• Can You Do It? Make your own telescope mirror, that is?

    Can You Do It? Make your own telescope mirror, that is? by Doug Scobel Printed in Reflections: June, 2003.. Make your own Newtonian telescope mirror that is? Most people think it is such a daunting task that they never even consider it.

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  • spin polishing making a perfect edge RadDobs

    A picture being some K better, here's one of a mirror that's undergoing final polishing prep before figuring today. This is a fixed quill (static position) polishing machine (Derek) doing edge preparation on a " f/ fused silica mirror. The aft end of the overhead channel pivots via an automobile ballend joint.

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  • Christiaan Huygens and his telescopes

    Christiaan Huygens and his telescopes Peter Louwman Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands As an amateur astronomer myself, I have personally always been very interested in the early development of the telescope in the 17th century. I ... Lensgrinding machine .

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  • Document sans nom Astrosurf Astronomie

    Grinding action of a polishing lap : ... During polishing and figuring of telescope mirrors the translation movement is generally chosen, because of its overall effect, preferably to the rotation movement, with its nonlinear wearing off effect, which is hard to control to obtain a regular shape, free of zonal defects. ... Machines are not ...

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  • From the kiln of Horace Davis Mirror Grinding Machine

    His kiln is computer controlled to follow any schedule of temperature vs time. I couldn't help him with the former, but I could the latter. I had an idle mirror grinding machine (a modified MOM 20), so I volunteered to grind and polish his blanks and check for strain using the crosspolarized light test.

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  • CNC Grinding Machine |

    Most of the grinding machines are ground using highspeed rotating grinding wheels. A few are processed with other abrasives such as oilstone, abrasive belts and free abrasives, such as honing machines, superfinishing machines, belt grinding machines, grinding machines and polishing machine .

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  • CNC telescope mirror grinder. [Archive] ...

    Recently I bought a new telescope for my son. It has a 12 inch diameter mirror. While the telescope looks expensive because of its size (6 feet long), essentially its a tin can with a big mirror and a few lenses. The most expensive part of the telescope is the mirror. It probably makes 80% of the cost. I am told these mirrors so ground accurate that even cleaning the dust off then should be ...

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  • Slotted Block for the MirroroMatic telescope mirror ...

    Dec 20, 2015· If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. This is a slotted block for the MirroroMatic telescope mirror grinding and polishing Dennis Rech. You can look at for the information, plans and ...

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  • Grinding Machine for Large Telescope Mirrors | 3D Warehouse

    Grinding machine for mirrors up to 42 inches [] in diameter. Can be configured for spin or stroke work.

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  • Telescope Making Wikibooks, open books for an open world

    The focal length depends on the choices made while thinking about the telescope. The focal length is set by the shape of the curve in the front of the main mirror. We make that curve by grinding the mirror. The amount of grinding and the depth of the curve are both directly affected by the choices made while thinking about the telescope.

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  • 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 Observatory.

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  • Grinding and polishing machine for the Hooker Telescope ...

    Grinding and polishing machine for the Hooker Telescope mirror, . by . Museum quality art prints with a selection of frame and size options, canvases, postcards and mugs. SSPL Science and Society Picture Library

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  • The Rosse sixfoot telescope, was the largest telescope in ...

    Jul 29, 2016· Leviathan of Parsonstown is the unofficial name of the Rosse sixfoot telescope. This is a historic reflecting telescope of 72 in ( m) aperture, which was the largest telescope in the world from 1845 until the construction of the 100inch ( m) Hooker Telescope in 1917.

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  • Used Grinding Machines | Metal Grinders for Sale

    The first grinding machines were used in the 12 th century as grinding mills, which were converted from conventional grinders. Cylindrical Grinding machine for metalworking. Areas of Application of Metal Grinding Machines. There are a number of different types of grinding machines for sale for sheet metal work, and they are applied for various ...

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  • Stellafane ATM: Guide to Strokes

    Guide to Strokes Introduction. This page will provide a quick reference guide to common mirror making strokes. We aim to provide text, diagrams and a short video of each stroke, explaining when it is used and showing how to do it. The videos on this page are of file type .WMV for use with Windows Media Player.

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