rough grinding atm

Stellafane Atm Fine Grinding

Stellafane ATM: Polishing For rough grinding a 6" mirror, about 1/2 teaspoon of grit is used per wet. With finer grits, proportionately less grit is used per wet. Grits in the25 micron range are often premixed with water to form a slurry, and water and grit are squirted ...

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Rough Grinding Edges

 · Rough Grinding Edges - posted in ATM, Optics and DIY Forum: I am trying to correct a deep sagitta on a 6 blank, and have hit a snag. At first, things were going in the right direction, and I was able to bring it from 0.076 down to where it is now at 0.057. After ten ...

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Stellafane ATM: Materials & Tools

The Tools: Grinding & Polishing You will need two tools: A hard tool for rough and fine grinding, and a soft tool, or pitch lap, for polishing and figuring. Traditionally, the pitch lap was made on top of the grinding tool. We recommend using plaster disks for tool

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telescope mirror grinding machines

Rough Grinding a 20" Quartz Telescope Mirror on the Fixed ... 7/3/2010 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 abrasiv...

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ATM.Belgium

StevickPaul grinding 3 mirrors with carbo #120 - Duration: 2 minutes, 25 seconds. 51 views 4 months ago 0:28 P1100017 ... Hohner270C rough grinding PLA comb reedsides 12 25 - …

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ATM.Belgium

StevickPaul grinding 3 mirrors with carbo #120 - Duration: 2 minutes, 25 seconds. 34 views 1 month ago 0:28 P1100017 ... Hohner270C rough grinding PLA comb reedsides 12 25 - Duration: 18 seconds ...

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Table of Contents

iv Contents 3.4 Important Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 3.4.1 The Resolving Power of an Instrument ...

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Metallographic Grinder/Polisher Machines

ATM The Qpol 250 A1-ECO (Saphir 250 A1-ECO) is a single-wheel grinding and polishing machine for working wheels Ø 200/250 mm which is conveniently operated by a 4.3" color touch screen. Entire preparation methods may be edited, stored, and ...

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Stellafane ATM Main Page

ATM Web Pages Hundreds of links to all aspects of telescope making on the internet. ATM Material Suppliers US suppliers of Mirror Blanks, Grinding & Polishing Supplies, and Telescope Making Supplies. Astronomy Clubs Many can offer help with your project.

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Stellafane ATM: Mirror Making Overview

The purpose of fine grinding is to smooth the surface generated by rough grinding and to get "good contact": that is, grind smooth matching spherical surfaces on the mirror blank and tool. Smaller and smaller sizes of silicon carbide grit is used in the first stages of fine grinding, and then a switch is made to even smaller and finer grades of Aluminum Oxide grit.

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ATM

ATM (Amateur Telescope Making) My brother, Jerry Wright, is a amateur telescope maker. This ATM section is totally his. ( -- Contact Jerry Wright -- ) 22" f/3 Mirror Project by Jerry Wright Play Video Clip: Rough grinding the 22" mirror on the John Wikswo ...

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Fast Mirror Grinding & Polishing

Rough grinding operations are most effective when the coarse grit rolls between the tool and the glass causing a fracturing of the surface. My grinding wheel method kept the grit from easily rolling under the rough textured tool.

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