making telescope mirrors from granite





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How to Make a Homemade Telescope | SciencingApr 24, 2017· How to Make a Homemade Telescope , Prepare a drawing of the telescope to help figure out the spacing of the three primary optical elements--the mirror, the diagonal and the eyepiece In this example we will use a 42-inch focal length mirror, 6 inches in diameter The radius of the 8-inch outer diameter tube is 4 inch...know more

What are the best sources for mirror blanks? - ATM, Optics ,Jun 12, 2016· What are the best sources for mirror blanks? - posted in ATM, Optics and DIY Forum: Ever since I found Stellafanes mirror making page, Ive been itching to build my own telescope Im going to start with a 6-8in Newt (the classic beginning ATM project!) All I need now are the materials! I can find the yogurt containers pretty easily For the rest of it, I had to do a little searching...know more

Mel Bartels' Amateur Telescope Making - BBAstroDesignsWhat's New - Making is the Key to Knowing I work on large very fast thin mirrors, the biggest problem in telescope design Super fast large mirrors mean 'feet on the ground observing' and fast imaging The IAU named asteroid 17823 Bartels discovered 1998 by JMRoe in recognition for my contributions to amateur astronomy...know more

Joy of Mirror Making: IntroductionStone 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...know more

Stellafane ATM:Mirror Making MythsI need a Well Equipped Shop to Make a Mirror or Telescope at Home; Not True! As you have read above, you really need no tools to make a mirror at home If you want to build a telescope, you will need some simple hand tools - a hand saw, a drill, ruler, hammer and screwdriver - ,...know more

Telescope Mirror Making - YouTubeMay 03, 2015· Making a Ceramic Tile and Dental Plaster Grinding Tool for the 20" f/45 Telescope Mirror - Duration: 9:04 GordonWaite 28,604 views...know more

How to Make a Homemade Telescope | SciencingApr 24, 2017· How to Make a Homemade Telescope , Prepare a drawing of the telescope to help figure out the spacing of the three primary optical elements--the mirror, the diagonal and the eyepiece In this example we will use a 42-inch focal length mirror, 6 inches in diameter The radius of the 8-inch outer diameter tube is 4 inch...know more

Making a telescope mirror with resin - Page 2 - ATM ,Sep 02, 2017· Page 2 of 4 - Making a telescope mirror with resin - posted in ATM, Optics and DIY Forum: Look around for some astronomy clubs They may have a mirror making workshop As I recall, you can hog out a 6 glass mirror in a night or 2 and polish the next night, then spend a few days converting to a parabola There must be a lot of astronomy clubs in India...know more

Granite mirrors? - ATM, Optics and DIY Forum - Cloudy NightsDec 23, 2013· He bought a mirror grinding "kit" from a local telescope maker in Kansas City, Missouri, that included a standard molded Pyrex mirror blank, but the tool was made of granite It is the only granite mirror tool that I've ever seen It looks a lot like the mirror blank shown in the link above, but only about 1/2" thick...know more

TELESCOPE MIRROR ALUMINISING - Telescopes & AstronomyTelescopes & Astronomy Telescope Mirrors, Blanks, Tools, Aluminising, Testing, and Materials for Mirror Making Please email or call for information, pricing confirmations and shipping pric INDEX TELESCOPE CONSTRUCTION WEB SITE "WHAT'S NEW?" ORDERING INFORMATION: OTHER PRICE LISTS: UPDATED 7th June 2014: TELESCOPE GLOSSARY YouTube BBC Sky at ....know more

How I Make Light-Weight Hexagon or Honeycomb Telescope ,Handing a large telescope mirror to someone who has never seen one before, is a revelation to them about just how heavy glass really is I like to tell them that it is as heavy as granite In a large telescope, the primary mirror can constitute 1/3 or more of the weight of the entire instrument...know more

Four Lessons in Mirror Testing - OpticsThe mirror's correction was quite accurate according to multiple sets of measurements, so the overcorrection was simply from a mirror that was cooling off This is perfectly normal, even for Pyrex Many think Pyrex is the perfect telescope mirror material, but it is not...know more

How telescope is made - material, manufacture, making ,A telescope mirror can be made from glass that is somewhat less pure than that used to make a lens, since light does not pass through it Often a strong, temperature-resistant glass such as Pyrex is used Pyrex is a brand name for glass composed of silicon dioxide, boron oxide, and aluminum oxide ....know more

How I make Telescope Mirror Blanks - mdpubThis is a full-thickness, 8 inch diameter telescope mirror blank that I made myself This web page will show how I did it Why make my own mirror blank? Why not? I build telescop I have built a lot of telescopes over the last 20+ years I like to fabricate as much of each scope as possible myself...know more

