telescope grinding machines

B & B Machine & Grinding Service in Denver, CO - YP

It provides grinding and welding services. It features a full line of manufacturing and assembly equipment. The firm specializes in the machining with horizon boring mills. B&B Machine and Grinding Service is certified ISO9001 and ASA9003 and registered with the Department of State (ITAR), Extra Phones. Phone: (303) 744-2802. Fax: (303) 744-2802.

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Telescope Mirror Grinding Machine - Crusher Mills

Telescope Grinding - Free Video Games Very old mirror/lens grinding machine. This machine can grind and polish using different stroke patterns, i.e. w-stroke, short strokes, long strokes, etc. C. How I make Telescope Mirror Blanks - Michael Davis Publishing . This is a full-thickness, 8 inch diameter telescope mirror blank that I made myself. .

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TELESCOPE MIRROR BLANKS - Advanced Glass

AGI can diamond machine ID holes into your mirror blank; ... Quantity discounts are available. Contact us today about our telescope mirror blanks needs! REQUEST A QUOTE GET STARTED. GLASS WHY AGI ABOUT US CONTACT TERMS & CONDITIONS MOBILE. Phone: (585) 458-8040 Fax: (585) 458-8087. PO Box 60467 1335 Emerson Street Rochester, NY 14606.

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Grinding a Telescope Reflector With Tool-grinding Device

gear are all we need to construct this grinding machine. The wooden platform on the turntable is faced true, to permit a wfell-centered reflecting surface to be obtained. The main task of producing a perfect spherical concave surface should be solved by the use of; a grinding tool swinging over the mirror blank like a pendulum. As this would ...

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Telescope Mirror Kits - Firsthand Discovery

Want to build your own telescope? Start with one of our telescope mirror kits. Each kit comes with a telescope mirror blank and all the abrasives (silicon carbide grits and white aluminum oxide powders), cerium oxide polish and pitch to grind and polish it to your specifications. Please note that our kits do not include a grinding tool or pitch ...

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Grinding Machine for Large Telescope Mirrors - BBAstroDesigns

Can be configured for spin or stroke work. Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches [1.1m] in diameter. By slipping on and off a couple of belts, the machine can quickly be reconfigured for spinning work or for stroking work.

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Telescope Mirror Blanks / TelescopeMirrorBlanks.Com - Grind Your Own ...

There are several advantages to using thin plate glass mirror blanks for grinding your telescope mirror: * Thin mirror blanks are less expensive, allowing more people to afford the hobby of grinding their own telescope mirror. * Choosing a thin mirror blank gets you more aperture for your dollar. * Telescope mirrors made from thin mirror blanks ...

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Amateur Telescope Making - Amateur Astronomers Association - AAA

Willmann-Bell also publishes other books that are useful. They also sell some high quality grinding and polishing agents. Another excellent publisher is Sky Publishing Corp., 49 Bay State Road, Cambridge, MA 02138-1200, telephone (617) 864-7360. Their magazine, Sky and Telescope, also has a column written by amateur telescope makers.

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Working on NASA's Precision Telescope - NuSTAR | ABTech

NASA Chooses ABTech for Precision Telescope Optics Machines, NASA scientists challenged ABTech to develop a multifunctional machine that would act as a grinding lathe, an indexing tool for raster grinding, and an assembly station—all in one. The machine would safely and quickly produce optics for their long-delayed NuSTAR X-ray telescope.

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how to make a telescope mirror grinding machine

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 125 inch diameter, 15 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself... Know More Diy Telescope Mirror Grinding Machine

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Newtonian Telescopes

Manufacturers usually devised their own machines to do the work of grinding and polishing. Except where the utmost perfection was imperative, figuring seems to have consisted for the most part of a final brief variation of the stroke, in an unguided attempt to concentrate the polishing at the center.

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Links: Amateur Telescope Making - AOAS.ORG

Little Dipper Telescope (1,356) Interesting article on building an open-tube Dobsonian based on the designs of Albert Highe; Mirror-O-Matic (976) Want to grind your own mirrors? Don't want to wear your arms out? try building one of these mirror grinding machines. Plans and instructions for the ATM. Nils Olaf Carlin - Hacksaw Spider (1,133)

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How telescope is made - material, manufacture, making, history, used ...

