Mirror Grinding Build

home made telescope - Building a Telescope | Build a ...

I was divorced, poorer than a church mouse and could not afford the material to build a mirror grinding machine. Joy of Mirror Making: Introduction. Stone tools go back 3.3 million years. Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors …

Build A Mirror Grinding Machine - cispilzno.pl

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 ...

Large Thin Mirror Making - BBAstroDesigns

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. Yet, the larger the mirror you make the more money you can save when compared to buying a mirror …

Joy of Mirror Making: Rough Grinding - BBAstroDesigns

Mar 06, 2006· The larger one is for grinding and polishing mirrors and is also used at higher speeds to centrifugally cast resin mirrors, an experiment I am playing with in my spare (sic!) time. The smaller mirror is used for power wrapping epoxy impregnated fiberglass around mandrels for making tubes and cylindrical components for open trusses.

Building a fixed post mirror grinding machine ...

Hi Everyone, I am thinking of re-starting mirror grinding at home. I used to grind by hand and in this method, when we use the 1/3rd off-centre strokes for hogging out the sagitta, the upper glass becomes concave and would be polished into a mirror. However, this time Id like to build a Mirror-O-...

Mirror-O-Matic

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.

Wooden Telescope Part 1: the Mirror : 14 Steps (with ...

I decided to try my hand at grinding an polishing my own mirror. Before I took the plunge of buying glass I wanted to see if I could build the required devices needed to grind, polish, and test a mirror. Build a Ronchi / foucault tester. Build a machine to grind the mirror (AKA mirror-o-matic) Buy some glass. Mirror …

Mirror Grinding Machine

Making A Mirror Grinding Tool By Allen Malsburry ... "I can buy a better telescope than I can build." Neither is actually correct. For many decades now, amateur astronomers have been building their own telescopes. In the good old days, building your own telescope was the only way to …

Optical Testing of Parabolic Mirrors : 9 Steps (with ...

Nov 01, 2011· 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 …

build a mirror grinding machine - proman.co.za

Build A Mirror Grinding Machine. Mirror Grinding Machine Hackaday, Sep 26 2006 the true test of the amateur astronomer is building their own telescope grinding and polishing your own mirrors is a long arduous process instead of Build A Mirror Grinding Machine.

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

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.

build a mirror grinding machine - proman.co.za

I was divorced, poorer than a church mouse and could not afford the material to build a mirror grinding machine. Joy of Mirror Making: Introduction. Stone tools go back 3.3 million years. Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors …

How I built an edge grinder for telescope mirror blanks.

A major supplier of blanks and supplies for those considering grinding their own mirrors. Newport's sells educational kits for beginners that include the cost of vacuum coating. To compare to ASM, for example, Newport has 8 inch kits, including vacuum coating and a secondary mirror for …

World Wide Mirror Class List - Stellafane

Build A Mirror Grinding Machine. Mirror Grinding Machine Hackaday, Sep 26 2006 the true test of the amateur astronomer is building their own telescope grinding and polishing your own mirrors is a long arduous process instead of Build A Mirror Grinding Machine.

Mirror grinding - scope making

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:

Mirror Grinding Primary - mill machine

Here's a list of items that you will need to build your mirror: • A glass blank made from a material with a low expansion coefficient (Pyrex, Borosilicate, Duran 50, Zerodur, etc) • Silicon carbide in different grit size (example: 60, 80, 120, 220, 320) • Aluminium Oxide (25, 15, 9 and 5 microns) • Cerium Oxide • Pitch • Sharpening stone • Waterproof plaster (dental plaster ...

Mike's Telescope Workshop - Mike's World.

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.

Large Homemade Telescope Making Project

Build A Mirror Grinding Machine Proman. I was divorced poorer than a church mouse and could not afford the material to build a mirror grinding machine Joy of Mirror Making Introduction Stone tools go back 33 million years Pounding scraping knapping grinding combined with fire heat melting leads us today to grinding telescope mirrors. Read More

All About Telescopes, How to Build, Use, Mirror Grinding ...

A mirror mount is needed to hold the mirror during testing. If the mirror is a 'thin' mirror (i.e. the thickness is much less than 1/8th its diameter) then the mount must hold the mirror without deforming it. The weight of the glass can deform a thin mirror. In my case, I was making a full-thickness mirror, which is a mirror whose thickness is 1/8th the diameter or more, so mirror deformation ...

Astro-Tel - Mirror grinding machine

Sep 28, 2014· The machine could start grinding now. I still need to build the electronics, and then there's painting and finishing. ... Making a Tile Tool for Mirror Grinding (in 150 seconds!)

Build A Mirror Grinding Machine - cispilzno.pl

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.

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

While grinding the first mirror I discovered that there is a range of test equipment that I needed to aquire or build to analyse the steps along the way. The spherometer is used to measure the mirror curvature as it roughed out, the mirror stand to hold it for testing, the foucault tester to do the focal plane testing, a light source for the ...

Telescope-Making Books: The Good, the Bad, and the ...

May 07, 2011· Build Your Own Telescope by Richard Berry. If you're looking for the best book to take you all the way from grinding your own mirror to building your first telescope, look no further — this is it. It's also among the most recently published, though that really isn't saying much. Berry's classic is now more than 25 years old, so don ...

Elgin Mirror Grinding Machine - Campus Rugby 2019

31 · Rough Grinding The first milestone is putting a curve into the mirror face. The curve's depth …

Mirror Grinding Machine - ATM, Optics and DIY Forum ...

hold mirror making workshops at their clubhouse in Westford, MA on Thursday evenings. U.S. Mid-Atlantic. DC: NCA Telescope Making and Mirror Grinding Classes Twice Weekly on Tuesday & Friday 6:30-9:30 PM in Washington, DC at the Chevy Chase Community Center. Contact: (202) 262-4274. DE: Mid-Atlantic Mirror Making Seminars

telescope mirror grinding / polishing machine with ...

Aug 19, 2019· I've decided to build my own fixed-post glass grinding and polishing machine. Gordon Waite is probably one of the better mirror makers using this machine and have incorporated some of his ideas into my plan. ... 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 ...

SkyBadger - Mirror Grinding Machine

I eventually decided I needed to build a dedicated edge grinding machine. This is how I did it. I started the build by making a sturdy frame for the unit out of 2x4 lumber and 3/4 inch thick plywood. Wheels were added to the bottom of the unit so it can be wheeled outside. The grinding operation will be messy, so it will need to be done outside.

Telescope Making Supplies

Dumore Grinding, grinding stone, Parabolic Mirror In Telescope Mirrors & Prisms, Telescopes, Sam Edelman Boots US Size 8 for Women, Sam Edelman Boots US Size 7.5 for Women, Telescope Mirrors, grinding face shield, Metalworking Cup Grinding Wheels