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telpe mirror grinding machine for sale . GM stone crusher machine is designed to achieve maximum productivity and high reduction ratio. From large primary jaw crusher and impact crusher to cone crusher and VSI series for secondary or tertiary stone crushing, GM can supply the right crusher as well as complete crushing plant to meet your ...
100-inch telpe mirror on grinding machine at Mount Wilson Observatory's Pasadena laboratory.Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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 …
Currently manufacturing a 16″ diameter 1″ thick plate glass f3.88 Newtonian telpe 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 …
Mike's Telpe 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 telpe mirror blank that I made myself. The blank only weighs 10 lbs, 4 oz. I am very excited about this process.
Most amateur telpe makers (ATMs) build a Newtonian telpe, a design named for its inventor, Sir Isaac Newton. The heart of the Newtonian telpe is its primary mirror. Most Newtonian primary mirrors have either a spherical or a parabolic shaped concave face. Unlike most other mirrors in your home, the mirror coating of a
Grinding 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.
Up for sale is my telpe mirror grinding machine / pottery wheel. I used this machine to grind a telpe mirror and it worked great. No more walking around the barrel. Could be adapted with an overarm for a fully automated grinding machine. $125 shipped to CONUSA. Includes 3D printed mirror holder (mirror blank not included as seen in ...
Re: Building a fixed post mirror grinding machine. I I had a nice piece of 3/4" stainless dowel that was begging to be used. So I bought a cheap pillow block to provide the locator for the metal dowel, and then drilled the overarm to fit. These pillow blocks are $8 and come complete with a locking collar - …
Thin Telpe Mirrors . Abridged from an article appearing in Telpe Making #12 Provided: Courtesy of Astronomy Magazine Article's Author: Bob Kestner . Part I - Grinding . For many years, amateur astronomers and telpe makers thought it essential that glass for telpe primary mirrors be at least one-sixth as thick as its diameter.
Basically there are two types of grinding/polishing machine. The 'traditional' type which involves the mirror rotating at a relatively slow speed, a few rpm for a big mirror (16-20 inches) with the tool moving across the mirror, from side to side, at a …
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 …
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 …
My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telpe 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.
Telpe 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. Telpe Making. Telpe Mirror Grinding and Polishing Machine. After I had made the 41-cm telpe mirror by hand I had decided that I needed a ...
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 …
Re: Building a fixed post mirror grinding machine. Update summary: Lots of work to get to this point. Things I need to probably change or fix: My gearing of the DC motor. I will need a slow speed for polishing (5 rpm), and faster speeds for hogging out and fine grinding (15- 30 rpm), so likely need to think about adding a gear reduction.
Grinding Machine for Large Telpe 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. …
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 telpe making book 1 a bowl which rotated was fitted to the spindle i also built another machine of the same type.
George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telpe mirrors starting with a 24-inch and then a 60-inch mirror for a telpe initially intended for the Yerkes Observatory.
200 inch telpe 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.
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 telpe. It is also true that if an amateur starts out to build a telpe just for fun he will find, …
The first thing I built was an extension that sits in the middle of the turntable to raise the working surface above the height of the dam. It was made from an 18 inch diameter tabletop and some scrap lumber. I drew concentric circles on the top of the …
Making a Mirror takes Hundreds of Hours of Work. Not True! 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 …
Zambuto's process using a Mirror-O-Matic machine comes close to generating a properly parabolized mirror simply by following the steps outlined in his spreadsheet. Texereau states that his "group has parabolized a number of mirrors …
Mirror Grinding Machine. My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telpe 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.
Mirror Grinding Machine. telpe mirror grinding machine based on Dennis Rech's M-o-M 20. Read more. SkyBadger - Mirror Grinding Machine. I have a Mirror-o-maticmirror making machine that I swapped with MikeMS for a Newtonian telpe that was no use to me. ... The grinding machine had been built to the design of the mirror-o-matic design of ...
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