mirror grinding machine

mirror grinding machine

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. Most of them came from industrial junk yards.

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CouderPrn

Be careful that you do not move the mirror. Turn the mask 90 degrees and measure all

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Horace's Kiln 2

20 inch on brand new MOM 20 with an oversized turntable. Horace is already

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Quick Start

EZ3D Designer - Quick Start. Introduction. EZ3D uses a three axis coordinate system

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Ez3d

The Introduction. There is an on-line "Quick Start" introduction that will get you up to

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Horace Davis

I had an idle mirror grinding machine (a modified MOM 20), so I volunteered to grind

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Designing

Designing the base box was a little easier. Starting with the original M-o-M 20

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PrintaRonchi

PrintaRonchi is a small Windows program for drawing Ronchi screens. It works only in

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Upgrades1

Some Recent Machine Modifications. I made my machine more Zeiss like by mounting

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Mirror Grinding Machine » Leonardo Da Vinci's Inventions

The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it. This machine was most likely designed by Leonardo while he was either investigating the different ways that light reflected off things or maybe he was planning on ...

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Mirror Grinding Machine, G. W. Ritchey National Air and ...

This object is on display in the Space Science at the Steven F. Udvar-Hazy Center in Chantilly, VA. 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 ...

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Mirror Grinding Machine Hackaday

Sep 26, 2006  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.

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Mirror Grinding Machine Products Suppliers ...

In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse’s design. Advances in Abrasive Technology XVI The superhard diamond grinding wheel with large-grit size plays an important role in precision mirror grinding

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

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Mirror-o-Matic mirror making machine - ATM pages of ...

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.

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Mirror grinding machine construction log - James Crombie

Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. Having been on the ATM list now since almost the beginning of it here on the web, I had lots of of inspiration reading of others projects and viewing their webpages

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Making a homemade mirror grinding machine - ATM, Optics ...

Mar 06, 2006  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 couple geared motors , low speed high torque. One more question ...will 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you , John

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Parabolic Mirror Grinding Machines Products Suppliers ...

Products/Services for Parabolic Mirror Grinding Machines. Grinders and Grinding Machines - (982 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish. Devices can be pneumatically driven or powered by a combustion engine or electric motor.

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Mirror Grinding Machine, G. W. Ritchey National Air and ...

This object is on display in the Space Science at the Steven F. Udvar-Hazy Center in Chantilly, VA. 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 ...

Read More
Mirror Grinding Machine » Leonardo Da Vinci's Inventions

The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it. This machine was most likely designed by Leonardo while he was either investigating the different ways that light reflected off things or maybe he was planning on ...

Read More
Mirror Grinding Machine Products Suppliers ...

In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse’s design. Advances in Abrasive Technology XVI The superhard diamond grinding wheel with large-grit size plays an important role in precision mirror grinding

Read More
Drive Motor, Mirror Grinding Machine, G. W. Ritchey ...

The original grinding machine was used under the sponsorship of Hale to grind a 60-inch mirror initially intended for the Yerkes Observatory. The grinding machine was moved to Pasadena in 1904 to complete work on the mirror; at some point it was transferred to the California Institute of Technology.

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Parabolic Mirror Grinding Machines Products Suppliers ...

Products/Services for Parabolic Mirror Grinding Machines. Grinders and Grinding Machines - (982 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish. Devices can be pneumatically driven or powered by a combustion engine or electric motor.

Read More
Mirror grinding machine construction log - James Crombie

Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. Having been on the ATM list now since almost the beginning of it here on the web, I had lots of of inspiration reading of others projects and viewing their webpages

Read More
Leonardo Da Vinci's mirror making machines

One machine is designed for grinding concave mirrors of small focal length. The other machine, a much larger piece to implement, grinds mirrors of large focal lengths. Though Leonardo da Vinci creates sketches of mirror grinding, one crucial and logical question to ask is whether he used such mirrors in his artwork or drawing.

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From the kiln of Horace Davis - Mirror Grinding Machine

I had an idle mirror grinding machine (a modified MOM 20), so I volunteered to grind and polish his blanks and check for strain using the cross-polarized light test. Soon, three plate glass blanks arrived, two 10 inch and one 7.5 inch. They looked pretty bad. They showed a lot of strain where Horace had taken a belt sander to them.

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jeffbaldwin.org

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 tool, or about 1/8 diameter of the mirror, and is fixed in this position.

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Mirror grinding - scope 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 ...

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Leonardo Da Vinci's mirror making machines

ÝÝÝÝÝÝÝÝÝÝÝ In his Codice Atlantico, Leonardo offers two of sketches of mirror making machines .Ý One machine is designed for grinding concave mirrors of small focal length.Ý The other machine, a much larger piece to implement, grinds mirrors of large focal lengths.Ý Though Leonardo da Vinci creates sketches of mirror grinding ...

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US1171174A - Parabolic-mirror-grinding machine. - Google ...

Parabolic-mirror-grinding machine. Applications Claiming Priority (1) Application Number Priority Date Filing Date Title; US86695214A US1171174A (en) 1914-10-16: 1914-10-16: Parabolic-mirror-grinding machine. Publications (1) Publication Number Publication Date ...

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

The problem with thin mirrors is that they flex more easily during grinding and polishing, making it hard to achieve the required surface precision. They also need a more complex mirror cell (additional support points). Plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass:

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China Mirror Grinding Machine, China Mirror Grinding ...

Alibaba offers 5,413 mirror grinding machine products. About 14% of these are metal polishing machine, 5% are bearing balls, and 4% are glass processing machinery. A wide variety of mirror grinding machine options are available to you, There are 5,413 mirror grinding machine suppliers, mainly located in Asia.

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Parabolic Mirror Grinding Machines Products Suppliers ...

Products/Services for Parabolic Mirror Grinding Machines. Grinders and Grinding Machines - (982 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish. Devices can be pneumatically driven or powered by a combustion engine or electric motor.

Read More
Leonardo Da Vinci's mirror making machines

ÝÝÝÝÝÝÝÝÝÝÝ In his Codice Atlantico, Leonardo offers two of sketches of mirror making machines .Ý One machine is designed for grinding concave mirrors of small focal length.Ý The other machine, a much larger piece to implement, grinds mirrors of large focal lengths.Ý Though Leonardo da Vinci creates sketches of mirror grinding ...

Read More
Drive Motor, Mirror Grinding Machine, G. W. Ritchey ...

Drive Motor, Mirror Grinding Machine, G. W. Ritchey. National Air and Space Museum. Addthis Share Tools

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From the kiln of Horace Davis - Mirror Grinding Machine

I had an idle mirror grinding machine (a modified MOM 20), so I volunteered to grind and polish his blanks and check for strain using the cross-polarized light test. Soon, three plate glass blanks arrived, two 10 inch and one 7.5 inch. They looked pretty bad. They showed a lot of strain where Horace had taken a belt sander to them.

Read More
Mirror grinding machine - Thomas, Griscavage Frank

Mirror grinding machine . United States Patent 2779137 . Inventors: Thomas, Griscavage Frank . Application Number: US45742954A . Publication Date: 01/29/1957 . Filing Date: 09/21/1954 . Export Citation: Click for automatic bibliography generation ...

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Mirror grinding - scope 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 ...

Read More
Waite Research Telescope Mirrors :: Home

Apr 29, 2010  Fine Grinding a 20" Quartz Telescope Mirror. Rough Grinding on the Fixed-Post Mirror Grinding Machine. Hogging the Curve on a 20" f/4.5 Quartz Telescope Mirror. Astronomy magazine names Waite Research's Renegade telescope a top astro product of 2015. The 20" Renegade telescope offers fabulous viewing without climbing a ladder.

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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. There are lots of good ideas there.

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Mirror-o-matic

The Machines: Documentation: Information for ATMs Zip archive of Mirror-o-Matic Yahoo Groups (2000-2019) 307 MB Contact Dennis. The Machines: Documentation: Information for ATMs Zip archive of Mirror-o-Matic Yahoo Groups (2000-2019) 307 MB Contact Dennis ...

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Large Thin Mirror Making - BBAstroDesigns

In addition, a great deal of money will be saved: a finished 24" scope will set you back $7,000; grinding your own mirror and building the mount yourself will cost you $2,000. Amateurs have made mirrors up to 41" by hand. A grinding machine relieves the labor, but is not necessary. A 24" is the largest you can comfortably do solo.

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Stellafane ATM:Mirror Making Myths

With the Mirror on top, the tool on the bottom, and coarse grit in between, we start grinding with the mirror overhanging the tool. We rub the center of mirror against the edge of the tool, and this wears a depression in the center of the mirror (the edge of the tool wears down also, so that the tool becomes convex (a "hill" in the center) and ...

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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 ...

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tut44 Making A Mirror Grinding Tool - Asterism.org

After fine grinding is complete, the mirror must be polished. It is during polishing that you “figure” the mirror by using a different polishing stroke to change the mirror’s spherical polished shape into a parabolic polished shape . See a related tutorial nearby

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CN103495916A - Numerical control mirror grinding machine ...

the mill illuminating apparatus is a kind of machine that grinds optical mirror plane, for spherical mirror, can directly grind easily, for aspherical mirror, generally rely on grinding technology to be controlled, in process, need constantly to detect and reconditioning, complex process, high to workman's specification requirement, thereby with high costs.For resin lens, the eyeglass that ...

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