telescope mirror grinding machine plans
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telescope mirror grinding machine plans

Mirror Grinding Machine

2015-8-14 · 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.

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

On the opposite, a shallow mirror (e.g. F/D = 8) will be performing very well on planets and the moon. The theory behind grinding is that you can remove glass as long as you use a material with a higher hardness. Telescope makers use silicon carbide powders

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Mike's Telescope Workshop - mdpub

2021-2-24 · I finally decided it was time to build a machine to help me grind the edges of the blanks true and round. This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself.

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Mirror-o-Matic mirror making machine - ATM pages

2018-5-16 · 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

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Making a homemade mirror grinding machine - ATM,

2006-3-6 · 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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mirror grinding machine plans in nigeria

I finally decided it was time to build a machine to help me grind the edges of the blanks true and round This is my home-built edge grinding machine for grinding down my home-cast mirror blanks Click to see the whole project This is a 125 inch diameter 15 inch thick light-weight honeycomb-back telescope mirror blank that I made myself...

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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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jeffbaldwin.org

2015-9-7 · 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

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Homemade Telescope Making - Google Sites

(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.

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Mike's Telescope Workshop - mdpub

2021-2-24 · I finally decided it was time to build a machine to help me grind the edges of the blanks true and round. This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself.

Read More

Amateur Telescope Making Main Page - Stellafane

A lot has changed since Russell Porter wrote those words - today the "average workman" can afford to buy an already made telescope and Dobsonian mountings are very popular. Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s.

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How I built an edge grinder for telescope mirror blanks.

2013-2-26 · 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. The large wood circle will become the base of the turntable.

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jeffbaldwin.org

2015-9-7 · 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.

Read More

Building a fixed post mirror grinding machine ...

2019-8-19 · A few years ago, I was thinking about hand grinding a mirror. I watched a YouTube video of John Dobson hand grinding a mirror. I don’t really remember how big it was, but it was big. Maybe 14”. Maybe larger. John was no youngster in this video and even though he is a master, he sure put a hellova lot of labor into that mirror.

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Telescope Mirrors, Blanks, Secondaries, Grinding

2015-12-17 · TELESCOPE MIRROR MAKING BOOKS Advanced Telescope Making Techniques Volume 1 & Volume 2 $60AUD Amateur Telescope Making Volume 1, 2 & 3 $70AUD Build Your Own Telescope Complete plans for 5 high quality telescopes $70AUD The Dobsonian Telescope A practical manual for building large aperture telecopes $82AUD How To Make a Telescope 2nd Edition ...

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Mirror Grinding Machine - ATM, Optics and DIY

2010-9-29 · Mirror Grinding Machine - posted in ATM, Optics and DIY Forum: I have some interest in building a grinding machine for possible up to an 18 mirror , but something that will also do a 6 or 8 mirror. I have plans for the Mir O Matic but would like to do something a bit more modern. I have some ideas about using a AC drive and a large aluminum disk for the turntable and have made a parts list

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Joy of Mirror Making: Rough Grinding - BBAstroDesigns

2020-5-19 · 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.

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Stellafane ATM: Make a Tile Tool

The well used tile tool at right illustrates a couple of maintenance issues. 1. Tiles Grind Away: You may grind through your tiles at the edge, especially if you are making a very fast (low focal ratio) mirror.In that case, you can epoxy a second layer of tiles on over the first.

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build a mirror grinding machine - przyjaciele-serca.pl

This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself. Get Price; Would an amateur telescope maker be able to grind a mirror

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Astro-Tel - Mirror grinding machine

2001-4-12 · 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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Amateur Telescope Making Main Page - Stellafane

A lot has changed since Russell Porter wrote those words - today the "average workman" can afford to buy an already made telescope and Dobsonian mountings are very popular. Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s.

Read More

Telescope Mirrors, Blanks, Secondaries, Grinding

2015-12-17 · TELESCOPE MIRROR MAKING BOOKS Advanced Telescope Making Techniques Volume 1 & Volume 2 $60AUD Amateur Telescope Making Volume 1, 2 & 3 $70AUD Build Your Own Telescope Complete plans for 5 high quality telescopes $70AUD The Dobsonian Telescope A practical manual for building large aperture telecopes $82AUD How To Make a Telescope 2nd Edition ...

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Fixed post mirror grinder advice - DIY Astronomer ...

2011-11-1 · Basically there are two types of grinding/polishing machine. The ‘traditional’ type which involves the mirror rotating at a relatively slow speed, a few rpm for a big mirror (16-20 inches) with the tool moving across the mirror, from side to side, at a higher rpm depending on the size of the mirror

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Building a fixed post mirror grinding machine ...

2019-8-19 · A few years ago, I was thinking about hand grinding a mirror. I watched a YouTube video of John Dobson hand grinding a mirror. I don’t really remember how big it was, but it was big. Maybe 14”. Maybe larger. John was no youngster in this video and even though he is a master, he sure put a hellova lot of labor into that mirror.

Read More

Mirror Grinding Machine - ATM, Optics and DIY

2010-9-29 · Mirror Grinding Machine - posted in ATM, Optics and DIY Forum: I have some interest in building a grinding machine for possible up to an 18 mirror , but something that will also do a 6 or 8 mirror. I have plans for the Mir O Matic but would like to do something a bit more modern. I have some ideas about using a AC drive and a large aluminum disk for the turntable and have made a parts list

Read More

How to Make Your Own Telescope Mirror - Instructables

How to Make Your Own Telescope Mirror: [Fig 1] This is a large piece of glass a woman off Craigslist gave me. It was 40"x40" and 0.75" thick. Its what I decided to use to make the mirror. Cutting it into smaller sections can be difficult but scoring it with a glass cutter

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build a mirror grinding machine - przyjaciele-serca.pl

This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself. Get Price; Would an amateur telescope maker be able to grind a mirror

Read More

Joy of Mirror Making: Rough Grinding - BBAstroDesigns

2020-5-19 · 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.

Read More

Stellafane ATM: Make a Tile Tool

The well used tile tool at right illustrates a couple of maintenance issues. 1. Tiles Grind Away: You may grind through your tiles at the edge, especially if you are making a very fast (low focal ratio) mirror.In that case, you can epoxy a second layer of tiles on over the first.

Read More