machine for grinding telescope specula

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Rough Grinding a 20 Quartz Telescope Mirror on the Fixed

07.03.2010GordonWaite 13K subscribers 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 abrasive

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Grind and Polish a Dobsonian/Newtonian Telescope

Making a telescope about 10 years ago was one of the most rewarding projects I've ever undertaken. I ground the mirror and made every other component out of recycled materials as much as possible. This

ritchey telescope mirror grinding machine

Machine For Grinding Telescope Specula. Before describing brietly the machines used in grinding mirrors, Ritchey gives in his Memoir the difference in regard Read More. Astronomics - Astro-Tech 10 f/8 Ritchey-Chrtien optical tube and the four 8.2 meter telescopes of the Very Large Telescope array in Chile are all Ritchey mirror grinding

Telescope Mirror Making: Part 3, Rough Grinding

23.09.2012Telescope Mirror Making: Part 3, Rough Grinding 128,914 views Sep 23, 2012 505 Dislike Share Save AZ Mike 4.96K subscribers After hogging the mirror blank to depth, the rough grinding stage

Joy of Mirror Making: Rough Grinding

Here are 42 inch [107cm] and 30 inch [762cm] mirrors slumped and annealed to F2.8 ready for fine grinding. The first method is by far the most popular. Grinding the curve into the mirror face can be done by one of the following

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21.07.2006Are machine-made telescope mirrors better than those made my hand? Mirror-making at Stellafane. Richard Koolish. In general, no. Making a telescope mirror is a two-step procedure. First you generate and refine the curve in the glass, and then you carefully modify that curve, in the process known as figuring, to give the mirror's polished

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Building a fixed post mirror grinding machine

19.08.2019I've decided to build my own fixed-post glass grinding and polishing machine. Gordon Waite is probably one of the better mirror makers using this machine and have incorporated some of his ideas into my plan. I like the fixed-post plan vs others with eccentric drives, because it gets the heavy grinding done in an automated manner, but still give

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Nov 06, 2020 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.

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TUT44 Making a Mirror Grinding Tool

Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." Most amateur astronomers believe, "I can buy a better telescope than I can build." Neither is actually correct. For many decades now, amateur astronomers have been building their own telescopes. In the good old days, building your own telescope was the only

The Monster Telescopes: Erected by the Earl of Rosse,

The Monster Telescopes: Erected by the Earl of Rosse, Parsonstown, with an Account of the Manufacture of the Specula, Full Descriptions of All the Machinery Connected with These Instruments

Waite Research Mirrors For Telescopes

23.09.2015244 views, 10 likes, 0 loves, 1 comments, 1 shares, Facebook Watch Videos from Waite Research Mirrors For Telescopes: Our newest grinding and polishing machine

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A surface grinder is a machine tool used to provide precision ground surfaces, either to a critical size or for the surface finish. The typical precision of a surface grinder depends on the type and usage, however 0.002 mm (0.0001 in) should be achievable on most surface grinders. The machine consists of a table that traverses both longitudinally and across the face of the

telescope mirror grinding machine for sale

Custom Telescope Mirror Grinding Machine Needs refurbishing can grind up to 12 inch telescope mirrors one of a kind do NOT contact me with unsolicited services or offers Mirror grinding machine Hackaday. Sep 26, 2006 0183 32 Grinding and polishing your own mirrors is a long, arduous process Instead of lapping the blank by hand, Laurie Hall built this mirror

Using the Fixed

16.02.2014Gordon Waite sets up his fixed-post mirror grinding machine to begin rough grinding on an 11 f/4.3 telescope mirror. He uses a grinding tool made from dental plaster and steel pieces

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Sphere Grinding Mechine

Machine For Grinding Telescope Specula. There are three essential things which require to be kept prominent ly in view to insure success in grinding mirrors either by hand or by a machine The first is that in grinding a true spherical surface must be got Sir Howard Grubb states in one of his articles that a true spherical surface is only got by chance . Get Price.

How to Grind a Telescope Mirror in 10 Easy Steps – Starry Nova

05.10.2021The telescope mirror is round in shape, and you will need to cut off the four square corners into a perfectly circular piece of glass. That should get you a glass blank with a ratio of 16:60 slides and a flat surface of at most 1:8. You will then need to contrive a method to grind the empty glass flat and round.

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making a tool for grinding a telescope mirror

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GRINDING A TELESCOPE REFLECTOR WITH TOOL

Grinding telescope reflectors of 15-inch diameter and over makes it necessary to employ a motor-driven turntable. Small mirrors are generally ground and polished by rotating the tool, fastened to the turntable, and working the mirror blank by hand either in straight or in circular strokes over the tool. In this case the overhang of the mirror tends to gradually cut down