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Nov 06, 2013018332Page 1 of 2 24 F6 thin telescope mirror grinding 34 plate posted in ATM, Optics and DIY Forum A friend and I have decided to grind this as a fun yet challenging project. I have ground and polished several mirrors including a 6, 8.5, 9.2, and 14.7 quartz mirror. I have decided to take the next step with this ultrathin setup. I know it is bordering on the edge of extremely thin with a 32 ...

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24 quot  F 6 thin telescope mirror grinding 3 4 quot  plate   ATM

24 quot F 6 thin telescope mirror grinding 3 4 quot plate ATM

Nov 06, 2013018332Page 1 of 2 24 F6 thin telescope mirror grinding 34 plate posted in ATM, Optics and DIY Forum A friend and I have decided to grind this as a fun yet challenging project. I have ground and polished several mirrors including a 6, 8.5, 9.2, and 14.7 quartz mirror. I have decided to take the next step with this ultrathin setup. I know it is bordering on the edge of extremely thin with a 32 ...

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Mirror Grinding   Take A Class Or DIY    Page 2   ATM

Mirror Grinding Take A Class Or DIY Page 2 ATM

Aug 01, 2020018332Page 2 of 3 Mirror Grinding Take A Class Or DIY posted in ATM, Optics and DIY Forum Thanks Ed. Having taught over 30 years a ATM class and 50 years professional, Read all you can, there are many paths one can follow making mirrors. I like All about Telescopes because its simple and has great drawings of what to expect. It is a hand based skill, anyone can cut down a tree, but …

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King Telescopes  telescope mirror blanks  using both

King Telescopes telescope mirror blanks using both

Our intent is to provide a source for lower cost, mirror blanks, and supplies for grinding your own telescope mirror. If I had known as a kid how, well not easy, but indeed not as hard as I would have expected to grind my own mirror. I sure would have had a much nicer scope then. At present we have a supply of high quality Pyrex mirror blanks.

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How To Sand and Polish Aluminum To Mirror Finish   YouTube

How To Sand and Polish Aluminum To Mirror Finish YouTube

In this video, we sand and polish an aluminum sheet from 220 grit all the way to 5000 grit sandpaper then polish using Gords Aluminum polish. All the links ...

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Telescope Mirror Blanks   TelescopeMirrorBlanks Com

Telescope Mirror Blanks TelescopeMirrorBlanks Com

Telescope Mirror Blanks Providing telescope mirror blanks and kits to telescope makers. Mirror blanks are individually tested for internal strain. Plastic protractor inserted under a 6 inch mirror blank during a stress test, to illustrate what stress would look like if there were any present.

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Telescope Making Supplies

Telescope Making Supplies

Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size. However, no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a firstclass telescope objective. Different techniques are …

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www jeffbaldwin org

www jeffbaldwin org

Fixedpost machine grinding is where the mirror is on a turntable rotating around 20 PRM speeds vary, and a 75 tool is on top. They are already curvegenerated. The tool is hanging over the mirror by 16 the diameter of the tool, or about 18 diameter of the mirror, and is fixed in this position.

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Build your own telescope part 1  The mirror – Thomas

Build your own telescope part 1 The mirror – Thomas

The problem with thin mirrors is that they flex more easily during grinding and polishing, making it hard to achieve the required surface precision. They also need a more complex mirror cell additional support points. Plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass

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Telescope Mirrors   Orion Optics

Telescope Mirrors Orion Optics

Primary Mirror Dimensions. Primary Mirror type. Focal length nominal mm. Edge thickness mm Diameter mm. Weight g. Ultrascope 150 f4. 600. 18. 151. 745. 150 f5. 750 ...

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Stellafane ATM Main Page

Stellafane ATM Main Page

Grinding a Mirror quotFor it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is also true that if an amateur starts out to build a telescope just for fun he will find, before his labors are over, that he has become seriously interested in the ...

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Grinding Plate Finnish Translation   Examples Of Use

Grinding Plate Finnish Translation Examples Of Use

Translations of the phrase GRINDING PLATE from english to finnish and examples of the use of quotGRINDING PLATEquot in a sentence with their translations ...is given by the ceramic grinding plate .

