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Telescope Grinding Machine

Jan van Gastel: Making a mirror-o-matic mirror making machine

I did a google search and arrived soon on Dennis Rech's 'Mirror-O-Matic' pages. Just what I was looking for! Once I had seen a grinding machine, working at 380 Volts and weighting about 300 kilo's, but this one looked quite different: lightweight, very compact and working on normal volts.

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CNC for optics - practicalmachinist

Jun 04, 2019 · A LOH sphereomatic CNC lens grinding machine, perfect condition picked up at auction for € 750 ???? . I've seen some ingenious setups/modifications using bridgeport type mills for grinding large telescope mirrors, with containment tanks for abrasive slurry and such. cameraman liked this post Page 1 of 2 1 2 Last.

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Telescope Grinding - YouTube

Jun 06, 2009 · 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. Currently this machine can only operate a .

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TELESCOPE MAKING - deep-sky

The Ritchey-Chretien (RC)Cassegrain design of telescope is the one invariably chosen for most of the World's professional telescopes - including the Hubble Space Telescope. On axis it is perfect as the ray trace shows. Off axis it is corrected for coma - the bain of amateur reflecting telescopes but it does suffer from some astigmatism.

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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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GordonWaite - YouTube

Using the Fixed-Post Grinding Machine for Rough Grinding an 11-inch Telescope Mirror - Duration: 5 minutes, 53 seconds.

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Mount Wilson Observatory | Building the 60-inch Telescope

Building the 60-inch Telescope. by Mike Simmons. . (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. The .

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jeffbaldwin

Here's Jeff fixed-post grinding on a 24" using Greg's machine.. So, there are a few machine styles out there. In our shop we use fixed-post grinding and polishing, then parabolizing with an Elgin style system. Fixed-post machine grinding is where the mirror is on a turntable rotating around 20 PRM [speeds vary], and a 75% tool is on top.

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Mount Wilson Observatory | Building the 60-inch Telescope

Building the 60-inch Telescope. by Mike Simmons. . (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. The .

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Joy of Mirror Making: Introduction - bbastrodesigns

Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors from glass. Making a telescope mirror is one of the most satisfying and sublime joys you will experience. It's also arguably the most accurate surface made by man or machine. If the mirror is expanded to the size of a football .

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how to make a telescope mirror grinding machine – Grinding .

Mirror Grinding Machine. telescope mirror grinding machine based on Dennis Rech's M-o-M 20. My Mirror Grinding Machine.For a long time I've wanted to build a machine for grinding telescope . » More detailed So you really want to build a Telescope Mirror.. So you really want to build a Telescope Mirror.Bob May. . Grinding/polishing machines work by rotating the bottom piece (mirror or .

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jeffbaldwin

Here's Jeff fixed-post grinding on a 24" using Greg's machine.. So, there are a few machine styles out there. In our shop we use fixed-post grinding and polishing, then parabolizing with an Elgin style system. Fixed-post machine grinding is where the mirror is on a turntable rotating around 20 PRM [speeds vary], and a 75% tool is on top.

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Mirror Grinding Machine - Cloudy Nights

Sep 29, 2010 · Mirror Grinding Machine - posted in ATM, Optics and DIY Forum: I have some interest in building a grinding machine for possible up to an 18 mirror, but something that will also do a 6 or 8 mirror. I have plans for the Mir O Matic but would like to do something a bit more modern. I have some ideas about using a AC drive and a large aluminum disk for the turntable and have made a parts list .

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How I built an edge grinder for telescope mirror blanks.

How I built an edge grinder for telescope mirror blanks. It was very quick and easy. . I eventually decided I needed to build a dedicated edge grinding machine. This is how I did it. . I drew concentric circles on the top of the tabletop in the sizes of common telescope mirror blank diameters.

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Newport Glass Works, LTD. Grinding, Polishing and Figuring .

Thin Telescope Mirrors . Abridged from an article appearing in Telescope Making #12 Provided: Courtesy of Astronomy Magazine . There are several ways to support the grinding and polishing machine turntable, but first make sure the turntable itself is rigid. It must not bend. If your machine lacks a sturdy turntable, one way to .

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Mirror grinding - scopemaking

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.

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Joy of Mirror Making: Introduction - bbastrodesigns

Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors from glass. Making a telescope mirror is one of the most satisfying and sublime joys you will experience. It's also arguably the most accurate surface made by man or machine. If the mirror is expanded to the size of a football .

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Mirror Grinding Machine | Hackaday

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

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Amateur telescope making - Wikipedia

Amateur telescope making is the activity of building telescopes as a hobby, as opposed to being a paid professional.Amateur telescope makers (sometimes called ATMs) build their instruments for personal enjoyment of a technical challenge, as a way to obtain an inexpensive or personally customized telescope, or as a research tool in the field of astronomy.

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17 Best Telescope Making images in 2016 | Diy telescope .

Dec 25, 2016- Explore starman1kmo's board "Telescope Making" on Pinterest. See more ideas about Diy telescope, Sundial and Binoculars.

