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  • Gold Flotation Production Line

    Gold Flotation Production Line

    Flotation is widely used in gold Processing. In China, 80% rock gold is Processed by flotation. Flotation…

    Manganese Ore Magnetic Separation Production Line

    Manganese Ore Magnetic Separation Production Line

    Manganese ore belongs to the weak magnetic minerals, which can be recovered by high-intensity magnetic…

    Graphite Ore Beneficiation Process

    Graphite Ore Beneficiation Process

    Xinhai usually applying multi-stage grinding process to protect graphite flake from damaged. Applying…

    Gold Cil Processing Line

    Gold Cil Processing Line

    Gold CIL (Carbon in Leach) Process is an efficient design of extracting and recovering gold from its…

    Cu Pb Zn Dressing Process

    Cu Pb Zn Dressing Process

    Adopting mixed flotation-concentrate regrinding Process can reduce the grinding cost, and be easy to…

    Dolomite Mining Process

    Dolomite Mining Process

    Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based…

    mirror grinding mirrors

  • telescope mirror grinding / polishing machine with

    15/02/2016· Making a 33 cm f/48 mirror on the Mirror o Matic 6 polishing the surface with a pitch lap Duration 9:12 Jan van Gastel 3 159 views

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  • Mirror Grinding Machine Hackaday

    26/09/2006· 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

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  • Grinding a 25 Inch F3 Telescope Mirror Thinning and

    16/12/2014· Gordon started with a 2 thick telescope mirror that weighed about 70 pounds By thinning the blank he's lightened the mirror by about 20 pounds! This video explains how he ground off the excess

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  • 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

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  • How to grind a mirror for a telescope

    9/08/2011· How to grind a mirror blank into the well figured basis for a Dobsonian telescope How to grind the glass how to carry out a focus test how to polish with a pitch lap and how to find the focal

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  • Telescope Mirrors Blanks Secondaries Grinding Materials

    telescope mirrors blanks tools testers grinding materials polishing materials aluminising mirror box ronchi laser foucault telescope mirror aluminising mirror size (ins) aluminium + quartz r91% aluminium enhanced r95% silver enhanced + protected r98% 6 $210aud $245aud $275aud 8 $270aud $305aud $342aud 10 $330aud $365aud $409aud 11 $360aud $395aud $443aud 125

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  • 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 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 If the mirror

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  • tut44 Making A Mirror Grinding Tool asterismorg

    Typically the primary mirror is made of glass Pyrex is commonly used for the primary mirror because of its thermal stability but for small mirrors plate glass will work fine too Telescope mirrors are relatively thick The concave shaped face is made by repeatedly rubbing the primary glass blank over another blank called the tool

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  • Telescope mirror grinding

    24/03/2016· Here we show how we are grinding the back of a mirror flat using the 'fixed post grinding' method

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  • Telescope Mirror Kits firsthanddiscoverycom

    Want to build your own telescope? Start with one of our telescope mirror kits Each kit comes with a telescope mirror blank and all the abrasives (silicon carbide grits and white aluminum oxide powders) cerium oxide polish and pitch to grind and polish it to your specifications

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  • Mirror Grinding Machine ATM Optics and DIY Forum

    29/09/2010· 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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  • Door Mirror Folding Issue Volvo V40 Forums

    11/01/2016· You can then remove the 3 screws The mirror unit is now only held in by a spigot in the middle with a small red clip Hold the mirror at the fold and use a small screwdriver to press down the red clip you should now be able to tilt the mirror upwards to release it from the door (the top edge has a tab that fits under the window trim)

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  • Mirror grinding Hacker News

    10/03/2017· 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:

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  • SkyBadger Mirror Grinding Machine

    The mirror machine came to me as a result of astronomical horse trading swapping a large GEM mount and a 8 Newtonian OTA for the machine as it was and a start kit consisting of two 6 blanks and the grit rouge and pitch to manufacture a mirror The grinding machine had been built to the design of the mirror o matic design of Dennis Rech

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  • Mirror Grinding Machine ATM Optics and DIY Forum

    29/09/2010· 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

    Live Chat
  • mirror grinding machines ATM Optics and DIY Forum

    3/10/2006· When I built my machine I didn't have a computer or any books on building grinding machines so I built one that mimics the stroke a person would do For instance my turntable rotates at just one RPM and the stroke eccentric turns at 36 RPM The eccentric that controls the side to side motion turns at 11 RPM I can adjust the length of the stroke and the side to side

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  • Ed Grinds a Mirror

    28/05/2000· Introduction This summer (2000) I joined a mirror grinding class hosted by our local club's ATM committee Despite having looked through hundreds of telescopes through my observing career I had to admit I had never ground my own mirror; in fact my knowledge of the whole subject was rather sketchy at best

