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Precision mirror grinding and machining of steel-bonded ...

The curve is ground into the mirror face using a grinding tool. The curve is pre-generated for you. The curve is created by slumping the blank in a kiln over a mold. Here are 42 inch [107cm] and 30 inch [762cm] mirrors slumped and annealed to F2.8 ready for fine grinding.

Mirror grinding | Hacker News

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.

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

A table saw covered with layers of newspaper about 1/2 inch thick (to support the mirror and tool) was used as the grinding stand. A "wet" began by spraying the disks with water and smearing a small amount of grit over the tool (or mirror) with my fingers. The mirror (or tool) was then carefully placed on top of the tool (or mirror) and ...

Mirror Grinding Kits - Salon Del Mar

Oct 22, 2018· Subscribe to Daily Mirror and Sunday Mirror newspapers; ... so when you notice something isn't right it could be bad news ... Tooth-grinding, or bruxism, is …

Mirror Finishing a Metal : 7 Steps (with Pictures ...

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...

Mirror-Making Workshop - Texas Star Party

Oct 25, 2020· I need toem to have a mirror finish when I finish the grinding/polishing process. Thanx, guys., 10:44 PM #2. tdmidget. View Profile View Forum Posts Diamond Join Date Aug 2005 Location Tucson AZ Posts 6,567 Post Thanks / Like Likes (Given) 10299 Likes (Received)

mirror grinding machine design - glasinloodentiffany.nl

May 12, 2017· Mirror Grinding Help - posted in ATM, Optics and DIY Forum: I know that someone on here talked about the optimal amount of grit to use but I am more of …

Home - MPP

Mirror Polishing & Plating Company Inc. (MPP), was founded in 1954, and from the first day of operation has continued a relentless drive to the highest standard of service throughout its history from one generation to the next. We focus on the ultimate commitment that every roll leaving our facility will meet the highest standards, ours and yours.

mirror grinding kit grind and polish telescope mirror at ...

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) . DE: Mid-Atlantic Mirror Making Seminars

Mirror grinding - scope making

Any or all of the "mirror stuff" is yours for the postage. See photo 1. Three 6.5" by .75" pyrex blanks. one chipped on one side 2. One 6.75" by 1" blank (very white, maybe quartz but don't know) 3. One 6"mirror kit with plate glass tool, #80 abrasive, pitch and CeO2 polishing powder) 4. A 6" f/2 spherical mirror …

Mirror Grinding Stuff | Astromart

This is good news, it means you do more grinding and spend less time recharging the mirror with grit and water. When you started rough grinding, you sprinkled dry abrasive on the mirror and added water with a spay bottle. This works well for coarser grits.

Mirror-O-Matic

Any or all of the "mirror stuff" is yours for the postage. See photo 1. Three 6.5" by .75" pyrex blanks. one chipped on one side 2. One 6.75" by 1" blank (very white, maybe quartz but don't know) 3. One 6"mirror kit with plate glass tool, #80 abrasive, pitch and CeO2 polishing powder) 4. A 6" f/2 spherical mirror …

Rough Grinding a 20" Quartz Telescope Mirror on the Fixed ...

Mirror Grinding Kits. 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.

Mirror Grinding Stuff | Astromart

Materials for grinding and polishing comparable to those listed above can be found in Turkey. The largest mirror surface I produced is about 4 by 6 centimeters (1.6 by 2.4 inches). With experience, one could probably select an optimum set of materials to expedite the creation of a mirror surface.

ATM 6" Mirror Grinding? | Yahoo Answers

Placing the mirror face up and grinding with a moderate "W" stroke will also move the curve toward the edge, and tends to produce a more spherical surface. Leaving the mirror grossly hyperbolic will make fine grinding difficult. Fine Grinding . We've all heard stories about fine grinding taking hundreds of …

World Wide Mirror Class List - Stellafane

Sometimes its really difficult dealing with metals like copper and brass (Two metal that we'll be dealing with) .Mirror finishing a metal like the copper plate I have shown in this Instructable, isn't really hard or difficult to achieve, especially when your projects requires metal parts.A dull non-finished metal part look's tacky than an well finished part.

Stellafane ATM: Fine Grinding

All our Mirror Kits contain a Pilkington Float Glass mirror blank and Grinding Tool. These arefinished with fine ground edges. 180 grade first stage ginding powder. 400 grade ginding powder. 303 grade smoothing powder. Top quality Cerium Oxide Polishing powder.

Grinding it Out - Archaeology Magazine Archive

Oct 21, 2016· I am grinding a 6" mirror for newtonian telescope. When I start fine grinding with 400 grit carborundum and 800, it leaves scratches and lines on my mirror. Is it ok to have these kinds of lines on the mirror because I will coat the mirror with aluminium. Or …

Mirror Grinding Help - ATM, Optics and DIY Forum - Cloudy ...

Oct 22, 2018· Subscribe to Daily Mirror and Sunday Mirror newspapers; ... so when you notice something isn't right it could be bad news ... Tooth-grinding, or bruxism, is …

Homemade Telescope Making - Google Sites

Materials for grinding and polishing comparable to those listed above can be found in Turkey. The largest mirror surface I produced is about 4 by 6 centimeters (1.6 by 2.4 inches). With experience, one could probably select an optimum set of materials to expedite the creation of a mirror surface.

What your mouth can tell you about your health ... - mirror

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 ...

Grinding it Out - Archaeology Magazine Archive

If one of our standard telescope mirror blanks isn't exactly what you're looking for, Advanced Glass can custom make a telescope mirror blank to your specifications. AGI can manufacture mirror blanks up …

What your mouth can tell you about your health ... - mirror

A table saw covered with layers of newspaper about 1/2 inch thick (to support the mirror and tool) was used as the grinding stand. A "wet" began by spraying the disks with water and smearing a small amount of grit over the tool (or mirror) with my fingers. The mirror (or tool) was then carefully placed on top of the tool (or mirror) and ...

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

The use of ELID mirror grinding technology for precision machining of steel-bonded cemented carbides makes it easy to obtain low-roughness mirrors. I. The basic principle of ELID grinding technology On-line electrolytic dressing mirror grinding is a new ultra-precision machining technology developed in Japan in …

Sleepwalking? Snoring? Grinding your teeth? Find ... - mirror

The center of the mirror is the most likely to be contacted by any motion, so it is abraded more frequently and becomes the deepest point, while the edges are worn less. The distribution between "less" and "more" is spherical. I can at least understand the process of grinding or lapping a surface flat. Here are a couple examples: