• draper grinding machine YouTube

    This is a grinding machine for astronomical parabolic telescope mirrors. The machine can handle primary mirrors up to 80 cm/31.5"We are currently test drivin.

  • A Modified near-draper, near- MOM telescope grinding machine

    Mar 22, 2008· Bill W, Ian K, David G, and I (Guy B) modified an existing quasi-Mirror-O-Matic machine by changing pulley ratios and changing it into sort of a Draper machi.

  • Author: 1950telescopeguy
  • Draper Grinding Machine Máquina Draper YouTube

    Máquina para desgaste e polimento de espelhos de telescópio até 600mm de diâmetro.Configuração Draper.

  • draper design mirror grinder

    Draper Design Mirror Grinder biedernotaire be draper design mirror grinder Telescope Finders and 32 inch Mirror on the Draper The grinding machine New was a sanitary engineer Henry Draper 4 6/5 fm 910 t 910 tub grinder onlinedlwinternship draper design mirror grinder crusherasia.

  • 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.

  • Draper

    Draper develops precision instrumentation systems that exceed the state-of-the-art in key parameters (input range, accuracy, stability, bandwidth, ruggedness, etc.) that are designed specifically to operate in our sponsor’s most challenging environments (high shock, high temperature, radiation, etc.).

  • HENRY DRAPER National Academy of Sciences

    grinding-machine was contrived, and experiments were made with three 151-inch glass disks, as well as with some smaller ones. Three mirrors of the same focal length and aperture, Dr. Draper says, are almost essential in working, for it not infrequently happens that two in succession will be so similar that a third is required for at-

  • GRINDER Draper Tools

    machine's efficiency. This results in increased load on the grinding machine which if continued will damage the motor. Ensure that the diameter of the wheel is within 25% of its original size. Important: Excessive pressure on the machine does not result in a

  • Mirror Grinding Machine Products & Suppliers

    In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse’s design. Advances in Abrasive Technology XVI The superhard diamond grinding wheel with large-grit size plays an important role in precision mirror grinding

  • Mirror Grinding Machine CN Classifieds Cloudy Nights

    Oct 23, 2017· One large item we have is a mirror grinding machine. It is a Draper style machine. It was built by Allan Mackintosh. You may recognize the name. Allan was the author of the well known "Advanced Telescope Making Techniques" books still in print today from Willmann-Bell. Allan was also the Observatory Engineer for Indiana University for about 10

  • Draper Tools Official Website Hand Tools, Power Tools

    Draper Tools Official Website. Established in 1919, Draper Tools is a supplier of quality trade, professional and diy tools. Check out the massive range of tools available from one supplier.

  • Document sans nom Astrosurf

    But throughout this saga, we also encounter professionals : among whom Henry Draper (1837-1882) who was one of the first to carve mirrors in application of Leon Foucault studies. For this purpose, around 1850, he invented a machine inspired by the one designed by Lord Rosse in 1840, which for a long time was the benchmark.

  • Draper

    Draper develops precision instrumentation systems that exceed the state-of-the-art in key parameters (input range, accuracy, stability, bandwidth, ruggedness, etc.) that are designed specifically to operate in our sponsor’s most challenging environments (high shock, high temperature, radiation, etc.).

  • telescope mirror grinding polishing machine with

    Feb 15, 2016· The machine is shown grinding a 300 mm mirror.How to build a tachometer: florin.myip/blog/making-tachometer-grinding-polishing-machine-telescope-m.

  • Author: Florin Andrei
  • The shaping and testing of two 20” optical telescope mirrors

    Large Mirror Making •For many years the standard amateur mirror was 6 inches in diameter with a focal length of 48 inches. •This is a very modest mirror by today's standards when 20 inch (0.5m) mirrors are commonplace and advanced amateurs are creating 40-inch mirrors and planning larger. •There is the current AltAzInitiative where

  • 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" Fig.3, Page 163, "Amateur Telescope Making" Book 1. A bowl which rotated was fitted to the spindle. I also built another machine

  • Draper Expert Ceramic Tile Drill Bit Set Mirror/Glass

    Draper Expert Ceramic Tile Drill Bit Set Mirror/Glass/Tiling Drilling Tool. PLEASE READ THIS ENTIRE LISTING BEFORE COMMITTING TO PURCHASE, once place the order we will make it and ship it, simply machine wash and dry; Please Reference the Variations for All Available Sizes & Colors, Heat Control and Prevent Bird Strikes (Snowflakes. crack and

  • Document sans nom Astrosurf

    Grinding action of a polishing lap : machine figuring a mirror in a fully automatic process, the operator just pressing a button to get the perfect mirror, is a complete dream. Whatever happens, an operator's experience and reactivity will remain essential to ensure a full success to the job. (Draper-type machine with offset arm

  • mirror grinding machines. ATM, Optics and DIY Forum

    Oct 03, 2006· Thanks for the video Jim. I had no idea that these machines ran at those speeds. 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.

