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  • kolkata telescopes mirror grinding equipment
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    Types of mirror grinding machines - ATM Optics and DIY 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 mirrorIt is cheaper it is softer and grinds faster needing less abrasives and with these small sizes the...

  • build a mirror grinding machine mining
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    Mirror Grinding Machine telescope mirror grinding machine based on Dennis Rech s M-o-M 20 My Mirror Grinding Machine For a long time I ve wanted to build a Get Price Mirror Making Machine dv-fansler In the beginning was the barrel I was divorced poorer than a church mouse and could not afford the material to build a mirror grinding...

  • Newport Glass Works LTD Grinding Polishing and Figuring
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    Thin Telescope Mirrors Abridged from an article appearing in Telescope Making 12 Provided Courtesy of Astronomy Magazine Article s Author Bob Kestner Part I - Grinding For many years amateur astronomers and telescope makers thought it essential that glass for telescope primary mirrors be at least one-sixth as thick as its diameter...

  • Mirror Grinding Machine Hackaday
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    Sep 26 2006 0183 32 The true test of the amateur astronomer is building their own telescope Grinding and polishing your own mirrors is a long arduous process Instead of...

  • Industrial Hand
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    Mirror Finishing Stainless Nonferrous Metals With a Linear Grinder Using a hand-held linear grinding machine is an easy cost-effective way to polish large and small pieces to a mirror finish First pregrind and prepolish with the pyramid-shaped abrasive grit mentioned previously...

  • 24 F/6 thin telescope mirror grinding 3/4 plate
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    Nov 06 2013 0183 32 Page 1 of 2 - 24 F/6 thin telescope mirror grinding 3/4 plate - posted in ATM Optics and DIY Forum A friend and I have decided to grind this as a fun yet challenging project I have ground and polished several mirrors including a 6 85 92 and 147 quartz mirror I have decided to take the next step with this ultra-thin setup I know it is bordering on the edge of extremely thin with a 32...

  • Hand Grinding a Telescope Mirror Make
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    May 30 2014 0183 32 This is how you make a telescope mirror out of a hunk of glass Use a sand mixture and another piece of glass to grind away the middle of a concave shape Repeat with finer and finer grit sand Dave Barosso demonstrates the technique but to do it yourself try to visit one of the Telescope Makers Workshop s classes on Friday nights in Oakland...

  • Grinding Machine for Large Telescope Mirrors
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    Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches 11m 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...

  • Amateur Telescope Making Main Page
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    There are a lot of misconceptions about making a mirror - read this even if you don t plan to make a mirror but just want to know how it is done - with your bare hands and a few simple tools you can grind and figure a fine mirror with a surface accurate to a few millionths of an inch Telescope Formulas and Design Comparator...

  • How to Make Your Own Telescope Mirror
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    How to Make Your Own Telescope Mirror Fig 1 This is a large piece of glass a woman off Craigslist gave me It was 40 x40 and 075 thick Its what I decided to use to make the mirror Cutting it into smaller sections can be difficult but scoring it with a glass cutter...

  • Fixed post mirror grinder advice
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    Nov 01 2011 0183 32 Hi AllWeve been having some idle discussions about grinding mirrors here In particular weve been discussing building a fixed post mirror grinding turntable for cutting mirrors up to about a 24inch diameter to spherical Its only a pipe dream at the...

  • Homemade Telescope Making
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    3 A homemade telescope mirror can be made with more accuracy and smoothness than the mass-produced commercial mirrors available today Unfortunately the cost of mirror grinding kits and pyrex blanks has increased significantly in recent years to the point where any savings from making a mirror versus buying one are minimal at best...

  • Diy mirror grinding aspherical telescopes
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    Amateur telescopes however are MUCH smaller than 82 meters and thus it s quite possible for an amateur to grind a 24 36 or even a 48 inch mirror -- no need to combine multiple mirrors On top of the impracticality of building an amateur scope out of multiple mirrors there s the issue of positioning all the mirror segments...

  • mirror grinding paraboloid
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    Telescope Mirror Making Part 1 YouTube Jul 08 2012 Part 1 of me grinding and polishing a 125 inch telescope mirror I m using a home built fixed post or spin grinder Make a PARABOLIC Mirror the cheap way PARABOLOID DIY REFLECTOR DIRECT TV Get price Stressed mirror polishing 2 Fabriion of an offaxis...

  • homemade telescope mirror grinding machine
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    Mirror Grinding Machine Atm Optics And Diy Forum Sep 29 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...

  • How I make Telescope Mirror Blanks
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    It is a fine-looking near full-thickness 10 inch diameter blank that I intend to grind and polish into a 1st class telescope mirror Here is a stack of my home-made 8 and 10 inch mirror blanks The second from the bottom is the one above I can use the thinner blank below it as the grinding tool UPDATE...

  • tut44 Making A Mirror Grinding Tool
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    want to learn more about Newtonian telescopes the internet is replete with information about all types of telescop 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...

  • Rough Grinding a 20 Quartz Telescope Mirror on the Fixed
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    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 abrasi...

  • Grinding Polishing and Figuring
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    Fine grinding I change from my rough grinding area to my fine grinding and polishing area after 220 not before 220 is still gritty stuff The W stroke This is a casual way of describing any stroke that goes forward and backward while progressing left to right or right to left on the mirror...

  • Mirror grinding
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    Well that depends Mostly on the mirror size you wish to grind and the prices of the local market In the US telescope mirrors are the cheapest A decent 6 150 mm mirror can be bought for under 100 In Europe prices are usually twice if not three times that...

  • Fixed Post Mirror Grinding Table
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    May 23 2015 - Fixed Post Mirror Grinding Table - designed with 123D Design...

  • How to grind a mirror for a telescope
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    Aug 09 2011 0183 32 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...

  • Mirror Grinding Machine
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    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...

  • Telescope Mirror Grinding Machine Products Suppliers
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    The Copernicus 5 paraboloidal mirrors were the first X -ray telescope mirrors lapped and polished at the NPL in 1971 using a conventional workshop grind- ing machine with a horizontal spindle and which was converted into a lapping machine...

  • Telescope Mirrors Blanks Secondaries Grinding Materials
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    TELESCOPE MIRRORS BLANKS TOOLS TESTERS GRINDING MATERIALS POLISHING MATERIALS ALUMINISING MIRROR BOX RONCHI LASER FOUCAULT per kilo 40AUD Tin oxide grinding powder per kilo 30AUD Pumice grinding powder per kilo 30AUD 80 Grade grinding powder per 8 mirror 2AUD 120 2AUD 220 3AUD 320 4AUD 500 6AUD 1000...

  • Telescope Making Supplies
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    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...

  • Joy of Mirror Making Rough Grinding
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    Motorized grinding wheel on the end of along boom that is anchored that is moved back and forth across the mirror face Diamond wheel grinder rubbed against the mirror face a few millionths of an inch in the mirror s surface for a typical amateur telescope We grind and polish to a sphere then figure to a parabola We test at the sphere s...

  • How to Make Your Own Telescope Mirror
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    May 5 2019 - How to Make Your Own Telescope Mirror Fig 1 This is a large piece of glass a woman off Craigslist gave me It was 40 x40 and 075 thick Its what I decided to use to make the mirror Cutting it into smaller sections can be difficult but scoring it with a glass cutter and tapping the...

  • home made grinding polishing machine detailed plan
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    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 Here is a sketch I did of Mars on September 7 2003 with the 145 inch F/8 telescope service online...

  • How To Build a Dobsonian Telescope DIY Astronomy Project
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    Oct 09 2008 0183 32 You too can avoid astronomical costs by watching stars through a tricked-out cardboard tube PM builds one and speaks to John Dobson the man behind the plans about the joys of...

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