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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 of them came from industrial junk yards.
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 ...
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.
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 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type.
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 over, that he has become seriously interested in the ...
Construction and Design. 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 feet (91 cm) mirror of 1839 was cast in smaller pieces, fitted together before grinding and polishing; its 1840 successor was cast in a single piece.
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. ... machine figuring a ...
Ritchey Telescope Mirror Grinding Machine. Ritchey Mirror Grinding Machine The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. It embodies the subdiameter tool design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by ...
Mar 10, 2006· The Amateur Telescope Maker's Page A Grinding Rig. WALKING around a barrel is undoubtedly a tedious procedure, but on the other hand it is the simplest method of grinding and polishing a telescope mirror.
Amazon's Choice for telescope mirrors Ullman Devices HTC-2 High-Tech Telescoping Inspection Mirror, 2-1/4" Diameter, 6-1/2" to 36-3/8" Length 4.6 out of 5 stars 192
31 rows· Rough Grinding The first milestone is putting a curve into the mirror face. The curve's .
Ritchey Telescope Mirror Grinding Machine. Ritchey Mirror Grinding Machine The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. It embodies the subdiameter tool design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by ...
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 opposite, a shallow mirror (e.g. F/D = 8) will be performing very well on planets and the moon.
DATSCOPE. New grinding machine The new grinding machine is being used to re-make the old TRO 30 inch mirror and the three 20 inch mirrors It will be capable of making a planned 1M telescope .
Mirror grinding machine ebay. save mirror grinding machine to get e-mail alerts and updates on your ebay feed. + items in search results telescope mirror grinding machine design info plans original 1951. a construction manual for converting the mirror -o-matic. the original mirror -o-matic had a turntable that doubled as a slurry drip pan.
Rough Grinding The first milestone is putting a curve into the mirror face. The curve's depth dictates the mirror's focal length. The curve should be spherical. Creating the curve can be done by several methods: The curve is ground into the mirror face using a grinding tool. The curve is pre-generated for you.
Telescope Mirror Grinding Machine For Sale. Mar 16, 2015· Page 1 of 5 - Making a Mirror grinding & Polishing machine - posted in ATM, Optics and DIY Forum: Hello, I am on the half of the way to make a mirror grinding machine inspired by original M-O-M design.
Mirror grinding machine ebay. save mirror grinding machine to get e-mail alerts and updates on your ebay feed. + items in search results telescope mirror grinding machine design info plans original 1951. a construction manual for converting the mirror -o-matic. the original mirror -o-matic had a turntable that doubled as a slurry drip pan.
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.
(3) A homemade telescope mirror can be made with more accuracy and smoothness than the mass-produced, commercial mirrors available today. Unfortunately, the cost of mirror grinding kits and pyrex blanks has increased significantly in recent years to the point where any savings from making a mirror versus buying one are minimal at best.
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.
Thin Telescope Mirrors . Abridged from an article appearing in Telescope Making #12 Provided: Courtesy of Astronomy Magazine Article's Author: Bob Kestner . Part I - Grinding . For many years, amateur astronomers and telescope makers thought it essential that glass for telescope primary mirrors be at least one-sixth as thick as its diameter.
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 ...
TELESCOPE MIRRORS, BLANKS, TOOLS, TESTERS, GRINDING MATERIALS, POLISHING MATERIALS, ALUMINISING, MIRROR BOX, RONCHI, LASER, FOUCAULT, ... per kilo $40AUD Tin oxide grinding powder per kilo $30AUD Pumice grinding powder per kilo $30AUD 80 Grade grinding powder per 8" mirror $2AUD 120 " " $2AUD 220 " " $3AUD 320 " " $4AUD 500 " " $6AUD 1000 ...
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