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mirror grinding globalspec  250 tons crusher250 tph

mirror grinding globalspec 250 tons crusher250 tph

mirror grinding globalspec, 250 tons crusher250 tph crusher cone. tons 100 tons of manganese ore crusher kohinoor . Manganese Ore Crusher 1000 Tonnes Production Line. Manganese ore crusher 1000 tonnes 1000 tons of manganese ore crusher.The gulin product line, consisting of more than 30 machines, chat now what is nickel ore used for crusher ...

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How to Sand And Polish Stainless Steel to Mirror Finish

How to Sand And Polish Stainless Steel to Mirror Finish

In this exciting video, we sand a stainless steel sheet to 5000 grit then polish using Gords Aluminum Polish. All the links below are affiliate links and wil...

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Letest Rise Grinding Machine

Letest Rise Grinding Machine

Grinding On the picture below the machine is fine grinding an 8 inch mirror with an 71 tool 143 mm diameter and 9 micron aluminium oxyde. The bent lines on the mirror are the effect of the tool turning with respect to the mirror faster at the central part of the mirror as compared to the edge ones.

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Mirror Grinding Machine   Hackaday

Mirror Grinding Machine Hackaday

Sep 26, 2006018332Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built this mirror grinding machine from scratch.

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Tips on Fine grinding Stainless Steel   Canadian Metalworking

Tips on Fine grinding Stainless Steel Canadian Metalworking

Oct 17, 2016018332The final step in achieving a mirror finish on a stainless steel tube is using a buffing wheel and a polishing paste. Fine grinding, by definition, is the blending of the weldment to the surface of the metal for a smooth, consistent, and attractive appearance. When you are working on stainless steel grades, whether for appliances, structural ...

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Sheet  amp  Plate Metal Polishing Services – Williams

Sheet amp Plate Metal Polishing Services – Williams

Williams Metalfinishing performs automated and manual metal polishing services, for directional grain, nondirectional grain and mirror applications. To meet the growing demand, we specialize in polishing large size sheets and plates up to 144″ wide and 240″ long. We’ve also strategically developed a unique niche with our focus on 84″ wide sheets.

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Metallographic grinding and polishing insight   Struers com

Metallographic grinding and polishing insight Struers com

Fine grinding produces a surface with little deformation that can easily be removed during polishing. Because of the drawbacks with grinding papers, alternative fine grinding composite surfaces are available, in order to improve and facilitate fine grinding, A high material removal rate is obtained by using grain sizes of 15, 9.0 and 6.0 181m.

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Ultra precision grinding   ScienceDirect

Ultra precision grinding ScienceDirect

Jan 01, 2010018332In ultraprecision grinding the application of grooved grinding wheels is mainly surface finishing, wafer grinding, thinning and mirror grinding with cup wheels. 4.2.4. Dicing blades. Dicing blades with thickness of 10 μm–1 mm are used for precision cutoff grinding.

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Letest Rise Grinding Machine

Letest Rise Grinding Machine

Grinding On the picture below the machine is fine grinding an 8 inch mirror with an 71 tool 143 mm diameter and 9 micron aluminium oxyde. The bent lines on the mirror are the effect of the tool turning with respect to the mirror faster at the central part of the mirror as compared to the edge ones.

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Telescope Mirrors  Blanks  Secondaries  Grinding Materials

Telescope Mirrors Blanks Secondaries Grinding Materials

Aluminium oxide grinding powder per kilo 40AUD Tin oxide grinding powder per kilo 30AUD Pumice grinding powder per kilo 30AUD 80 Grade grinding powder per 8quot mirror 2AUD 120 quot quot 2AUD 220 quot quot 3AUD 320 quot quot 4AUD 500 quot quot 6AUD 1000 quot quot 8AUD …

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Optical Testing of Parabolic Mirrors   9 Steps  with

Optical Testing of Parabolic Mirrors 9 Steps with

A mirror mount is needed to hold the mirror during testing. If the mirror is a thin mirror i.e. the thickness is much less than 18th its diameter then the mount must hold the mirror without deforming it. The weight of the glass can deform a thin mirror. In my case, I was making a fullthickness mirror, which is a mirror whose thickness is 18th the diameter or more, so mirror deformation ...

