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Would an amateur telescope maker be able to grind a mirror

Answer (1 of 5): The record for largest telescope made the same way amateurs use today goes to Ireland's Lord Rosse, who in 1845 built a 72-inch-telescope. Mirror grinding How the Enormous Mirrors on the World's Largest Telescope Are Made Liquid mirror telescope - Wikipedia This guy a truck d...

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Mirror-o-Matic mirror making machine

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.

tut44 Making A Mirror Grinding Tool

want to learn more about Newtonian telescopes the internet is replete with information about all types of telescopes. Typically, the primary mirror is made of glass. Pyrex is commonly used for the primary mirror because of its thermal stability, but for small mirrors, plate glass will work fine too. Telescope mirrors are relatively thick.

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Machine grinding a 25" telescope mirror.

Nov 16, 2012· Grinding 500 grit on a 25" f/3.0 meniscus mirror. Tool is a 19" glass tiled stone tool with about a 3" overhang and about 37 pounds of weight.

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Obsession Telescopes / Optics

A telescope mirror is designed to form a diffraction limited image of a point source. Ideally, a certain percentage of the light in the image will fall within the diffraction disk diameter. The Strehl ratio compares the mirror's actual performance in terms of its ability to .

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Robotic mirror grinding?

May 31, 2021· Loc: Oregon, South Western Coast. Posted 22 June 2021 - 02:01 PM. Robot or CNC machining of glass has been around since late 1960's, they were simple machines using punched tape. produced by a computer. It was used on free form optics. There was what is called profile grinding / .

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Strasbaugh polishing and grinding machine

Strasbaugh polishing and grinding machine. You wont find very many of these around. Strasbaugh is the premier manufacture of machines used by the professionals. This machine is solid no plastic or wood. You can adjust the spindle and eccentric speed with a turn of a knob while running. It makes mirror grinding a pure joy.

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 .

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How I built an edge grinder for telescope mirror blanks.

I borrowed a few ideas from the Mirror-O-Matic mirror grinding machine, particularly how to mount the turntable on top of the pulley. Anyone building machinery for cold-working glass should have a look at the MOM web site and plans. I drew concentric circles on the top of the tabletop in the sizes of common telescope mirror blank diameters

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200-inch telescope mirror, on grinding machine — Calisphere

200 inch telescope mirror on grinding machine at the Caltech optical shop, Pasadena, Calif.Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.

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Lens & Mirror Making Best lenses and mirrors are both made

• Best lenses and mirrors are both made by grinding the surface • Start with a mirror or lens blank • For mirrors only surface needs to be good • Typical mirror want pyrex (eg BK7) • Then need a tool blank – poorer glass & softer glass • Place mirror on top tool • Now add grinding compound (grit) between tool & mirror

Grinding Machine for Large Telescope Mirrors

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. The machine can also work smaller mirrors .

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Telescope Mirror Blanks / TelescopeMirrorBlanks.Com

Please see the Buy Telescope Mirror Blanks page for low prices on plate glass mirror blanks. If you'd like to buy a complete mirror grinding KIT, with all abrasives and grinding tool included, please see the Buy Telescope Mirror Kits. website for the lowest prices on plate glass telescope mirror grinding kits.

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Mirror grinding

A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank, but in my opinion, annealed plate glass is better for this first, "learn and practice" 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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Simulator (not only) polishing parabolic mirrors (POLSIM

Mar 12, 2018· By Giulio TiberinI March 12, 2018 Roughing and grinding machines mirrors, mirror making, tools Small tutorial on using "minimum" software POLSIM for the machining of a parabolic mirror for telescope, "Assisted" by the use of a simple rotating plate, even in the digging operation of the "arrow" of the initial spherical concavity.

Mirror Grinding Machine

Sep 26, 2006· Mirror Grinding Machine. The true test of the amateur astronomer is building their own telescope. Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank

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Stellafane Early History

Whimsical Mirror Grinding Machine Cartoon Porter always seemed to be sketching something, and in this 1936 illustration he created a Rube Goldberg style mirror grinding machine, with a napping amateur providing biometric timing control via heartbeat and breathing. 1899, was the book Porter used to teach himself telescope mirror making in

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How telescope is made

A telescope mirror can be made from glass that is somewhat less pure than that used to make a lens, since light does not pass through it. Often a strong, temperature-resistant glass such as Pyrex is used. 9 The polishing machine is similar to the grinding machine, but the tool is made from pitch—a thick, soft, resinous substance derived

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Types of mirror grinding machines

Nov 16, 2018· Types of mirror grinding machines - posted in ATM, Optics and DIY Forum: Hi to all, I am planning to make a mirror grinding and polishing machine but i have limited knowledge about these machines. Because of this i have some questions to someone who has some experience with those machines; - Some machines have fixed supportes and some of them have a prestaltic moving arm, .

