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joy of mirror making: rough grinding

Joy of Mirror Making: Rough Grinding BBAstroDesigns

31 rows 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.

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Joy of Mirror Making: Introduction BBAstroDesigns

Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors from glass. Making a telescope mirror is one of the most satisfying and sublime joys you will experience. It's also arguably the most accurate surface made by man or machine.

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Make your own telescope mirror: Rough grinding YouTube

Apr 03, 2020 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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Telescope Mirror Making: Part 3, Rough Grinding YouTube

Sep 23, 2012 After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with 60/90 grit. The wets are lasting about 90 second...

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Rough Grinding of a Telescope Mirror Guy's Math & Astro Blog

Dec 15, 2014 The ground-up glass and grit will make a muddy slurry, which will eventually slow down the grinding process. C. Try not to wrap your hands around the edge of the mirror towards the edge, if at all possible. This will heat up the edge of the mirror, making it expand, which can cause bad, unexpected results.

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Telescope Making, Rough Grinding a 12.5 inch primary mirror

Aug 02, 2009 In this video, I continue the rough grinding of the primary mirror for my Buchroeder Quad Schiefspiegler telescope. I have decided, against

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Telescope Making, Rough Grinding a 12.5 Inch Primary

In this video, I continue to work on my 12.5 inch primary mirror for the Buchroeder Quad Schiefspiegler. I am running into problems as the mirror is wearing

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Joy of Mirror Making: Polishing BBAstroDesigns

Polishing a mirror is one of the great joys you will experience as a maker and builder. It's also arguably the most accurate surface made by man or machine. If the mirror is expanded to the size of a football field, then the mirror’s surface will be smooth to 1/1000 inch or 1/30 millimeter!

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Is grinding a mirror really that hard??? ATM, Optics and

Mar 16, 2002 The "knack" of making a mirror is an acquired ability. You get the knack by doing. The qualities most important are patience, perseverance, and the ability to learn from mistakes. I admire your enthusiasm and desire to make a large dia mirror for your first mirror, but I think it would be a mistake. Make a 6" mirror first.

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Build your own telescope part 1: The mirror Thomas

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.

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Rough Grinding of a Telescope Mirror Guy's Math & Astro Blog

Dec 15, 2014 The ground-up glass and grit will make a muddy slurry, which will eventually slow down the grinding process. C. Try not to wrap your hands around the edge of the mirror towards the edge, if at all possible. This will heat up the edge of the mirror, making it expand, which can cause bad, unexpected results.

More

Telescope Mirror Making: Part 3, Rough Grinding YouTube

Sep 23, 2012 After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with 60/90 grit. The wets are lasting about 90 second...

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Rough Grinding a 20" Quartz Telescope Mirror on the Fixed

Mar 07, 2010 This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, you'll see how abrasiv...

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Telescope Making, Rough Grinding a 12.5 inch primary mirror

Aug 03, 2009 In this video, I continue the rough grinding of the primary mirror for my Buchroeder Quad Schiefspiegler telescope. I have decided, against the advice of my friend, Dick Parker, to go with a

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Build your own telescope part 1: The mirror Thomas

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.

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Is grinding a mirror really that hard??? ATM, Optics and

Mar 16, 2002 The "knack" of making a mirror is an acquired ability. You get the knack by doing. The qualities most important are patience, perseverance, and the ability to learn from mistakes. I admire your enthusiasm and desire to make a large dia mirror for your first mirror, but I think it would be a mistake. Make a 6" mirror first.

More

Grinding my first 6" f/8 Telescope Mirror YouTube Diy

Grinding my first 6" f/8 Telescope Mirror This video shows a few initial stages of making a primary mirror for a 6" f/8 telescope. I'm a newbie so bear with me in my ignorance as a first timer making...

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jeffbaldwin

A mirror making machine enables the optician to multitask as well as save their own bodies from the horrors of mirror making work. Small mirrors can get just plain boring to push around, but large mirrors can be physically demanding and detrimental to your arms, back and attitude. Here is a shot of Jeff Baldwin’s 40” project from around 2000.

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Mirror-o-Matic

Mirror-o-Matic Operations Manual Revised 2 May, 2002. Mirror-o-Matic will take most of the manual labor (some call this drudgery, some call it joy) out of mirror making.Because the mirror is rotated on a turntable, it will have a very nice figure of revolution. The chance of producing a severely astigmatic mirror is greatly reduced.