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Build your own telescope part 1  The mirror – Thomas

Build your own telescope part 1 The mirror – Thomas

The problem with thin mirrors is that they flex more easily during grinding and polishing, making it hard to achieve the required surface precision. They also need a more complex mirror cell additional support points. Plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass

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Telescope Mirrors  amp  Prisms for sale   In Stock   eBay

Telescope Mirrors amp Prisms for sale In Stock eBay

Buy Telescope Mirrors amp Prisms for Labor Day. This Labor Day browse through great selection of cameras, lenses, and photography and film equipment. Shop for Tamron 1530mm Camera Lenses. More To Explore. Parabolic Mirror In Telescope Mirrors amp Prisms. Tell us what you think …

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How mirror is made   material  manufacture  making

How mirror is made material manufacture making

Mirrors on the edge of a grinding plate or evaporator chamber may not have the same surface or coating as those in the center of the apparatus. If there is a wide range of metal thicknesses or surface flatnesses in a single batch of mirrors, the process must be adjusted to improve uniformity.

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Telescope Mirrors for sale   In Stock   eBay

Telescope Mirrors for sale In Stock eBay

First Surface Mirror 4x4quot Square aluminized 18quot Thick for Laser printers Sensor. 10.44. 1 sold. 1.25 inches 90 degree Telescope 31.7mm 24.5mm Zenith Diagonal Reflect Mirror. 25.00. 1 sold. Sponsored Listings. New D150F750 Primary mirror secondary mirror Mirror Set for Telescope US Stock.

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How to Identify Drug Paraphernalia   Get Smart About Drugs

How to Identify Drug Paraphernalia Get Smart About Drugs

Jan 24, 2020018332A critical part of understanding teen drug use is awareness about drug paraphernalia—the items kids use to hide or consume drugs. You may find these items in your child’s bedroom, car or backpack. Plastic baggies or small paper bags Cigarette packages Electroniccigarettes also called Ecigarettes Small glass vials Pill bottles Candy or gum wrappers Baseball capski cap Belt

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How to Make Your Own Telescope Mirror   Instructables

How to Make Your Own Telescope Mirror Instructables

How to Make Your Own Telescope Mirror Fig 1 This is a large piece of glass a woman off Craigslist gave me. It was 40quotx40quot and 0.75quot thick. Its what I decided to use to make the mirror. Cutting it into smaller sections can be difficult but scoring it with a glass cutter and tapping the…

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  WOS   Wenk Observatory Solutions

WOS Wenk Observatory Solutions

Mirror Grinding. Telescope mirrors can be manufactured solely by hand in outstanding quality In what follows here, the process of making a 14quot mirror shall be described shortly. Note Making a grinding and polishing machine will reduce the invested time and costs per mirror visibly in future.

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mirror grinding kit grind and polish telescope mirror at

mirror grinding kit grind and polish telescope mirror at

All our Mirror Kits contain a Pilkington Float Glass mirror blank and Grinding Tool. These arefinished with fine ground edges. 180 grade first stage ginding powder. 400 grade ginding powder. 303 grade smoothing powder. Top quality Cerium Oxide Polishing powder.

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How I make Telescope Mirror Blanks

How I make Telescope Mirror Blanks

Here is a stack of my homemade 8 and 10 inch mirror blanks. The second from the bottom is the one above. I can use the thinner blank below it as the grinding tool. UPDATE I have started rough grinding one of my homemade 10in glass blanks. Here is an action shot of me, pushin glass. I am aiming for an f5 mirror.

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Mirror grinding machine construction log   James Crombie

Mirror grinding machine construction log James Crombie

Mirror grinding machine construction log ... Mirror seems to be almost finished, maybe an 18quot of pits showing up with the laser pointer. My buddy Garth Arsenault brought up his tester and gave me a quick course in its use. Aug 25, 2003 I was a little dismayed at the first results of the foucault test. ...

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Figuring the Perfect Mirror

Figuring the Perfect Mirror

The mirror is now on the bottom, dont forget to rotate the mirror. Since the original version of this program we have learned a bit more about polishing lap on top. It seems that lap on top polishing with short strokes actually shortens the mirror radius. Grinding tool on top lengthens mirror radius.

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Mirror o Matic mirror making machine   ATM pages of

Mirror o Matic mirror making machine ATM pages of

MirrorOMatic grinding machine. When I decided in 2009 after a tenyear 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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Thin Piece Of Stone Crusher Quality

Thin Piece Of Stone Crusher Quality

Long And Thin Grinding Machine. Large thin mirror making mel bartels and bbastrodesigns large thin mirror dobsonian can be made for a very there is a reason why long lines form behind these scopes at star a grinding machine relieves the labor, but is not necessaryead more. ... Used Mplete Stone Crusher Machine Prices In Chin. Stone crusher ...