  • ON THE MODERN REFLECTING TELESCOPE, AND 'rHE MAKING

    GRINDING AND POLISHING MACHINES. TIlE grinding and polishing machines used by the writer are somewhat similar in principle to Dr. Draper's machine, sho.wn in Fig. 25 of his book, but are more elaborate. I shall describe here the machine used in making the 5·foot mirror, both because it embodies most of the essential features of a-grindingand

  • Draper Expert Ceramic Tile Drill Bit Set Mirror/Glass

    Draper Expert Ceramic Tile Drill Bit Set Mirror/Glass/Tiling Drilling Tool. PLEASE READ THIS ENTIRE LISTING BEFORE COMMITTING TO PURCHASE, once place the order we will make it and ship it, simply machine wash and dry; Please Reference the Variations for All Available Sizes & Colors, Heat Control and Prevent Bird Strikes (Snowflakes. crack and

  • GRINDER Draper Tools

    machine's efficiency. This results in increased load on the grinding machine which if continued will damage the motor. Ensure that the diameter of the wheel is within 25% of its original size. Important: Excessive pressure on the machine does not result in a

  • Mirror Grinding Machine Products & Suppliers

    In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse’s design. Advances in Abrasive Technology XVI The superhard diamond grinding wheel with large-grit size plays an important role in precision mirror grinding

  • ON THE MODERN REFLECTING TELESCOPE, AND 'rHE MAKING

    GRINDING AND POLISHING MACHINES. TIlE grinding and polishing machines used by the writer are somewhat similar in principle to Dr. Draper's machine, sho.wn in Fig. 25 of his book, but are more elaborate. I shall describe here the machine used in making the 5·foot mirror, both because it embodies most of the essential features of a-grindingand

  • Mirror Grinding Machine CN Classifieds Cloudy Nights

    Oct 23, 2017· One large item we have is a mirror grinding machine. It is a Draper style machine. It was built by Allan Mackintosh. You may recognize the name. Allan was the author of the well known "Advanced Telescope Making Techniques" books still in print today from Willmann-Bell. Allan was also the Observatory Engineer for Indiana University for about 10

  • Draper Tools Official Website Hand Tools, Power Tools

    Draper Tools Official Website. Established in 1919, Draper Tools is a supplier of quality trade, professional and diy tools. Check out the massive range of tools available from one supplier.

  • Bench Grinders Draper Tools

    A compact machine Supplied with a 30 grit and 60 grit grinding wheel. Fitted with adjustable eye protection shields, spark deflectors, wheel guards and tool rests. Display carton. more. Stock No: 83420 Part No: LD150 View more

  • Draper

    Draper develops precision instrumentation systems that exceed the state-of-the-art in key parameters (input range, accuracy, stability, bandwidth, ruggedness, etc.) that are designed specifically to operate in our sponsor’s most challenging environments (high shock, high temperature, radiation, etc.).

  • 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" Fig.3, Page 163, "Amateur Telescope Making" Book 1. A bowl which rotated was fitted to the spindle. I also built another machine

  • The shaping and testing of two 20” optical telescope mirrors

    Large Mirror Making •For many years the standard amateur mirror was 6 inches in diameter with a focal length of 48 inches. •This is a very modest mirror by today's standards when 20 inch (0.5m) mirrors are commonplace and advanced amateurs are creating 40-inch mirrors and planning larger. •There is the current AltAzInitiative where

  • Power Tools Draper Tools

    Draper Tools prides itself on the range, quality and value of its power tools and power products From the Draper Expert range to the DIY series, you ll find power tools suitable for professional trade use as well as power tools for household DIY tasks too There are angle grinders, cordless drills, jigsaws, circular saws, generators, sanders, multi tools and more So whether you re sawing

  • (PDF) Development of Metallographic Specimen Polishing Machine

    Nov 02, 2011· The metallographic specimen polishing machine can be used in the material laboratory for the grinding and polishing of any metallic materials. In all, the machine cost N52,170 ($350) to produce

  • Making a homemade mirror grinding machine ATM, Optics

    Mar 06, 2006· Making a homemade mirror grinding machine posted in ATM, Optics and DIY Forum: I want to make a motorized mirror grinder,any good info on this,i have a couple geared motors,low speed high torque. One more questionwill 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you,John

  • Grinding Machine Type ATM, Optics and DIY Forum Cloudy

    Sep 14, 2007· Grinding Machine Type posted in ATM, Optics and DIY Forum: Hy guys,Id like to realize a grinding/polishing machine with the following specifications:- max blank diameter: 400mm (16" circa)- min blank diameter: 125mm (5" circa)- capable of grinding convex and concave surfaces (lenses, mirrors, Mak correctors)Considering ease of fabrication (but I have a lathe and a milling machine), grinding