ritchey telescope mirror grinding machine
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ritchey telescope mirror grinding machine

Mirror Grinding Machine, G. W. Ritchey National Air and ...

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine

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Mirror Grinding Machine, G. W. Ritchey Smithsonian ...

Mirror Grinding Machine, G. W. Ritchey. National Air and Space Museum. Addthis Share Tools

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Ritchey Telescope Mirror Grinding Machine - YouTube

14/06/2009  Excerpt from VHS video made at the Lick Observatory optical shops in Santa Cruz, CA before the object was acquired by the Smithsonian. Circa 1985.

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Mirror Grinding Machine, G. W. Ritchey - a photo on Flickriver

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin in the late 1890s. Under the sponsorship of George Ellery Hale the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to Pasadena in 1904 ...

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10Inch Ritchey Chretien Cassegrain ATM Project

Grinding started with 220 grit and in less than 1 hour full contact was established between the mirror and all the grinding tiles. Grinding of the secondary mirrors stared at 80grit even before the primary was joining in. As the secondary diameter is about 4inch the required radius was reached in 30minutes. The back sides were also ground and raw polished so that later interference fringe testing could be

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telescope mirror grinding machine - BINQ Mining

Ritchey Telescope Mirror Grinding Machine – YouTube. Excerpt from VHS video made at the Lick Observatory optical shops in Santa Cruz, CA before the object was acquired by the Smithsonian. Circa 1985. »More detailed. Homemade polishing machine,Grinding 10" pyrex telescope mirror Browse videos from the previous page, including the homepage feed, channel videos and search results.

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Mirror Grinding Machine, G. W. Ritchey Smithsonian ...

Mirror Grinding Machine, G. W. Ritchey. National Air and Space Museum. Addthis Share Tools

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Mirror Grinding Machine, G. W. Ritchey Smithsonian

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to Pasadena in ...

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Mirror Grinding Machine, G. W. Ritchey - a photo on

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin in the late 1890s. Under the sponsorship of George Ellery Hale the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to Pasadena in 1904 ...

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Mirror Grinding Machine, G. W. Ritchey George Willis ...

25/05/2008  George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin in the late 1890s. Under the sponsorship of George Ellery Hale the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to

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10Inch Ritchey Chretien Cassegrain ATM Project

Grinding started with 220 grit and in less than 1 hour full contact was established between the mirror and all the grinding tiles. Grinding of the secondary mirrors stared at 80grit even before the primary was joining in. As the secondary diameter is about 4inch the required radius was reached in 30minutes. The back sides were also ground and raw polished so that later interference fringe testing could be

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telescope mirror grinding machine - BINQ Mining

Ritchey Telescope Mirror Grinding Machine – YouTube. Excerpt from VHS video made at the Lick Observatory optical shops in Santa Cruz, CA before the object was acquired by the Smithsonian. Circa 1985. »More detailed. Homemade polishing machine,Grinding 10" pyrex telescope mirror Browse videos from the previous page, including the homepage feed, channel videos and search results.

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Ritchey Telescope Mirror Grinding Machine

Ritchey Telescope Mirror Grinding Machine Caesar. Replicating ritchey mirror grinding machine atm optics. mar 06 2006 replicating ritchey mirror grinding machine posted in atm optics and diy forum ive just returned from a few days with friends in washington dc being aviators and aircraft builders we blew a whole day at the new air space museums new annex at dulles really caught my attention ...

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Mirror Grinding Machine

My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telescope mirrors. Dennis Rech's M-o-M designs finally inspired me to just get up and do it. Over the years, I'd been collecting motors, gear boxes, pulleys, etc. Most of them came from industrial junk yards. To use these parts, I had to modify some of Dennis' plans. How I did it is described below. This machine is the result. It is capable of grinding up to 20" telescope mirrors

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Making mirrors for giant telescopes - SPIE Digital Library

The St. Gobain glassworks was comfortably able to pour and anneal the 800 kg blank. Hale had hired George Ritchey as optician and telescope builder at Yerkes. The two moved to Mt. Wilson after Hale’s Solar Observatory was established there, and Ritchey figured the 60 inch mirror with no great difficulty. In doing so he established methods that became the standard for more than 50 years, including

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Astro-Tel - Mirror grinding machine

MIRROR GRINDING MACHINE. I made my first mirror grinding and polishing machine over thirty years ago. It used the working principle of the machine illustrated at "A" Fig.3, Page 163, "Amateur Telescope Making" Book 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type. Also a Hindle type machine for a southern firm to grind and polish 12.5" mirrors ...

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Mirror Grinding Machine, G. W. Ritchey Smithsonian ...

Mirror Grinding Machine, G. W. Ritchey. National Air and Space Museum. Addthis Share Tools

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Mirror Grinding Machine, G. W. Ritchey Smithsonian

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to Pasadena in ...

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Mirror Grinding Machine, G. W. Ritchey - a photo on

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin in the late 1890s. Under the sponsorship of George Ellery Hale the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to Pasadena in 1904 ...

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Mirror Grinding Machine, G. W. Ritchey George Willis ...

25/05/2008  George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin in the late 1890s. Under the sponsorship of George Ellery Hale the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine was moved to

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Mirror Grinding Machine

My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telescope mirrors. Dennis Rech's M-o-M designs finally inspired me to just get up and do it. Over the years, I'd been collecting motors, gear boxes, pulleys, etc. Most of them came from industrial junk yards. To use these parts, I had to modify some of Dennis' plans. How I did it is described below. This machine is the result. It is capable of grinding up to 20" telescope mirrors

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Machine For Grinding Telescope Specula

Mirror Grinding Machine G W Ritchey National Air And . George willis ritchey built this mirror grinding machine at the yerkes observatory in williams bay wisconsin in the late 1890s under the sponsorship of george ellery hale the machine was used to grind a series of telescope mirrors starting with a 24inch and then a 60inch mirror for a telescope initially intended for the yerkes. Get Price ...

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Astro-Tel - Mirror grinding machine

MIRROR GRINDING MACHINE. I made my first mirror grinding and polishing machine over thirty years ago. It used the working principle of the machine illustrated at "A" Fig.3, Page 163, "Amateur Telescope Making" Book 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type. Also a Hindle type machine for a southern firm to grind and polish 12.5" mirrors ...

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Mirror-o-Matic mirror making machine - ATM pages of ...

Mirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.

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Fixed post mirror grinder advice - DIY Astronomer ...

01/11/2011  An alternative, which seems very popular with home machine builders, involves rotating the mirror at a relatively high speed whilst the tool has minimal movement or is fixed (as in the case of Gordon W’s machine). The trick is to place a correctly sized tool in the appropriate position to ensure an even grind/polish. With both machines I am assuming the mirror is being worked face up with a ...

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Large Thin Mirror Making - BBAstroDesigns

In addition, a great deal of money will be saved: a finished 24" scope will set you back $7,000; grinding your own mirror and building the mount yourself will cost you $2,000. Amateurs have made mirrors up to 41" by hand. A grinding machine relieves the labor, but is not necessary. A 24" is the largest you can comfortably do solo. Larger ...

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