A telescope is a device used to form images of distant objects. The most familiar kind of telescope is an optical telescope, which uses a series of lenses or a curved mirror to focus visible light. ... 9 The polishing machine is similar to the grinding machine, but the tool is made from pitch—a thick, soft, resinous substance derived from ...

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Lens Grinding Machine | Astromart

Commercial lens grinding and polishing machine. Produces a back and forth "W" stroke as the tool rotates. Upper disk can be made to rotate also. Independent variable speed controls allow you to vary the speed of rotation of the tool seperately from the lower disk. Has a pumping system for the polishing compound that continuously flushes the ...

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Leviathan of Parsonstown - Wikipedia

Design and construction. Parsons improved the techniques of casting, grinding and polishing large telescope mirrors from speculum metal, and constructed steam-powered grinding machines for parabolic mirrors.His 3 foot (91 cm) mirror of 1839 was cast in smaller pieces and then fitted together before grinding and polishing; its 1840 successor was cast in a single piece.

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Used Riveting Machines for sale in New York, USA | Machinio

Used riveting machines for sale in New York, USA. Norlok and Chicago. Find used riveting machines and riveters on Machinio.

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Which Style Grinding Machine For Telescope Mirror? (Best solution)

Dec 13, 2021Roughness in stroke numbers, tool rotation, and disc rotation are all important factors in good mirror grinding. Making a tile tool out of tiles that have been broken with a hammer can help to increase the unpredictability of the game:) Always work with water on your hands! Prior to beginning to grind, sprinkle some water on the grit.

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Lens Grinding Machine At Unmatched Promotions - Alibaba

Alibaba introduces professional and advanced lens grinding machine for all types of testing, measuring purposes. These lens grilling machine are certified and high precision. ... telescope optics, autocollimator, digital refractometer, ocean optics spectrometer, optical profilometer, optical spectrometer, optical emission spectroscopy ...

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Clark Telescope - Keystone College

The Clarks were master craftsmen in grinding and polishing lenses for refracting telescopes and made many of the finest lenses ever ground in the United States. The equatorial mount and tube was the first telescope mount made by Warner and Swasey, a machine-tool company from Cleveland, Ohio.

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Advanced Telescope Making Techniques Vol. 2 Mechanical

Volume 2 concerns the building and testing of devices which are commonly used in optical production including spherometers, grinding and polishing machines, and drilling machines. Many of the machines or devices described can be made by an amateur telescope maker of intermediate or better experience. Chapter 5 details an inexpensive grinding ...

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Stellafane ATM Main Page

Amateur Telescope Making Main Page. Russell Porter. Grinding a Mirror. "For 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 ...

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Surya - The Telescope Maker - Aperture Telescopes

Hogging started off on the grinding machine using a diamond wheel. In this photograph the grinding is seen as rough circular lines. The grinding has progressed to about 150 mm diameter, while the full diameter of the blank is 200 mm. To measure the sagitta, you need to lay a straight edge passing over the centre of the glass blank.

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Document sans nom - Astrosurf

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 non-linear wearing off effect, which is hard to control to obtain a regular shape, free of zonal defects. ... Machines are not ...

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Article Index - The ATM's Workshop

Feature Article Topical Index. The articles indexed on this page are feature length, detailed articles covering some of the many aspects of amateur telescope making. They offer full descriptions of techniques the author has used and often include step-by-step instructions for projects readers may freely copy, use, modify, or leverage for their ...

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Used Telescope Boom Lift for sale. Rayco equipment & more - Machinio

track gauge 3.30m, 224 hp, 480/70 38 tires, Trace manually telescope 30 Cm, 40 kmt Self-leveling boom, Individual lift, Multidose injection system with 6 pumps, Fmx display with RTK upgrade. $63,781 Viborg, Denmark

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Mirror Grinding Machines - an Astronomy Net ATM Forum Message

Howdy, I am going to be joining the ranks of retired people on 12/31,and I am thinking about grinding another mirror. My first mirror is an 8"/f5 that was done by hand. Since then I had to have surgery on my right shoulder,so I am wanting to build a grinding machine.