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The Ecstasy of Sitting on a Man’s Face by Holly Bradshaw

Oct 22, 2019 A woman sitting on a man’s face is the epitome of making the time and effort to make sure she gets just as much pleasure out of sex. Being so

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Rough Grinding a 20" Quartz Telescope Mirror on the Fixed

This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, you'll see how abrasi...

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Stellafane ATM:Mirror Making Myths

Mirror Making Myths. Mirrors can only be made with Special Precision Equipment in Expensive Factories or Labs; Not True! Telescope mirrors can be made in your kitchen, basement or garage with nothing more than the mirror blank and a second piece of glass (called the tool) to rub the mirror against with an abrasive grit and water slurry.

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Mirror grinding Telescope, Telescopes, Mirror

Jun 7, 2018 telescope making, mirror grinding, homemade tripod, eyepieces, astronomy

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Ed Grinds a Mirror scopereviews

-Ed 5/29/00) Chapter One: Rough Grinding, May 28, 2000 I arrived on a cool Sunday afternoon in May, and started grinding with five other club members in a local barn. Right away, there was pressure on me; I had missed the first two-hour grinding session and everyone was well ahead of

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Telescope Mirror Making: Part 3, Rough Grinding YouTube

Sep 23, 2012 After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with 60/90 grit. The wets are lasting about 90 second...

More

Rough Grinding of a Telescope Mirror Guy's Math & Astro Blog

Dec 15, 2014 The ground-up glass and grit will make a muddy slurry, which will eventually slow down the grinding process. C. Try not to wrap your hands around the edge of the mirror towards the edge, if at all possible. This will heat up the edge of the mirror, making

More

Rough Grinding a 20" Quartz Telescope Mirror on the Fixed

Mar 07, 2010 This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, you'll see how abrasiv...

More

Stellafane ATM: Rough Grinding

This page describes the rough grinding process. Before You Start. Use this checklist to make sure you are ready to start rough grinding: You have selected a mirror diameter and focal ratio, and have use these to calculate a target sagitta.; You have a way to measure sagitta.; You have an appropriate size mirror blank, you have selected a surface to grind, and you have beveled the edge.

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Grinding Tool Mirror

Joy of Mirror Making: Rough Grinding BBAstroDesigns . Mel Bartels Rough Grinding The first milestone is putting a curve into the mirror face. The curve's depth dictates the mirror's

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Homemade Telescope Making Google Sites

Next, I ground down the rough edge using a grinding stone and water and created a reasonably round disk 2 3/4 inches in diameter. This lens blank had a positive meniscus shape. For the lens grinding tools I used the bottoms from two other jars. Joy of Mirror Making by Mel Bartels.

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mirror grinding machine design glasinloodentiffany.nl

mirror grinding machine design. mirror grinding machine design Mirror Grinding Machine ATM, Optics and DIY Forum ,- mirror grinding machine design ,This image shows the 3D model of the overarm assembly I added to my small spin-post grinding machine (I'm building a bigger one now based on the same basic overarm design) In the one shown, the overarm is ,..

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Waite Research Mirrors For Telescopes Science

The first step is to grind in a rough curve on the front of the blank. The target radius for the generated curve is about 120" to make an F4.0 mirror. The glass starts with two flat faces. We use an abrasive cup grinding on an angle to make one side go concave as the blank rotates under the grinding cup.

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Mint-Tin Software Defined Radio Make: Ham radio, Radio

Dec 12, 2014 Steve, AKA Flickr user 3dking, built this mint-tin, PCB-less(!) SDR upverter, which switches your software-controlled Ham radio from VHF to HF. I built

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mirror grinding inventions chaletgroenbos.nl

mirror grinding machines TRAIN VEDETTES. Mirror grinding machine runout ATM Optics and DIY Forum . nbsp 0183 32 Page 1 of 2 Mirror grinding machine runout posted in ATM Optics and DIY Forum I am in the process of making a fixed post mirror grinding machine big enough for a 20 inch mirror I have now got the motor pulleys two shafts and turntable all together and working The turntable rotates

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Martine vinarstvihoracek.cz

Making a Mirror grinding Polishing machine 16-03-2015 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

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