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Telescope 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 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type.

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 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 .

Mirror Grinding Machine G W Ritchey National Air and

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 telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory.

mirror grinding kit grind and polish telescope mirror at

Telescope Mirror Kits Firsthand Discovery. 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 Please note that our kits do not include a grinding tool or pitch lap If you need materials for making a .

mirror grinding kit grind and polish telescope mirror at

Telescope Mirror Kits Firsthand Discovery. 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 Please note that our kits do not include a grinding tool or pitch lap If you need materials for making a .

Types of mirror grinding machines ATM Optics and DIY

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

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 .

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 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 .

GRINDING A TELESCOPE REFLECTOR WITH TOOL

Grinding telescope reflectors of 15-inch diameter and over makes it necessary to employ a motor-driven turntable. Small mirrors are generally ground and polished by rotating the tool fastened to the turntable and working the mirror blank by hand either in straight or in circular strokes over the tool. In this case the overhang of the mirror .

Telescope mirror grinding machine pottery wheel CN

Mar 04 2021 Up for sale is my telescope mirror grinding machine pottery wheel. I used this machine to grind a telescope 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 .

Mirror Grinding Machine G W Ritchey National Air and

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 telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory.

Telescope mirror grinding machine pottery wheel CN

Mar 04 2021 Up for sale is my telescope mirror grinding machine pottery wheel. I used this machine to grind a telescope 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 .

Astronomy Options Astronomy Mirror Making Telescopes

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 .

telescope mirror grinding machine plans

AstroTel Mirror grinding machine. MIRROR GRINDING MACHINE I made my first mirror grinding and polishing machine over thirty years ago It used the ing principle of the machine illustrated at A Fig3 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. Get Price

SkyBadger Mirror Grinding Machine

The mirror machine came to me as a result of astronomical horse-trading swapping a large GEM mount and a 8 Newtonian OTA for the machine as it was and a start kit consisting of two 6 blanks and the grit rouge and pitch to manufacture a mirror. The grinding machine had been built to the design of the mirror-o-matic design of Dennis Rech .

AstroTel 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 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type.

Amateur Telescope Making Main Page Stellafane

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 .

Telescope Making Supplies

Throughout the grinding and final lapping stages the objective has been to reduce pits and scratches to the smallest possible size. However no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first-class telescope objective. Different techniques are

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.

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 .

How I make Telescope Mirror Blanks

Now that I have several blanks made it is time to grind and polish one into a telescope mirror and test it out. I can use one blank as the mirror and another as the grinding tool and have a couple in reserve in case something goes horribly wrong during the grinding and polishing operations. Ill post an update once a mirror is completed.

SkyBadger Mirror Grinding Machine

The mirror machine came to me as a result of astronomical horse-trading swapping a large GEM mount and a 8 Newtonian OTA for the machine as it was and a start kit consisting of two 6 blanks and the grit rouge and pitch to manufacture a mirror. The grinding machine had been built to the design of the mirror-o-matic design of Dennis Rech .

Telescope Making Links Designs and Techniques STAR

GrindingPolishing 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 Waineos Desktop GrindingPolishing Machine Ken Liljas Grinding Machine Grinding Machine Figuring Figuring a Paraboidal mirror by thermal .

Homemade Telescope Making Google Search

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.

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 Articles 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.

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