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Telescope Mirror Making: Part 3, Rough Grinding

After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with 60/90 grit. The wets are lasting about 90 second...

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Making a homemade mirror grinding machine

Mar 06, 2006· Making a homemade mirror grinding machine - posted in ATM, Optics and DIY Forum: I want to make a motorized mirror grinder, any good info on this, i have a couple geared motors, low speed high torque. One more questionwill 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you, John

telescope mirror grinding / polishing machine with

Feb 15, 2016· The machine is shown grinding a 300 mm mirror.How to build a tachometer:

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Buy mirror blanks for telescope making

10 Inch Mirror Blanks, 3/4" Thick: $55 + S&H (16);Shipping prices are to the USA - not shipping outside the US, sorryCombined 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 Kits website for great prices on plate glass

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Making a homemade mirror grinding machine

Mar 06, 2006· Making a homemade mirror grinding machine - posted in ATM, Optics and DIY Forum: I want to make a motorized mirror grinder, any good info on this, i have a couple geared motors, low speed high torque. One more questionwill 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you, John

Grinding Machine for Large Telescope Mirrors

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. The machine can also work smaller mirrors .

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telescope grinding machine

Nov 06, 2020· telescope mirror grinding machines - MC World. 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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Document sans nom

Document sans nom. A history of polishing machines. As often in sciences and technology, Leonardo da Vinci was a pioneer, creating machines for the production of optical devices. Indeed, between 1513 and 1517, he imagined machines to grind and polish telescope mirrors, which, at the time, were made of .

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Grinding Machine for Large Telescope Mirrors in 2021

Mar 8, 2021 - Grinding machine for mirrors up to 42 inches [1.1m] in diameter. Can be configured for spin or stroke work.

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Strasbaugh polishing and grinding machine

Strasbaugh polishing and grinding machine. You wont find very many of these around. Strasbaugh is the premier manufacture of machines used by the professionals. This machine is solid no plastic or wood. You can adjust the spindle and eccentric speed with a turn of a knob while running. It makes mirror grinding a pure joy.

Get Price

grinding plant mirror

Mirror Grinding Machine. 2015-8-14 2015-8-14 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,

Grinding Machine for Large Telescope Mirrors

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. The machine can also work smaller mirrors .

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Slotted Block for the Mirror-o-Matic telescope mirror

This is a slotted block for the Mirror-o-Matic telescope mirror grinding and polishing machine.by Dennis Rech. You can look at for the information, plans and operations manual. All size parameters can be adjusted, as well as the diameter of the target mirror. The optional slots for washing out the grid from inside the block slit are also provided.

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Large Thin Mirror Making

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.

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Mirror Grinding Machine

Sep 26, 2006· Mirror Grinding Machine. The true test of the amateur astronomer is building their own telescope. Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank

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Telescope Mirror Making: Part 3, Rough Grinding

Gordon Waite sets up his fixed-post mirror grinding machine to begin rough grinding on an 11 f/4.3 telescope mirror. He uses a grinding tool made from dental plaster and steel pieces to speed up grinding. Gordon shows the setup for spin grinding at high speeds and with added weights to get the job done as fast as possible.

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Grinding Machine for Large Telescope Mirrors

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. The machine can also work smaller mirrors if the drip pan is moved to the fast shaft on

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Explore how telescope mirrors are made

Jul 27, 2021· Making a telescope mirror. To start, a new mirror blank is "sanded" down to create a precise parabolic curve in a process called grinding. To do that, the blank is .

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Making mirrors for giant telescopes

The Starfire project provided much of the funding for a new polishing lab built in 1990 and equipped with an 8 m grinding and polishing machine and a 24 m test tower, which were first used to figure the 3.5 m mirrors. (replacing the six 72 inch telescopes of the original Multiple Mirror Telescope) and the first of two Magellan telescopes at

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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 that I made myself.

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Grind and Polish a Dobsonian/Newtonian Telescope Mirror

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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Rough Grinding a 20" Quartz Telescope Mirror on the Fixed

Mar 07, 2010· This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, you'll see how abrasi...

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Astronomy Options

Currently manufacturing a 16″ diameter 1″ thick plate glass f3.88 Newtonian telescope mirror. Doing this with my new fixed post grinding machine built this summer. Work is progressing well, and very efficient. Started project in August 2013 and at this point I am ready to move on from 25 micron White Aluminum Oxide to 9 micon White Aluminum

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Электроника: [View 34+] Telescope Lens Grinding Machine

Get Images Library Photos and Pictures. telescope mirror grinding / polishing machine with tachometer - YouTube Mirror grinding Petzval Lens New Assignment for Telescope: Better Measurements of Dark Energy Oct. 3, 1947: Birth of Palomar's 'Giant Eye' | WIRED Document sans nom Astro-Tel - Mirror grinding machine . OptoTech NC-Controlled Grinding, Lapping and Polishing Machine .

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