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L.B. Bohle | Telescope Lifter PTH | Pharmaceutical Industry

We offer our telescope lifters in different sizes. The following list provides an initial overview. PTH 300 PTH 400 PTH 600 PTH 800 PTH 1000 PTH 1500 The following list provides an initial overview. We look forward to your request for detailed information. Your contact for the Telescope Lifter Matthias Dietz Area Sales Manager [email protected]

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Why are telescope mirrors made of glass? - Quora

Answer (1 of 7): Glass is an inexpensive material that is easily ground, polished and coated, and has a low coefficient of thermal expansion. It can have material removed for light weighting. Glass light-weighted by removing material in hexagonal array. Some lightweight telescope mirrors have b...

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Mike's Telescope Workshop

Cutting telescope mirror blanks out of a thick glass tabletop ... 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 that I made myself. The blank only weighs 10 lbs, 4 oz.

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Building a Refracting telescope, anyone done it? - Practical Machinist

Bought the "Advanced Telescope Making Techniques "by Allan Mackintosh. First I made a mirror grinding machine.Bought some 8" blanks and set out grinding.The machine would run unattended so that part was ok.Made the Newtonian mount.Sent the ground blank off for coating.Finally had it all finished.We looked at

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The Giant Magellan Telescope Will Revolutionize Astronomy With a 119 ...

The Mirror Lab houses a giant rotating furnace to cast the slabs of glass, equally enormous grinding and polishing machines, and a measuring tower to scan the mirrors with lasers. The whole ...

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Making a homemade mirror grinding machine - Cloudy Nights

The key to understanding this is assessing the amount of current in any determined time period (equated with 'heat') has to have time intervals to allow dissipation. If not the motor gets hot. This is where frequency control motors (single- or three- phase) lose out, for generally the current is still high.

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Grinding/Polishing Machine | Pierre Lemay

Search for: Login. Log in; Entries RSS; Comments RSS; WordPress; Proudly powered by WordPress

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(PDF) SiC ultralight mirror for large space telescope ... - ResearchGate

We are developing an SiC mirror by means of the ELID (ELectrolytic In-process Dressing) grinding method, a grinding machine with rotary table of 800 mm in diameter and precision of 10 nm in ...

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How I built an edge grinder for telescope mirror blanks.

The edge grinder is done! Here I am doing a dry run to make sure everything works. A 13.5 diameter wood disk has been installed on the grinder. In actual operation a 14 or 14.5 blank would be attached to this disk. The blank would overhang the edge of the wood disk. The grinder would grind the glass, but not touch the wood.

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Machine Tool Room - CNC Turning Machines Manufacturer from Delhi

* Machine can accommodate heavy duty & extra large grinding wheel with width up to 160 mm. * These machines are designed to suit heavy grinding load applications and offer a cost effective solution for external grinding. FEATURES : * Grinding wheel width upto 160 mm permits Multi-diameter grinding at a time leading to higher productivity

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Mount Wilson Observatory | Building the 60-inch Telescope

By September, 1907, the world's largest telescope mirror was ready for its mount, but other equally large problems would cause further delays. (To watch a short video of Ritchey's grinding machine, now at the Smithsonian, go here. ) The majority of the massive mounting and the steel for the dome was built by the Union Iron Works in San Francisco.

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Grind and Polish a Dobsonian/Newtonian Telescope Mirror ... - Instructables

Just grinding the telescope mirror probably took 80-100 hours for me, but I was learning a lot and taking my time. ... You are right, with larger mirrors (above 8") it is handy to have a machine do all of the hogging out work - they are relatively simple to build if you have access to a small motor. It's a lot of glass to remove on a larger ...

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OcularBiker: Telescope Making - Blogger

Manual grinding, putting pressure on the leading edge on the center area of the mirror, the grinding action is more effective. The tool stay on your side and the inside edge is all the time on the mirror's center area. When the concave shape is starting to form I normally let the machine to do the hard work for me.

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Used Telescope Loader for sale. Rayco equipment & more | Machinio

Manufacturer: Rayco Model: 1800AWL Hours: 1 RAYCO 1800AWL 4-WHEEL ARTICULATING WHEEL LOADER, D1105, 25-HP, liquid cooled,Single joystick for Lift, Roll, Telescope boom functions,Adjustable suspension seat, Working lift capacity 1800 lbs.Fits EASILTY...

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