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mirror grinding reflector

mirror blank suppliers in the uk Stargazers Lounge

Jun 20, 2013It involves a lot more Mirror-on-top grinding and neatness after changing grits as there is not much room to go back and correct mistakes. One also needs to be more careful about the flatness of the polishing platform compared to a 2 thick pane to avoid astigmatism (I used a 600mm x 600mm x 40mm concrete flagstone I found lying around in my

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Astro-Tel Mirror grinding machine Ray Hall Turbocharging

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.

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Reflector Repair Astro-Tom

You can get a dobsonian mount reflector and 77% more light gathering area with an optical surface that has been most likely configured by a modern optical grinding machine. Alternatively, you could make your own 6 reflector in about 2 3 weekends, have the mirror silvered for about $150, but you would enjoy the scope even more because you

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Telescope making

Mirror grinding techniques There are many reasons for grinding your own mirror. Either you want a unusual size, or focal length, or to satisfy your curiosity, or to have the pride of achievement by fabricating something as precise as a telescope mirror. 300 mm Dobsonian This is my main telescope.

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Mirror Industries

A single purchase order ensures your project is done right the first time saving you time, money, and eliminating sub-contract mark-ups. Our extensive machine shop and experienced staff enable Mirror Industries to meet most all of your maching and hard chrome plating needs.

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Joy of Mirror Making Polishing BBAstroDesigns

The Joy of Mirror Making Mel Bartels Here is a 25 inch mirror on top of the fine grinding tool with pads applied. And here is the result after 5 hrs of machine polishing starting from a 20 micron aluminum oxide grind. Note that the edge is not as reflective. Materials Needed.

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GSO Parabolic Primary Mirror 6 f/8 AgenaAstro

Besides parabolic primaries, we also offer matching GSO secondary elliptical mirrors, mirror cells, and spiders (all sold separately). Please Note Most parabolic mirrors will have 2-4 minor uncoated areas along the edge of the mirror. See photo 2 above for an example. These are caused by the clips used to hold the mirrors in the coating chamber.

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Obsession Telescopes / Optics

About our mirror suppliers. Obsession Telescopes feature primary mirrors made by two of the best established and most reputable optical companies serving the astronomy community today. Optical Mechanics Inc. (OMI) supplies Obsession with 12.5 to 25 aperture mirrors. Ostahowski Optics supplies Obsession with 15 to 22 aperture mirrors.

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Reflectors How Telescopes Work HowStuffWorks

Reflectors have large light gathering capacities, and can produce bright images of faint, deep-sky objects for visual observing as well as astrophotography. One disadvantage of reflectors is that you occasionally have to clean and align the mirrors. Also, slight errors in grinding the mirrors can distort the image.

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Mike's Telescope Workshop mdpub

Welcome to Mike's Telescope Workshop This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank

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Cleaning a Telescope Mirror A New Technique

CLEANING MIRRORS. A new technique for entire mirrors or just small areas and minor spots . The bathing technique described elsewhere on this site works very well for a general cleaning but bathing has been suspected of allowing water to get under the coating if excessive cleaning is done.

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How does the Dobsonian telescope work? Quora

Aug 07, 2015Most people have pointed out that a Dobsonian is optically just a Newtonian telescope on a simple mount. You can read about the optical layout on the Wikipedia page Newtonian telescope But I think a little expansion about Dobson and the mount

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Optical System Design S15 Reflector Telescopes

Reflector Telescopes Joseph A. Shaw Montana State University Reflector Telescope Design mirrors have no chromatic aberration (same telescope useful in uv-vis-IR) mirrors have high reflectance over a Grinding part of a 6-year process to make the mirror 29 .

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L07 Reflectors Stuart Littlefair

Mirrors are usually made of a rigid, hard (i.e. polishable) material with a low thermal expansion coefficient (such as the glass Pyrex), and coated with a thin layer of aluminium, silver or gold to give high reflectivity. A telescope which uses a mirror to collect and focus light is known as a reflector. Reflectors, are not aberration free

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Hand Grinding a Telescope Mirror Make

May 30, 2014Hand Grinding a Telescope Mirror. Nathan Hurst. Nathan Hurst is an editor at Make. He loves anything having to do with science or bicycling. He tweets as @nathanbhurst. View more articles by Nathan Hurst . By Nathan Hurst. Nathan Hurst. Nathan Hurst is an editor at Make. He loves anything having to do with science or bicycling.

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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.

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Telescope Mirror Grinding Machine Products Suppliers

Find Telescope Mirror Grinding Machine related suppliers, manufacturers, products and specifications on GlobalSpec a trusted source of Telescope Mirror Grinding Machine information.

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DOBSONIAN TELESCOPE OPTICS Webster Telescopes

The other thing you get from the Webster Telescopes/Kennedy Optics team that you won't get anywhere else is (we saved the best for last) YOU GET THE VERY SAME SECONDARY MIRROR THAT WAS USED TO FIGURE YOUR PRIMARY MIRROR! That's right, the ENTIRE optical path is delivered to you just as it was during fabrication.

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Automotive Mirrors Reflectors Pleasants Hardware

Custom Accessories Blind Spot Mirror 71111. 2WIDE ANGLE SPOT MIRROR. Item # 576212. Model # 71111

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How the Enormous Mirrors on the World's Largest

And nowhere is that more apparent than in the telescope's enormous mirror system. How the Enormous Mirrors on the World's Largest Telescope Are Made casting the mirrors, grinding

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Pressure-formed Parabolic Mirror From A Mylar Blanket

Jul 26, 2016Pressure-formed Parabolic Mirror From A Mylar Blanket Didn't they used to have monks grinding parabolic mirrors over many, many years

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How will you know when you telescope mirrors need re

Jul 21, 2006I have read that telescope mirrors require periodic re-aluminizing. How will I know when mine needs this? While it's true that the aluminized surface of a telescope mirror will deteriorate over

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Dick Parker's Telescope Mirror Workshop Refractor

The process is exactly like grinding a mirror at this stage. The only difference is that the first job is to work the wedge out of each piece. Correction for wedge is done by favoring pressure along the thick side of the element for some of the grinding. Also it is important to watch carefully the segitta and overall thickness of the glass.

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The Best of Amateur Telescope Making Journal edited by

Nor is it for someone seeking basic instruction on grinding a mirror for a Newtonian reflector or for building a standard Dobsonian telescope. These books are the literary equivalent of a telescope makerœ's junk box—a prized collection of bits and pieces squirreled away on the assumption that they will one day be useful for something.

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() Grinding of aspherical SiC mirrors researchgate

This paper describes the methods using bonded cup wheels for grinding toroidal and cylindrical SiC mirrors with large curvature radii. Since the angle between the cutting direction of bonded

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How To Collimate Mirrors On Newtonian Reflector

How To Collimate Mirrors On Newtonian Reflector. October 28, 2018 By Peter Danek . Collimation is the alignment of the telescope optics. It means you have to adjust both primary and secondary mirror to get the best image possible. For some people, collimation is a nightmare and many times they buy refractor instead of a reflector because of

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Parabolic Mirror Grinding Machines Products Suppliers

Find Parabolic Mirror Grinding Machines related suppliers, manufacturers, products and specifications on GlobalSpec a trusted source of Parabolic Mirror Grinding Machines information.

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Reflector Telescopes Newtonian Reflector Telescopes

Many reflecting telescopes also feature a secondary mirror, such as RitcheyChrtiens, Dobsonians, Dall-Kirkhams, and many other styles. The secondary mirror can be curved, like a Cassegrain or flat, like a Newtonian, depending on the reflecting telescope design.

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Waite Research Telescope Mirrors Home

Recycling Pitch for Laps for the the 20 Quartz mirror. Pouring a 15 Pitch Lap. Channeling a 15 Pitch Lap. Fine Grinding a 20 Quartz Telescope Mirror. Rough Grinding on the Fixed-Post Mirror Grinding Machine. Hogging the Curve on a 20 f/4.5 Quartz Telescope Mirror

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Download Reflector 3 screen-mirroring software

Add screen mirroring to any Mac or Windows computer with Reflector 3. Download the official screen-mirroring receiver here.

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