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Light Weight Telescope Mirror Blanks and Lens Blanks

Light Weight Telescope Mirror Blanks and Lens Blanks

Reducing the weight of these large mirrors sometimes down to one eighth the weight of an equal sized solid mirror allows changes to the superstructure for groundbased telescopes, helping to reduce costs and extending functionality. Corning continues to develop and expand the use of this telescope mirror …

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How to Build an 80 Foot Wide Telescope Mirror to See …

How to Build an 80 Foot Wide Telescope Mirror to See …

Jan 15, 2016018332After a pause for work on two other mirrors, the lab is in the process of grinding Segments 2 and 3. Segment 4 has just finished cooling to room temperature after spincasting in September 2015.

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How to Identify Drug Paraphernalia   Get Smart About Drugs

How to Identify Drug Paraphernalia Get Smart About Drugs

Jan 24, 2020018332A critical part of understanding teen drug use is awareness about drug paraphernalia—the items kids use to hide or consume drugs. You may find these items in your child’s bedroom, car or backpack. Plastic baggies or small paper bags Cigarette packages Electroniccigarettes also called Ecigarettes Small glass vials Pill bottles Candy or gum wrappers Baseball capski cap Belt

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Amazon com  MIRRORCC Frameless Wall Mirror Full Length

Amazon com MIRRORCC Frameless Wall Mirror Full Length

This MIRRORCC Round Corner Frameless Bevel Grinding Edge Wall Mirror aims to offer mirrors in a simpler and more textured way. Threedimensional bevel grinding edge, European modern style, elegant and warm Finely edging, beautiful lines, smooth and transparent, beautiful, noble, elegant and graceful, sleek modern styling.

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Chromium Industries  Inc  v  Mirror Polishing  amp  Plating Co

Chromium Industries Inc v Mirror Polishing amp Plating Co

Mar 15, 1978018332Thomas Nalband is VicePresident of Mirror and Roll Grinding, and is the President of Plasma. In his deposition, he stated that he participated in management decisions at all three corporations. Eugene Nalband, Thomas Nalbands brother, is the President 549 of Mirror and the Treasurer of Roll Grinding and Plasma. The Nalband brothers own stock ...

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Buy mirror blanks for telescope making

Buy mirror blanks for telescope making

12 Inch Mirror Blanks, 34quot Thick 69 SampH 16 Shipping prices are to the USA not shipping outside the US, sorry Combined shipping is possible Write For a complete mirror making KIT, with all abrasives, polishing compounds, pitch, and grinding tool included, please see our Buy Telescope Mirror …

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Carborundum329 Carborundum Valve Grinding Compound …

Carborundum329 Carborundum Valve Grinding Compound …

Carborundum329 Carborundum Valve Grinding Compound In China. Msds for carborundum grinding paste carborundum valve grinding paste coarse chemico lapping paste is a water based lapping compound for use where grease is famous double ended tin combines coarse fine valve grinding paste in one chat online

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tut44 Making A Mirror Grinding Tool   Asterism org

tut44 Making A Mirror Grinding Tool Asterism org

Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, “I can make my own telescope.” Most amateur astronomers believe, “I can buy a better telescope than I can build.” Neither is actually correct. For many decades now, amateur …

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Mirror Grinding   Take A Class Or DIY    ATM  Optics and

Mirror Grinding Take A Class Or DIY ATM Optics and

May 11, 2017018332Page 1 of 3 Mirror Grinding Take A Class Or DIY posted in ATM, Optics and DIY Forum Ive been interested in grindingpolishing my own Newt mirror for a long time but dont know how to get started. As a beginner, would you recommend attending a workshop or class or is it possible to make a good mirror using other learning resources such as books and online videos

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Mirror grinding   scope making

Mirror grinding scope making

A good starter size is the 150 mm 6quot mirror. A 200mm 8quot will also work. Most ATM books and websites recommend a Pyrex174 mirror blank, but in my opinion, annealed plate glass is better for this first, quotlearn and practicequot mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical visible at ...

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Mirror Grinding Machine

Mirror Grinding Machine

My Mirror Grinding Machine. For a long time Ive wanted to build a machine for grinding telescope mirrors. Dennis Rechs MoM designs finally inspired me to just get up and do it. Over the years, Id been collecting motors, gear boxes, pulleys, etc. Most of them came from industrial junk yards.

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