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  • Simultaneous mirror grinding ATM Optics and DIY Forum

    14/02/2012· Simultaneous mirror grinding posted in ATM Optics and DIY Forum What are the pros and cons of grinding two mirrors with equal specs simultaneously apart from the pro that one can always use the same grit size for both of them and that one has two telescopes in the end? What about the tool after finishing certain cycles on the first mirror the tool will have

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  • Zambuto Optical Company Newtonian Telescope Mirrors

    world class Newtonian primary mirrors Since 1997 the Zambuto mirror has been setting a performance benchmark in the premium telescope industry against which others are measured and against which others measure themselves Zambuto Optical Company consistently maintains a no compromise standard which results in Newtonian mirrors of finest quality in contrast and

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  • Telescope Mirror Blanks / TelescopeMirrorBlanksCom

    Please see the Buy Telescope Mirror Blanks page for low prices on plate glass mirror blanks If you'd like to buy a complete mirror grinding KIT with all abrasives and grinding tool included please see the Buy Telescope Mirror Kits website for the lowest prices on plate glass telescope mirror grinding kits

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  • Towing Mirrors Supercheap Auto

    Buy caravan towing mirrors Extend your view with our top range of top range of extension towing mirrors Shop online in store or click collect today!

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  • Mirror grinding scope making

    You might purchase a mirror grinding kit and have everything you need included If such a kit is unavailable you need to do some scrounging You can order a 19 mm thick disc at your local glass shop Such glass is usually used for tabletops and window displays

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  • WOS Wenk Observatory Solutions

    After fine grinding the mirror has to be polished The tool made from plaster is the same as used for fine grinding but now carries a special polishing

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  • Telescope Mirror Kits firsthanddiscoverycom

    Want to build your own telescope? Start with one of our telescope mirror kits Each kit comes with a telescope mirror blank and all the abrasives (silicon carbide grits and white aluminum oxide powders) cerium oxide polish and pitch to grind and polish it to your specifications

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  • Amateur Telescope Making Main Page Stellafane

    Amateur Telescope Making Main Page Russell Porter 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

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  • Astro Tel Mirror grinding machine

    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 Fig3 Page 163 Amateur Telescope Making Book 1 A bowl which rotated was fitted to the spindle I also built another machine of the same type Also a Hindle type machine for a

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  • Telescope Making Supplies

    Throughout the grinding and final lapping stages the objective has been to reduce pits and scratches to the smallest possible size However no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first class telescope objective Different techniques are needed While there is still

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  • Newport Glass Works LTD Grinding Polishing and Figuring

    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 hours If done correctly however

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  • Mirror mirror symmetry magazine

    This was the high fire event the day the glass reached its melting point freeing it to flow into a honeycomb patterned mold on its way to becoming one of the largest telescope mirrors in the world Now after months of cooling and more than six years of grinding and polishing the mirror is complete

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  • Mirror Grinding Machine

    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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  • Mirror grinding safety ATM Optics and DIY Forum

    14/02/2012· Mirror grinding safety posted in ATM Optics and DIY Forum When grinding mirrors ATMs use grit sizes as small as 9 5 3 or sometimes even 1 micron I am not yet at such small sizes and do not yet have to mix grit and water in a bottle to pour drops of it onto the mirror I wear a dust mask to be sure not to breathe in any grinding dust as I have read in a book that someone had to see a

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  • Joy of Mirror Making Rough Grinding

    31 rows· The center will deepen during the first stage of fine grinding as contact is achieved across

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  • Grinding Machine for Large Telescope Mirrors

    I designed and built a grinding machine for mirrors up to 42 inches 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

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  • Stellafane ATM:Mirror Making Myths

    As we explain in our mirror making demonstrations at the Stellafane Convention the basic mirror making process involves grinding the mirror blank into a sphere with desired radius of curvature for the target focal length We then polish this sphere smooth and then slightly alter it into a parabolic curve

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  • Mirror sanding

    15/06/2014· Cutting and sanding a mirror edge Cutting and sanding a mirror edge Skip navigation Sign in Search Loading Close This video is unavailable Watch Queue Queue Watch Queue Queue Remove

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  • Study on a 5 axis precision and mirror grinding of glass

    The precision freeform grinding depends on the on machine truing of diamond wheel leading to the inefficiency of grinding system Hence a virtual ball end algorithm along with a fixed tool posture angle is proposed for the 5 axis grinding of glass by using a self dressing diamond wheel

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  • Mirror Grinding Machine Hackaday

    26/09/2006· 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

    Live Chat