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  • Mirror grinding scope making

    The test is very simple Rinse and wipe the mirror dry. Draw a grid on the mirror surface with a permanent marker (<--picture) Add the usual half teaspoon of grit, sprinkle with water and grind for a couple of minutes, rotating tool and mirror often.

  • How to Perform Mirror Grinding? DESHENG PRECISION

    Nov 06, 2020· After grinding, the surface roughness of the workpiece is less than 0.01µm (Ra<0.01µm). It is as mirror-like and can be imaged clearly. Therefore, it is called mirror grinding. The flatness of the grinding plane is not more than 3µm/1000mm. The surface processing of high-precision, high-value-added parts usually requires mirror grinding.

  • Joy of Mirror Making: Rough Grinding BBAstroDesigns

    31 rows· Grinding the curve into the mirror face can be done by one of the following approaches:

  • MIRROR DIAMETER2.533.540.1000.0830.07260.1500.1250.10780.2010.1670.143100.2510.2090.179See all 31 rows on bbastrodesigns
  • Fast Mirror Grinding & Polishing The ATMs Workshop

    Nov 15, 2001· Fast Mirror Grinding and Polishing Miscellaneous Tips and Techniques . John D. Upton November 15, 2001 (Updated July 15, 2002) Many ATMs, by their very nature, are experimenters. This article discusses some of the odd techniques I have used in grinding and polishing mirrors. Some were successful, others were tried and discarded for one reason

  • Mirror Glass Grinding Coolant Filtration and Separation

    Mirror Glass. Mirror Glass Grinding Coolant is the lifeblood of your glass manufacturing process. Properly filtering and separating mirror glass grinding coolant so you can deliver clean grinding coolant at the right flow and pressure is very important to produce predictable grinding wheel belt drill life, as well as superior edge quality, and to deliver to your customer (or furnace) the

  • Mirror Grinding Take A Class Or DIY? ATM, Optics and

    May 11, 2017· Page 1 of 3 Mirror Grinding Take A Class Or DIY? posted in ATM, Optics and DIY Forum: Ive been interested in grinding/polishing my own Newt mirror for a long time but dont know how to get started. As a beginner, would you recommend attending a workshop or class or is it possible to make a good mirror using other learning resources such as books and online videos?

  • Do I need yet another eyepiece for PN?Dec 07, 2015Making my own fixed post mirror grinding/polishing machineOct 15, 2012Anyone I.D. this eyepiece..?Sep 12, 2009Make Eyepieces?Aug 21, 2006See more results
  • 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

  • No personal experience of this, but I'll follow the thread with interest if someone chirps up. I'd come to same conclusions as you, looking at exam.On the RPM I think Gordon Waite is king of this stuff and his rough grinder seems to go at about 40, while his polishing seems slower. Should be in.That rotational speed seems a bit quick to me Steve. By "cutting to spherical" Do you mean you intend to hog the mirror blank with sub diameter too.Belts will give a smoother drive and "cut" than gears but might not be particularly important at this early stage. Fine grinding a certainly polish.Barkis Yes, we plan to hog while the mirror is face up with a smaller tool probably 2/3 size. I've been doing some simulations (don't ask to see.Gordon Waite certainly seems to get good results all the way through polishing on his fixed post machine. How much of that is his expert experience.I'm sure you'll do fine with the grinding Steve, I was just a little taken aback by the rotation speed, but as long as the mirror has three robust.Well I got set up, Used my new illuminated reticule eyepiece to mess with drift alignment.That's not as easy as I thought it was! I got questions.Basically there are two types of grinding/polishing machine. The ‘traditional’ type which involves the mirror rotating at a relatively slow speed,.Thx John That's a nice looking machine. What size mirrors have you made so far, and did you work out a strehl rating for them? As a matter of inter.Coated Primary Mirrors.Jan 14, 2019114mm Mirror Advice /damage repairMar 01, 2014See more results
  • How to Perform Mirror Grinding? DESHENG PRECISION

    Nov 06, 2020· After grinding, the surface roughness of the workpiece is less than 0.01µm (Ra<0.01µm). It is as mirror-like and can be imaged clearly. Therefore, it is called mirror grinding. The flatness of the grinding plane is not more than 3µm/1000mm. The surface processing of high-precision, high-value-added parts usually requires mirror grinding.

