Mirror Grinding Telescopemirror Grinding Tool

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Telescope Mirror Blanks / TelescopeMirrorBlanks.Com ...

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 …

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making a tool for grinding a telescope mirror - YouTube

Please help support and donatehttps://&hosted_button_id=LYGQMGQRUW4TSI made a 8" tool for a 10" mirror with dental...

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Mirror grinding | Diy telescope, Refracting telescope ...

Astronomy. Grinding a 25-Inch F3 Telescope Mirror: Thinning and Flattening the Back. Gordon started with a 2" thick telescope mirror that weighed about 70 pounds. By thinning the blank, he's lightened the mirror by about 20 pounds!

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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. ... The grinding/polishing tool is held in place by the quill of the M-o-M.

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When grinding your telescope mirror, you had particles tumbling between the mirror and the tool. They were chipping away at both the tool and the mirror grinding them into spherical unity, one concave and one convex. Polishing the mirror is different, the …

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Mirror grinding - scope making

clockwise, and the tool 30 degrees counterclockwise. Make 7 more strokes, rotate the mirror 60 degrees clockwise, and the tool 20 degrees clockwise. Don't think in degrees, nor numbers, just spin it randomly. Rough grit breaks up quite fast,

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Astronomy: Making a Mirror | El Camino College | Torrance, CA

Mirror and Tool. We start with a mirror blank. This is a round piece of Pyrex glass with one flat face (the bottom) and one face slightly shaped, but very rough. ... Grinding and Polishing. ... Here you see an image of a telescope mirror seen through the Foucault knife edge tester. The green and dark shadows reveal the slope of the mirror at ...

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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 titled, …

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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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Robotic mirror grinding? - ATM, Optics and DIY Forum ...

PeteDCard81, on 21 Jun 2021 - 10:11 AM, said: The Hubble primary mirror was designed to the correct specification (parameters) but ended up misshaped because of an incorrectly assembled null optics test tool. This test tool was acquired from the Perkin Elmer side of the shop that did work on Defense projects.

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Machine grinding a 25" telescope mirror. ...

Grinding 500 grit on a 25" f/3.0 meniscus mirror. Tool is a 19" glass tiled stone tool with about a 3" overhang and about 37 pounds of weight.

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spin grinding a slumped mirror - ATM, Optics and DIY Forum ...

spin grinding a slumped mirror - posted in ATM, Optics and DIY Forum: so after taking a few years off from the hobby to get my wife well i have completed my spin grinder and am ready to tackle the 14 honeycombed mirror that you see as my avatar i had it fused to shape many years ago and it is slumped to an F5 curve. i have not used a spin grinder as yet all my work has been done by hand or ...

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

Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.

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Stellafane ATM Main Page

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 ...

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From Ring Tool to Tile Tool | Telescope Building

(4) we removed the tile tool from the mold and ground the topside (non-tiled side) by sliding it (topside down) on the sidewalk outside the community center. The result is a grinding tool of the same diameter as the mirror: the tiled side has the same curve as the mirror, and the topside is …

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How I make Telescope Mirror Blanks - mdpub.com

It is a fine-looking, near full-thickness, 10 inch diameter blank that I intend to grind and polish into a 1st class telescope mirror. Here is a stack of my home-made 8 and 10 inch mirror blanks. The second from the bottom is the one above. I can use the thinner blank below it as the grinding tool. UPDATE

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Joy of Mirror Making: Polishing - BBAstroDesigns

Here is a 25 inch mirror on top of the fine grinding tool with pads applied. And here is the result after 5 hrs of machine polishing starting from a 20 micron aluminum …

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First time mirror grinding - 6" F4.5ish - DIY Astronomer ...

I bought a used mirror grinding kit from AstroBuySell which includes a 6" 25mm plate glass blank, matching glass tool, pitch, selection of grits etc. The kit appears to be a 30 year kit from Beacon Hill Telescopes. The first owner had taken copious notes while rough grinding out to ~F11 (0.9mm), then switching to 120 grit and smoothing.

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Mirror-Making Workshop - Texas Star Party

You should provide your own materials including mirror, mirror tool and pitch lap, abrasives, etc. We will have some instruction sessions, about an hour or more each day on: Set up & rough grinding: includes Getting set up/overview, Making the Tile Tool, Rough grinding

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Waite Research Telescope Mirrors :: Home

A New 20" f/3.5" Fast Mirror on Quartz, Part 1, Measurements (added 05/03/10) Ronchi and Foucault Tests on the 20" f/4.5 Quartz Telescope Mirror (added 04/29/10) Figuring a 20" Mirror, Part 1: Reducing a High Zone. Figuring a 20" Mirror, Part 2: Smoothing and Blending Techniques. Making a Ceramic Tile and Dental Plaster Grinding Tool

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TELESCOPE MIRROR MAKING HOW TO: Fine Grinding - YouTube

In this video I am showing you how to make a DIY telescope mirror! This is the second part in the series, showing fine grinding in a step by step tutorial.

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Telescope Mirror Grinding Stand - Woodware Designs

Still grinding your own mirror is a key skill that makes you a real telescope maker. To grind a telescope mirror by hand you simply attach a glass tool the same size as your mirror blank to the top of a small, strong stand. You apply grinding compounds to the tool and place the mirror blank on top.

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Joy of Mirror Making: Rough Grinding - BBAstroDesigns

Glass tools can stick and cause scratches in larger sizes. More importantly, the glass tool can be saved and used later as a mirror blank for a second project. Grinding Stands. I use an old printer stand. Here is a 25 inch [635cm] mirror being rough ground followed by a beautiful grinding stand from the Delmarva Mirror Making Seminar. Grinding ...

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Making a Tile Tool for Mirror Grinding (in 150 seconds ...

The condensed process of making a tile tool that will be used to grind my 8.5 inch telescope mirror. Making a mould around the Pyrex disc, mixing and pouring...

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Making a Mirror grinding & Polishing machine - ATM, Optics ...

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. I made the pulley arrangement such a way that, both the turn table & eccentric spins at 50 RPM fixed. I wont go for making mirror bigger that 10.5 (or max 12).

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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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Mirror Grinding - Take A Class Or DIY? - ATM, Optics and ...

Page 1 of 3 - Mirror Grinding - Take A Class Or DIY? - posted in ATM, Optics and DIY Forum: Ive been interested in grinding/polishing my own Newt mirror for a long time but dont know how to get started. As a beginner, would you recommend attending a workshop or class or is it possible to make a good mirror using other learning resources such as books and online videos?

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Stellafane ATM: Grits, Polish & Pitch

Introduction. Grit is a generic name for the abrasive particles used with a hard tool in rough and fine grinding. Polish (or Polishing Compound) is a generic name for the abrasive used with a soft Pitch tool in polishing and figuring. Grit and Polish differ mainly in …

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TELESCOPE MIRROR MAKING HOW TO PART 1: Rough Grinding ...

Welcome to my channel - in this video, we will begin to make a telescope mirror from scratch! I'll be showing you the basics of telescope mirror grinding!Her...

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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 ...

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