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Fixed post mirror grinder advice - DIY Astronomer .

Nov 01, 2011 · This is the method that I use; one of my machines is shown in the first attachment. An alternative, which seems very popular with home machine builders, involves rotating the mirror at a relatively high speed whilst the tool has minimal movement or is fixed (as in the case of Gordon W's machine).

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diy - Is it possible for a hobbyist to create a lens .

Is it possible for a hobbyist to create a lens element? Ask Question Asked . need materials with adequate purity, light transmission, and hardness, not to mention a fair bit of precision in your grinding mechanism to ensure you refract light enough to focus it where you want it focused, and do so evenly across the surface of the lens .

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Telescope Making Links - Designs and Techniques | STAR .

Astronomy, telescope making,mirror grinding and testing Large Thin Mirror Making by Mel Bartels Grinding Machines Mirror-o-matic Tom Waineo's Desktop Grinding/Polishing Machine Ken Lilja's Grinding Machine Grinding Machine Figuring Figuring a Paraboidal mirror by thermal predistortion Optical Testing The Basics of Telescope Testing Test Stand

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Making the 20 inch Conical Mirror | Pierre Lemay

Making the 20 inch Conical Mirror. The 20″ telescope project began after I located a suitable slab of glass. In 1990 I saw a classified ad in Sky and Telescope by Dick Nelson, owner of the Optical Crafstman telescope making company. . To do these operations I built a grinding machine which would be used throughout the project. My grinding .

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Stellafane ATM Main Page

Amateur Telescope Making Main Page. Russell Porter . Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s. Many amateur astronomers still choose to fabricate their own instruments, for the pride of accomplishment, the gaining of knowledge and the insurance of .

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Stellafane ATM: Materials & Tools

The Tools: Grinding & Polishing. You will need two tools: A hard tool for rough and fine grinding, and a soft tool, or pitch lap, for polishing and figuring. Traditionally, the pitch lap was made on top of the grinding tool. We recommend using plaster disks for tool .

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#1 Cheap Price Telescope Mirror Grinding Machine Plans .

Shop for cheap price Telescope Mirror Grinding Machine Plans .Compare Price and Options of Telescope Mirror Grinding Machine Plans from variety stores in usa. products sale. "Today, if you do not want to disappoint, Check price before the Price Up.Telescope Mirror Grinding Machine Plans You will not regret if check price."

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Telescope Mirror Kits - firsthanddiscovery

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.

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CNC Optical Grinding Machines | OptiPro

PZX 5-Axis Prism Grinding Machine. The PZX prism grinding machine is the latest solution for companies looking to enhance their prism manufacturing capabilities. Machine prisms up to 6″ thick with a maximum diameter of 10″ for the longest diagonal.

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Telescope Mirror Blanks for the Astronomical . - United Lens

Mirror Blanks For Telescopes . United Lens Company supports both the professional and amateur astronomical community. We've sold classic test plate and mirror blanks for nearly as long as ULC has been in business.

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The Perfect Machine: Building the Palomar Telescope Kindle .

The Perfect Machine: Building the Palomar Telescope Kindle Edition by . Eleven and a half years had elapsed since the grinding machine started to work on the disc. Shipping the mirror from Pasadena to the mountain was another epic journey, this time by highway. Finally, all the pieces were in place.

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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 Machines | Crusher Mills, Cone .

CNC telescope mirror grinder. – CNCzone-The Largest . It has a 12 inch diameter mirror. While the telescope looks expensive because of its size . few by hand, not to say I know anything about machine grinding.

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Mike's Telescope Workshop - mdpub

Since I've been casting my own telescope mirror blanks for several years now. I finally decided it was time to build a machine to help me grind the edges of the blanks true and round. This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project.

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Large Homemade Telescope Making Project

DIY Mirror Grinding and Telescope Making. Bill's Homemade Telescope Making Project This web page provides an overview of my large homemade telescope making project. I read several telescope and mirror making books and visited many amateur telescope making or "ATM" websites to learn how to build a 14.5 inch homemade telescope of this size. These .

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So you really want to build a Telescope Mirror. - Astronomy

So you really want to build a Telescope Mirror. . Grinding/polishing machines work by rotating the bottom piece (mirror or tool) and letting the top piece freely rotate about it's central axis as it desires to do. As you watch a machine work, the upper piece will rotate at .

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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 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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#1 Cheap Price Telescope Mirror Grinding Machine Plans .

Shop for cheap price Telescope Mirror Grinding Machine Plans .Compare Price and Options of Telescope Mirror Grinding Machine Plans from variety stores in usa. products sale. "Today, if you do not want to disappoint, Check price before the Price Up.Telescope Mirror Grinding Machine Plans You will not regret if check price."

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Lens & Mirror Making Best lenses and mirrors are both .

Lens & Mirror Making • 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 . Grinding Machines

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Mirror grinding - scopemaking

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.

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