  • Mirror Grind Glass Grinding Fluid Walker Emulsions

    A synthetic, non-oil fabricating fluid designed especially for the glass and mirror industry. Formulated to affect soft settling of glass swarf with significantly reduced recirculation of fines, which facilitates removal via centrifuge of settling tanks.

  • Mirror Grinding Machine Products & Suppliers

    Description:,mirrors, sub-assemblies and optical thin film coatings.They also manufacture technical & industrial glass and ceramic components, including standard and custom pedestals, precision glass tubes, rods and substrates for use in optical and industrial applications.

  • Mirror Glass Grinding Coolant Filtration and Separation

    Mirror Glass. Mirror Glass Grinding Coolant is the lifeblood of your glass manufacturing process. Properly filtering and separating mirror glass grinding coolant so you can deliver clean grinding coolant at the right flow and pressure is very important to produce predictable grinding wheel belt drill life, as well as superior edge quality, and to deliver to your customer (or furnace) the

  • Diy mirror grinding aspherical : telescopes

    OP is specifically asking about grinding/polishing/figuring the segments of a segmented mirror, which is a far more complex process than a normal parabolic mirror that ATMs make, for both figuring the mirrors themselves, as well as the engineering challenges of positioning the mirror segments.

  • Making a homemade mirror grinding machine ATM, Optics

    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.

  • Custom Optical Mirrors Request High-Volume Production

    With the largest collection of double-sided grinding and polishing machines in North America, Sydor Optics can manufacture custom optical mirrors with virtually any optical coating paired with precision flatness, surface roughness and other critical tolerance specifications. High-volume capabilities; Custom optical mirror manufacturing and

  • mirror grinding kit grind and polish telescope mirror at

    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.

  • Glass Cutting & Waterjet Cutting Swift Glass

    We also offer width options up to 9 inches thick. Our custom jet stream capabilities create the highest accuracy for the smallest details. Additional Specifications for Machinery: Omni-directional jet stream can cut virtually any shape, down to 0.1mm in thickness; Material cutting options for

  • Waite Research Telescope Mirrors :: Home

    Apr 29, 2010· A New 20" f/3.5" Fast Mirror on Quartz, Part 1, Measurements (added 05/03/10) Ronchi and Foucault Tests on the 20" f/4.5 Quartz Telescope Mirror (added 04/29/10) Figuring a 20" Mirror, Part 1: Reducing a High Zone. Figuring a 20" Mirror, Part 2: Smoothing and Blending Techniques. Making a Ceramic Tile and Dental Plaster Grinding Tool

  • Dick Parker's Telescope Mirror Workshop: Cassegrain

    Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.

  • Glass Edging and Polishing North Carolina

    Clearlight Glass and Mirror can make old and scratched glass look new again. Please contact us if your project requires a customized look with our quality edgework or needs a facelift with glass polishing. Clearlight Glass and Mirror can assist you with providing the perfect finishing touch to all your mirror and glass edging or polishing needs.

  • Mirror Polishing Precision Roll Grinding

    Feb 26, 2021· Mirror polishing is performed by our Sufina equipment which is capable of polishing to .25 Ra. A Letter From Our President . During the current situation with the COVID-19 virus, Precision Roll Grinders remains open for business to meet all of our customers’ roll servicing needs.

  • Making a 25 inch F2.6 mirror BBAstroDesigns

    A lightweight mirror makes the work of grinding, polishing and parabolizing so much easier. Astigmatism is not an issue for such a large fast mirror. A simple mirror cell suffices (9 point where each point supports a 2 inch diameter pad back support, 2 pt edge support at 90 degrees separation).

