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The Production of Spherical Surfaces By Abrasion Part 9

With the view of avoiding the uncertainties of the hand-process the Earl of Rosse constructed a machine for grinding and polishing specula in which the different motions were susceptible of separate adjustments and were all under complete control A sketch of this machine was published in Sir D Brewster's Journal for October 1828 The Get price

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grinding machine telescope

telescope mirror grinding machine based on Dennis Rech's MoM 20 My Mirror Grinding Machine For a long time I've wanted to build a machine for grinding Get Price A history of polishing machines AstroSurf Model of the machine imagined by Leonardo da Vinci to grind mirrors Model of the Drawing by Huygens representing his lens polishing machine (1683) Drawing The first telescope Get price

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Machine For Grinding Telescope Specula

Machine For Grinding Telescope Specula W Forgan The simple addition to an ordinary lathe for the purpose of grinding telescope specula has been of so much benefit to the author that it was thought if made known through the medium of the Society of Arts it might become useful to others interested Get price

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Making my own fixed post mirror grinding/polishing

15/10/2012Page 1 of 2 - Making my own fixed post mirror grinding/polishing machine - posted in ATM Optics and DIY Forum Hey guys Im thinking of making my own fixed post mirror grinding/polishing and curve generating machine Ive got loads of questions regarding the design so Ill just start firing away Do I need an eccentric moving tool to be able to polish a mirror spherical?Get price

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On casting grinding and polishing speculums for

The Rgh-Grinding and Rgxcring the Speculum -In roughgrinding figuring and polishing the metal two tools only are necessary besides a common grindstone One chief reason why workmen do not give a good figure to their specula is because by pursuing Dr Smith's or Mr Mudge's methods they use too many tools which in a great measure destroy each other's effects As nature always acts in Get price

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grinding machine telescope

telescope mirror grinding machine based on Dennis Rech's MoM 20 My Mirror Grinding Machine For a long time I've wanted to build a machine for grinding Get Price A history of polishing machines AstroSurf Model of the machine imagined by Leonardo da Vinci to grind mirrors Model of the Drawing by Huygens representing his lens polishing machine (1683) Drawing The first telescope Get price

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Making a tin mirror Grinding without tool

07/06/2018Page 1 of 2 - Making a tin mirror Grinding without tool - posted in ATM Optics and DIY Forum Im making a tin parabolic mirror which is 8 inches Telescopes used to be made of mostly copper and some tin but i wanted to see what would happen with just tin I have no tool to grind it so i was wondering if it would be possible to grind without a tool into a hopefully almost perfect parabolic Get price

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Mirror Grinding Machine

29/09/2010Mirror 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 for Get price

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machine for grinding telescope specula

Machine For Grinding Telescope Specula - chestofbooks W Forgan The simple addition to an ordinary lathe for the purpose of grinding telescope specula has been of so much benefit to the author that it was thought if made known through the medium of the Society of Arts it Get price

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Use specula in a sentence

Chiefly owing to the brittleness of this material Lord Rosse's first larger specula were composed of a number of thin plates of speculum metal (sixteen for a 3-foot mirror) soldered on the back of a strong but light framework made of a peculiar kind of brass (2 75 of copper to 1 of zinc) which has the same expansion as his speculum metal Get price

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draper design mirror grinder

Machine For Grinding Telescope Specula draper design mirror grinder – Grinding Mill China draper design mirror grinder Machine For Grinding Telescope Specula Before describing brietly the machines used in grinding mirrors it may be Chat With Sales machine for grinding telescope specula Get price

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Machinery

For example before 2018 a demand of almost 1 000 1 5 m mirror segments has to be fulfilled to produce the ESO E-ELT ground based telescope The market for grinding large optics is a niche but growing market with an annual need of several machines a year Hembrug's product portfolio currently consists mainly of hard turning machines for ultra Get price

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Use specula in a sentence

Chiefly owing to the brittleness of this material Lord Rosse's first larger specula were composed of a number of thin plates of speculum metal (sixteen for a 3-foot mirror) soldered on the back of a strong but light framework made of a peculiar kind of brass (2 75 of copper to 1 of zinc) which has the same expansion as his speculum metal Get price

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Fixed Post Mirror Grinding Table

Telescope Mirror Making Part Rough Grinding This is part 2 of my video series documenting grinding and polishing a inch telescope mirror I'm using a spin or fixed post grinding machine This video shows a few initial stages of making a primary mirror for a telescope After hogging the mirror blank to depth the rough grinding stage begins In Get price

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machine for grinding telescope specula