Telescope Mirrors - Orion OpticsThe majority of these primaries we make are bought by amateur telescope makers or just customers who want to upgrade the optics in their imported, usually Chinese branded telescope These mirrors or any telescope we may supply with these mirrors is not supplied with a full Zygo report Professional...know more

Can You Do It? Make your own telescope mirror, that is?Can You Do It? Make your own telescope mirror, that is? by Doug Scobel Printed in Reflections: June, 2003 Make your own Newtonian telescope mirror that is? Most people think it is such a daunting task that they never even consider it...know more

Make a Reflective Telescope | Activities | UNAWEReflecting telescop Isaac Newton developed the reflector telescope around 1680 Instead of using a lens to gather light, like the refractor telescopes in use at this time, Newton used a curved, metal mirror (primary mirror) to collect the light and reflect it to a focus point Newton placed the primary mirror in the back of the tube...know more

Telescope Mirrors - Orion OpticsThe majority of these primaries we make are bought by amateur telescope makers or just customers who want to upgrade the optics in their imported, usually Chinese branded telescope These mirrors or any telescope we may supply with these mirrors is not supplied with a full Zygo report Professional...know more

GSO Parabolic Primary Mirror - 16" f/45Besides parabolic primaries, we also offer matching GSO secondary elliptical mirrors, mirror cells, and spiders (all sold separately) Please Note: Most parabolic mirrors will have 2-4 minor uncoated areas along the edge of the mirror See photo 2 above for an example These are caused by the clips used to hold the mirrors in the coating chamber...know more

Mirror grindingtelescope making, mirror grinding, homemade tripod, eyepieces, astronomy How do you turn a chunk of glass into a telescope mirror, with a surface accurate to a couple millionths of a millimeter ? And why do you wish to do so? Printer friendly version of this tutorial (*pdf)...know more

Photos: Casting Mirror No 5 for the Giant Magellan TelescopeStaff members at the University of Arizona's Richard F Caris Mirror Lab recently began making the fifth mirror for the Giant Magellan Telescope See photos here...know more

TELESCOPE MIRROR ALUMINISING - Telescopes & AstronomyTelescopes & Astronomy Telescope Mirrors, Blanks, Tools, Aluminising, Testing, and Materials for Mirror Making Please email or call for information, pricing confirmations and shipping pric INDEX TELESCOPE CONSTRUCTION WEB SITE "WHAT'S NEW?" ORDERING INFORMATION: OTHER PRICE LISTS: UPDATED 7th June 2014: TELESCOPE GLOSSARY YouTube BBC Sky at ....know more

telescope mirror grinding / polishing machine with ,Feb 14, 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...know more

Casting a Large, Light-Weight Telescope Mirror From ,So imagine the piece of granite that was cut out of a granite countertop to make a sink opening That piece of granite is about the same size and weight as a large telescope mirror It's heavy stuff In a large telescope, the primary mirror can constitute 1/3 or more of the weight of the entire instrument...know more

How to Make a Powerful Telescope at Home | SciencingHow to Make a Powerful Telescope at Home , If you're a budding astronomer, you'll be pleased to know you don't have to spend big bucks on a fancy telescope Instead, you can make your own simple 9x magnification Galilean telescope at home It's affordable yet powerful enough to see many of the wonders the sky has to offer...know more

Telescope Mirror Kits - Firsthand DiscoveryWant 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...know more

How I make Telescope Mirror Blanks - mdpubThis is a full-thickness, 8 inch diameter telescope mirror blank that I made myself This web page will show how I did it Why make my own mirror blank? Why not? I build telescop I have built a lot of telescopes over the last 20+ years I like to fabricate as much of each scope as possible myself...know more

Joy of Mirror Making: Rough Grinding - BBAstroDesignsRough grinding a telescope mirror The Joy of Mirror Making Mel Bartels Rough Grinding , By contrast, stone and concrete tools are very heavy A granite stone tool can be used without tiles, if channels are cut into the face Concrete tools take weeks to cure and are hard to handle gently because of their weight, cracking when dropped...know more

40+ Epic Homemade Telescopes (w/ How To Make Guides ,Jan 22, 2013· The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century, using glass lens They found use in terrestrial applications and astronomy Within a few decades, the reflecting telescope was invented, which used mirrors...know more

Joy of Mirror Making: Rough Grinding - BBAstroDesignsRough grinding a telescope mirror The Joy of Mirror Making Mel Bartels Rough Grinding , By contrast, stone and concrete tools are very heavy A granite stone tool can be used without tiles, if channels are cut into the face Concrete tools take weeks to cure and are hard to handle gently because of their weight, cracking when dropped...know more