  • China Mirror Grinding Machine, China Mirror Grinding

    China Mirror Grinding Machine, China Mirror Grinding Machine Suppliers and Manufacturers Directory Source a Large Selection of Mirror Grinding Machine Products at grinding machine,surface grinding machine,crankshaft grinding machine from China Alibaba

  • Custom Optical Mirrors Request High-Volume Production

    With the largest collection of double-sided grinding and polishing machines in North America, Sydor Optics can manufacture custom optical mirrors with virtually any optical coating paired with precision flatness, surface roughness and other critical tolerance specifications. High-volume capabilities; Custom optical mirror manufacturing and

  • Making a homemade mirror grinding machine ATM, Optics

    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.

  • Diy mirror grinding aspherical : telescopes

    OP is specifically asking about grinding/polishing/figuring the segments of a segmented mirror, which is a far more complex process than a normal parabolic mirror that ATMs make, for both figuring the mirrors themselves, as well as the engineering challenges of positioning the mirror segments.

  • mirror grinding kit grind and polish telescope mirror at

    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.

  • Precision Lapping Precision Grinding Surface Finishes

    Typical applications include laser mirrors for marking, cutting and welding systems, fold mirrors for optical imaging, and plastic medical components. Tolerances achieved are 5 microinches (1/4 wave) flatness, 50 microinches parallelism, and surface roughness less than 100 angstroms (0.4 microinches).

  • Glass Edging and Polishing North Carolina

    Clearlight Glass and Mirror can make old and scratched glass look new again. Please contact us if your project requires a customized look with our quality edgework or needs a facelift with glass polishing. Clearlight Glass and Mirror can assist you with providing the perfect finishing touch to all your mirror and glass edging or polishing needs.

  • How to Cut a Mirror With Curves eHow

    Cutting a mirror calls for the same procedure as cutting glass — with the proviso that you need to take care not to scratch the back of the mirror, which bears the thin coating that creates the mirror, while you're doing it. Cutting glass, however, is a misnomer. We don't cut the glass; we scribe a score line along which we will break the glass.

  • Custom Optics JNS Glass & Coatings

    Custom Optical Windows JNS Glass & Coatings optical windows are glass or plastic components that typically shield a lens, sensor or lighting system from debris, dust and the force of impact. Aside from stock components, JNS routinely manufactures these windows and covers on a custom basis to various sizes and configurations.

  • Dick Parker's Telescope Mirror Workshop: Cassegrain

    Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.

  • Amazon Best Sellers: Best Glass Cutting Tools

    Glass Cutters Tools for Windows Cutting Thick Glass Mirror Glass Tile and Mosaic Glass, Mirror Cutter Tool is Made in UK Comes with Bottle Glass Cutter Oil Cut Stained Glass Sheets 1mm 21mm Thick ASG Nick's Grinder Mate for Glass Grinding 4.5 out of 5 stars 383. $16.70 #33. Toyo Custom-Grip Supercutter Glass Cutter Assorted Colors

  • Learn Stainless Steel Grinding and Polishing on welding

    हिंदी में समझने क लिए कैप्शन हिन्दी में ON कर ले । Stainless Steel Grinding and Polishing on welded joints is an important

  • Nonuniform Rational Basis Spline Interpolation for Off

    Mar 26, 2021· Large-diameter aspheric mirrors made of hard and brittle materials suffer from low efficiency in the grinding stage, making them difficult to process. In this study, a nonuniform rational basis spline (NURBS) interpolation method is proposed and developed based on the grinding wheel path planning. The characteristic parameters of NURBS machining program are calculated to ensure the

  • Custom Grinding, Polishing, & Finishing Services

    Multimetal has the capability to grind and polish stainless steel from #4 up to #8 super mirror finish. Custom specialty finishes are also applied to several different types of metal and can be modified to customer specifications. We also offer powdercoating services inhouse up to 9.5’x9.5’ x9.5’ capacity.