Machine For Grinding Telescope Specula - chestofbooks W Forgan The simple addition to an ordinary lathe for the purpose of grinding telescope specula has been of so much benefit to the author that it was thought if made known through the medium of the Society of Arts it Get price

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Telescope Grinding Machine

Telescope Mirror Grinding Machine Airfilmsnl Telescope Mirror Grinding Machine 2015316page 1 of 5 Making a Mirror grinding Polishing machine Posted in atm optics and Diy forum hello i am on the half of the way to make a mirror Grinding machine inspired by original mom design made the pulley Arrangement such a way that both the turn table Get price

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Grinding Mill for sale in UK

Used Filtermist Extraction Cnc Machine Lathe Mill Filtermist Extraction Unit Draws mist out of engineers angle plates (1) 3x2 5x3 5 (2) 2 5x2 1x3 these are made of cast iron and have been used mostly for grinding and milling small parts the electric stainless steel coffee spice owns a unique design and classic style which will increase more enjoyments in your life Get price

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Telescope Grinding Machine

Telescope Mirror Grinding Machine Airfilmsnl Telescope Mirror Grinding Machine 2015316page 1 of 5 Making a Mirror grinding Polishing machine Posted in atm optics and Diy forum hello i am on the half of the way to make a mirror Grinding machine inspired by original mom design made the pulley Arrangement such a way that both the turn table Get price

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homemade mirror grinding machine

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 Get price

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Making a Mirror grinding Polishing machine

16/03/2015Page 1 of 5 - Making a Mirror grinding Polishing machine - posted in ATM Optics and DIY Forum Hello I am on the half of the way to make a mirror grinding machine inspired by original M-O-M design I made the pulley arrangement such a way that both the turn table eccentric spins at 50 RPM fixed I wont go for making mirror bigger that 10 5 (or max 12) Get price

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telescope grinding machine

Machine For Grinding Telescope Specula - W Forgan The simple addition to an ordinary lathe for the purpose of grinding More Large Homemade Telescope Making Project - How to make a large homemade telescope including grinding polishing and testing the homemade telescope mirror Lots of photos and guidance on telescope making More telescope grinding machine – Grinding Mill China Get price

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The Rosse six

29/07/2016Leviathan of Parsonstown is the unofficial name of the Rosse six-foot telescope This is a historic reflecting telescope of 72 in (1 8 m) aperture which was the largest telescope in the world from 1845 until the construction of the 100-inch (2 5 m) Hooker Telescope in 1917 Get price

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grinding machines needs

Deburring machines and wide belt grinding machines Our metal grinding machines are built with your needs in mind Timesavers has the solutions for customers who require a machine that can deburr precision grind round the edges with the highest quality and most beautiful finish Get price

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Telescope

Under SPECULUM some details are given respecting the composition the grinding and the polishing of specula As similar information respecting glass lenses is not given under the article LENS the deficiency may to some extent be supplied in this place the reader desirous of more ample information is referred to the third volume of Get price

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Lassell W 1799

Description of a machine for polishing specula with directions for its use together with Remarks upon the art of casting and grinding specula and a description of a twenty-four-foot Newtonian telescope equatoreally mounted at Starfield near Liverpool by W Lassell ( Book )Get price

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Telescope

Under SPECULUM some details are given respecting the composition the grinding and the polishing of specula As similar information respecting glass lenses is not given under the article LENS the deficiency may to some extent be supplied in this place the reader desirous of more ample information is referred to the third volume of Get price

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machine for grinding telescope specula

telescope grinding machine - myedenbe telescope grinding machine Machine For Grinding Telescope Specula- telescope grinding machine Page Dictionary of National Biography volume 32djvu/167 Apr 03 2014 He desired to possess a larger instrument but dissatisfied after inspection with the methods used by Lord Rosse for grinding specula he Get price

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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 Get price

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homemade mirror grinding machine

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 Get price

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Grinding Machine Telescope

Grinding with thin telescope mirror kits Thin glass grinding differs slightly from standard mirror making practices Keep these principals in mind when using your thin mirror kit and you'll be fine Mirror grinding machine construction log James Crombie Mirror grinding machine construction log I started thinking about building my own mirror Get price

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Telescope Grinding Machine Optical Instruments

Telescope Grinding Machine Optical Instruments 250tph river stone crushing line in Chile 200tph granite crushing line in Cameroon 250tph limestone crushing line in Kenya 250tph granite crushing line in South Africa 120tph granite crushing line in Zimbabwe 400tph crushing plant in Guinea Chat Online [email protected] Based on many years of market experiences and R D experiences Get price

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