin was discovered by Fonte de Ideias. Discover (and save!) your own Pins on Pinterest

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Joy of Mirror Making: Rough Grinding Diy telescope ...

Nov 21, 2020 - This Pin was discovered by Gerry Germishuizen. Discover (and save!) your own Pins on Pinterest

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wed joy of mirror making fine grinding

Joy of Mirror Making: Fine Grinding BBAstroDesigns 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

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joy joy of mirror making fine grinding

Joy of Mirror Making: Rough Grinding BBAstroDesigns. 31 rows The curve is created by slumping the blank in a kiln over a mold. Here are 42 inch [107cm] get price. MIRROR DIAMETER 2.5 3 3.5 40.1000.0830.07260.1500.1250.10780.2010.1670.143100.2510.2090.179See all 31 rows on bbastrodesigns. Joy of Mirror Making: Polishing BBAstroDesigns . The Joy of Mirror Making Mel

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Joy of Mirror Making: Polishing - BBAstroDesigns

The Joy of Mirror Making Mel Bartels Polishing Polishing a mirror is one of the great joys you will experience as a maker and builder. It's also arguably the most accurate surface made by man or machine. If the mirror is expanded to the size of a football field, then the mirror’s surface will be smooth to 1/1000 inch or 1/30 millimeter! Polishing a 10.5 inch [27cm] F/2.7 plate Limestone meniscus ...

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joy of mirror making rough grinding

Joy of Mirror Making: Rough Grinding - BBAstroDesigns31 rows The Joy of Mirror Making Mel Bartels Rough Grinding The first milestone is putting a curve into th. Toggle navigation. Home; About Us; Products; Cases; Solutions; Contact [email protected] Products. AS a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction ...

Get Price

joy of mirror making rough grinding - gleichgewicht-sachsen.de

Homemade Mirror Grinding Machine. Joy Of Mirror Making Rough Grinding BBAstroDesigns. Glass tools can stick and cause scratches in larger sizes.More importantly, the Limestone tool can be saved and used later as a mirror blank for a second project.Grinding stands.I use an old printer stand.Here is a 25 inch 635cm mirror being rough ground followed ...

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Telescope Mirror Making: Part 3, Rough Grinding - YouTube

2012-09-23  After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with 60/90 grit. The wets are lasting about 90 second...

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Rough Grinding – Fine Grinding Telescope Building

Rough Grinding – Fine Grinding. I built a “grinding board.”. It raises the grinding level seven inches above the table top for the sake of my back. I made it out of particle board scrap. I found a 17″ round of pine at Home Depot for $4. The disk sits on three furniture slides hammered into the particle board box.

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The Mirror: Grinding, Polishing, Figuring Telescope Building

The Mirror: Grinding, Polishing, Figuring. In regular visits through the winter I began the grinding, polishing, and figuring the mirror blank to astronomical standards. After forty-five hours of my “pushing Limestone,” the experts declared the mirror finished once it reached 1/6 wavelength through Foucault testing.

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joy joy of mirror making fine grinding

Joy of Mirror Making: Rough Grinding BBAstroDesigns. 31 rows The curve is created by slumping the blank in a kiln over a mold. Here are 42 inch [107cm] get price. MIRROR DIAMETER 2.5 3 3.5 40.1000.0830.07260.1500.1250.10780.2010.1670.143100.2510.2090.179See all 31 rows on bbastrodesigns. Joy of Mirror Making: Polishing BBAstroDesigns . The Joy of Mirror Making Mel

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Prepping to Grind Telescope Building

Finally work as slowed down just enough that I could slip away on Tuesday (10/29) to check in at the mirror grinding workshop. I brought my blank along. I consulted about how to start, and as a result I decided I should build a box to store the mirror and tool in and, before making a tool out of dental cement, I would need to acquire a metal ring to hog the blank out before it would be ready ...

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Stellafane Links Page

JoeAstro Mirror Grinding; Joy of Mirror Making Rough Grinding by Mel; Joy of Mirror Making Fine Grinding by Mel; Large Thin Mirror Grinding; Making a 110mm f/7 by Arjan; Making a 150mm f/4 by Arjan; Making a 250mm f/6.4 by Arjan; Mirror Grinding by P.N.

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Rough Grinding a 20" Quartz Telescope Mirror on the Fixed ...

2010-03-07  This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, you'll see how abrasi...

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