making a mirror grinding machine

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

The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. It embodies the "sub-diameter tool" design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by programmable rotating arms.

Stellafane Links Page

Rough Grinding in the great outdoors at the Stellafane Mirror Class (October 2002 Stellafane Mirror Class) Telescope Making Workshops and Seminars. Links to World Wide Mirror Class Listings. Link to the Stellafane Mirror Class. Astronomy Conventions & Star Parties

Newport Glass Works, LTD. Grinding, Polishing and Figuring ...

This is why you don't want to make mirrors to be worked on machines too thin. For 16" to 18" mirrors, 1.62" thick is the thinness I would recommend. There are several ways to support the grinding and polishing machine turntable, but first make .

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.

Testing Equipment · Ronchi Screen Making · AltAz Stepper PCB · Deep Sky · Observatory

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.

Grinding Machine for Large Telescope Mirrors

Grinding Machine for Large Telescope Mirrors. I designed and built a grinding machine for mirrors up to 42 inches [1.1m] in diameter. By slipping on and off a couple of belts, the machine can quickly be reconfigured for spinning work or for stroking work. The machine can also work smaller mirrors if the drip pan is moved to the fast shaft on ...

Fixed post mirror grinder advice - DIY Astronomer ...

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 and/or tool. ... Fixed post mirror grinder ...

Document sans nom - Astrosurf - Astronomie

More recently, George Willis Ritchey, in his turn, improved and used the same type of machine, in the United States first (particularly for the making of the 2.5 meter mirror destined for the Mount Wilson Hooker telescope) then in France at the optics laboratory of the Dina foundation at the Paris observatory.

Stellafane ATM Main Page

US suppliers of Mirror Blanks, Grinding & Polishing Supplies, and Telescope Making Supplies. Astronomy Clubs Many can offer help with your project. Astronomy Conventions & Star Parties A good place to look at various telescopes and chat with their owners. Mirror Making Courses & Workshops

Wooden Telescope Part 1: the Mirror: 14 Steps (with Pictures)

Some amateurs actually use grinding machines to cut most of the grinding and polishing time. Figuring is actually the most sensitive part. Machines can achieve a good result for longer focal ratio (f/6, f/8, etc) but hand figuring is probably still the best option, especially for faster mirrors.

Mirror grinding - scope making

telescope making, mirror grinding, homemade tripod, eyepieces, astronomy . ... If you are making this mirror to practice your skills for a future, large mirror you want to make, a fast, F4 - F5 mirror is probably your best choice. The future, large mirror will also be something like F4.5 so this is a good way to practice parabolising. ...

Joy of Mirror Making: Introduction - bbastrodesigns

Stone tools go back 3.3 million years. 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.

Homemade Mirror Grinding Machine - HomemadeTools

Homemade mirror grinding machine constructed from angle iron, an electric motor, speed reducer, eccentric mechanism, pulleys, and bearings.

grinding machine for making - launch-me

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.

tut44 Making A Mirror Grinding Tool - asterism

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, " Making A Mirror .

Mirror Making Machine, Mirror Making Machine ... - Alibaba

Alibaba offers 9,698 mirror making machine products. About 1% of these are metal coating machinery, 1% are glass processing machinery, and 1% are plastic injection machines. A wide variety of mirror making machine options are available to you, such as ce, cb.

Mirror Grinding Machine, Mirror Grinding Machine ... - Alibaba

Alibaba offers 11,984 mirror grinding machine products. About 1% of these are grinding machines, 1% are glass processing machinery. A wide variety of mirror grinding machine options are available to you, such as ce, ul, and ur.

How to Make Your Own Telescope Mirror - instructables

You can do this without a drill press or turntable but youll need to make sure and always move around the table just as you would while fine grinding. When making a mirror remember RANDOM RANDOM RANDOM. Random is the golden rule that will make this mirror better than any machine can. If you made it this far your doing very good.

Fixed post mirror grinder advice - DIY Astronomer ...

M-o-M Free Preview - Mirror-o-matic

Mirror-o-Matic was designed to be a very low cost astronomical mirror grinding, polishing and figuring machine. Its attributes are: 1. It can be built for somewhere between $200 and $400. 2. It is constructed of hardware store items and it needs no machined parts. 3. It is constructed primarily of 3/4 inch plywood and has few close tolerances. 4.