grinding machine telescope

Mirror grinding - Telescope making

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 …

Dick Parker's Telescope Mirror Workshop: Cassegrain ...

The Cassegrain telescope is probably the first type telescope that the ATM would like to make after mastering the basic Newtonian telescope. In this article I will show how it is possible for the ATM to make his own Cassegrain …

Astro-Tel - Mirror grinding machine

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 …

Mike's Telescope Workshop

Mike's Telescope Workshop. I have been involved in amateur telescope making (ATM) for over 30 years. In that time I have built many different telescopes and other instruments. This web page chronicles just a few of them. …

Amateur Telescope Making Main Page - Stellafane

Amateur Telescope Making Main Page. "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 …

Build your own telescope part 1: The mirror – Thomas ...

Rough grinding. This step is about making one side of the glass concave. It will give your mirror its overall focal ratio. If you make the centre deep, you will end up with a fast telescope (e.g. F/D = 4) well suited for deep sky observations. On the …

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 ...

Grinding,Polishing and Figuring - Part 2 - Polishing

Grinding, Polishing and Figuring Thin Telescope Mirrors . Part 2 - Polishing . Abridged from an article appearing in Telescope Making #13 Provided: Courtesy of Astronomy Magazine ... Normal machine polishing techniques are not as efficient as hand polishing in these sizes. But don't get me wrong about machine polishing: it is the only way to go.

Newport Glass Works, LTD. Grinding, Polishing and …

Grinding, Polishing and Figuring . Thin Telescope Mirrors . Abridged from an article appearing in Telescope Making #12 ... 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.

Large Thin Mirror Making - BBAstroDesigns

A grinding machine relieves the labor, but is not necessary. A 24" is the largest you can comfortably do solo. Larger mirrors require a helper. ... April 1996, Sky and Telescope magazine starting on page 75 carries an article by Toshimi …

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.

Telescope Making Links - Designs and Techniques | STAR ...

Grinding,Polishing and Figuring Large Thin Mirrors - Part 2 - Polishing Astronomy, telescope making,mirror grinding and testing Large Thin Mirror Making by Mel Bartels Grinding Machines Mirror-o-matic Tom Waineo's Desktop …

Mirror-o-matic.com

Information for ATMs Zip archive of Mirror-o-Matic Yahoo Groups (2000-2019) 307 Contact Dennis

Mirror Grinding Machine | Hackaday

Mirror Grinding Machine. The true test of the amateur astronomer is building their own telescope. Grinding and polishing your own mirrors is a long, …

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. They are already curve-generated. The tool is hanging over the mirror by 1/6 the diameter of the …

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, …

History of the Telescope - Important Developments in ...

History of telescope started in 1608 with the group of Dutch spectacle-makers who all created first working models of telescope at the same time. However, credit for the creation of first one was given to Hans Lippershey, German-born lens …

Telescope Mirror Grinding Machine | Crusher Mills, Cone ...

Telescope mirror grinding machine Mirror making and optical testing … The images below show the completed grinding machine in it's new garage in October 2001. GrindingPolishingMachine – LCAO. Telescope Making. Telescope Mirror Grinding and Polishing Machine. After I had made the 41-cm telescope mirror by hand I had decided that I needed a ...

Building the 100-inch Telescope - Mount Wilson Observatory

The world's largest grinding machine was built. The glass company had reported that bubbles in the glass might be a problem, but the astronomers insisted on seeing for themselves. But when the disk arrived at the observatory shops in …

Hans Lippershey - Inventor of Refracting Telescope

Hans Lippershey was born in 1570 in Wesel, Germany. At the age of 24 he settled in Middelburg (province Zeeland), Netherlands, where he was married. There he opened his shop, creating spectacles and crafting lenses of various sizes. It is not exactly known from where he got an idea for building his first telescope.

Strasbaugh polishing and grinding machine | Astromart

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 …

new grinding machine and 23,5" mirror project - ATM ...

Page 1 of 5 - new grinding machine and 23,5 mirror project - posted in ATM, Optics and DIY Forum: Hello folks!I have been an ATM since 1992 and would like to share you some videos and pics in order to pay tribute to all ATM …

Mirror Grinding Machine | Hackaday

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 ...

Galileo Galilei telescope | Max-Planck-Gesellschaft

Using various materials, such as German spectacle lenses, mirror glass and rock crystal, and with the help of various technical processes – he had already acquired his own grinding machine for lenses in late 1609 – Galilei designed an excellent telescope. In January 1610, he spotted the first three of what would later become four Jupiter moons.

Telescopes - tomkaye.com

These telescopes are completely computer controlled so I can sit in my living room and point them around the sky. Below is my 44" diameter telescope mirror on the grinding machine. It is 6 inches thick and weights about 900 lbs. This mirror is very deep in the middle as you can see on the right.

Stellafane ATM:Mirror Making Myths

A 6" or 8" mirror should take about 40 to 80 hours of effort. While this is a non-trivial amount of time, the mirror can be completed in a few months, and certainly within a year. Most people work one to three hours a day on their mirror about one or two times a week. Homemade Mirrors are of Inferior Optical Quality.

ATM, Optics and DIY Forum - Cloudy Nights - Page 2

ATM, Optics and DIY Forum. Amateur Telescope Making (ATM) and any do it yourself related activities. Ask questions, discuss and post pictures of telescope related projects, optics, telescopes, observing chairs, etc. Prev. Page 2 of 467.

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