mirror grinding tool

San Francisco Sidewalk Astronomers Notes from John Dobson's

If you would like to grind your own telescope mirror, or build a telescope the Dobson way, If you grind focal length of mirror too short, reverse mirror and tool.

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Lens & Mirror Making • Best lenses and mirrors are both made by

Typical mirror want pyrex (eg BK7). • Then need a tool blank – poorer glass & softer glass. • Place mirror on top tool. • Now add grinding compound (grit) 

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A new grinding method for aspheric ceramic mirrors ScienceDirect

AEGM, which is used for grinding aspheric ceramic mirrors, increases both wheel life and grinding performance, and significantly decreases total production 

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Jan van Gastel Making a mirroromatic mirror making machine

Once I had seen a grinding machine, working at 380 Volts and weighting On the picture below the machine is fine grinding an 8 inch mirror with an 71% tool 

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tut44 Making A Mirror Grinding Tool Amateur Astronomers, Inc.

Making A Mirror Grinding Tool. By Allen Malsburry. The average person would never think, “I can make my own telescope.” Most amateur astronomers believe, 

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Jumping into Mirror Making, by Michael Mills

I've collected many fine books on telescope making and mirror grinding, we beveled the edges of our preground f/8 blanks and tools and started grinding.

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Fast Mirror Grinding & Polishing The ATMs Workshop

Nov 15, 2001 As the mirror and tool were slowly pulverized by the grinding process, the iron in the resulting grinding "mud" instantly oxidized. This rust 

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22 inch update, fine grinding don wright's astrophotography

I want to keep the cost of the mirror to a minimum, and running the electric space On April 30 2015 I started fine grinding by hand MOT on the 18.33" tile tool.

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Telescope Making Wikibooks, open books for an open world

I will grind and polish a shorter focal length mirror and a longer focal length mirror. .. To actually grind the mirror you will need a tool and some grit, as well as 

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Mirror Grinding Machine

telescope mirror grinding machine based on Dennis Rech's MoM 20. The overarm drive pin is attached to the tool with a 3/8" swivel foot and pitch.

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From Ring Tool to Tile Tool Telescope Building

Apr 7, 2015 The result is a grinding tool of the same diameter as the mirror the tiled side has the same curve as the mirror, and the topside is more or less 

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A history of polishing machines Astrosurf

Model of the machine imagined by Leonardo da Vinci to grind mirrors At the time, specific tools were invented to facilitate the work of opticians, in particular 

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the @stro pages telescope making making a tile tool

Sep 8, 1999 One of the items on the checklist is called a "tool". In mirror grinding and polishing we use a tool as the surface on which grinding compounds 

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Tool setting error compensation in large aspherical mirror grinding

Sep 29, 2017 Increasing competition and high accuracy make it necessary to optimize and evaluate the outcome of manufacturing processes. In tool grinding 

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Ed Grinds a Mirror Scopereviews

Oct 30, 2000 Introduction This summer (2000) I joined a mirrorgrinding class . I wrap my tool with 2" wide masking tape, making a small reservoir for the 

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Stellafane ATM Make a Tile Tool

We use tile tools in all our mirror courses at Stellafane. Alternative Don't worry if some epoxy gets on the surface of the tiles it will grind right off. If you are 

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Telescope Making Starhoo

With #60 carbo, tried grinding mirror with powerful chordal strokes. Good results. After 3 hours of grinding, tool is getting convex and mirror has 1/32 inch sagitta.

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Curve Generating

You are finished when the mirror is the correct depth and the mirror and tool At the end of a 2X6 arm the motor turns the diamond grinding wheel at 3500 RPM.

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MirrorMaking Workshop Texas Star Party

You should provide your own materials including mirror, mirror tool and pitch Set up & rough grinding includes Getting set up/overview, Making the Tile Tool, 

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Putting the Polish on EpicScale Telescope Mirrors Space.com

Jan 15, 2016 One of the biggest challenges is making a bigger mirror to collect the light. . it the right overall curvature and saves our having to grind out 14 tons of One essential feature of any polishing tool is that it match the shape of 

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Fast Mirror Grinding & Polishing The ATMs Workshop

Nov 15, 2001 As the mirror and tool were slowly pulverized by the grinding process, the iron in the resulting grinding "mud" instantly oxidized. This rust 

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Joy of Mirror Making Rough Grinding Mel Bartels

The curve is ground into the mirror face using a grinding tool. The curve is pregenerated for you. The curve is created by slumping the blank in a kiln over a 

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Joy of Mirror Making Rough Grinding Mel Bartels

The curve is ground into the mirror face using a grinding tool. The curve is pregenerated for you. The curve is created by slumping the blank in a kiln over a 

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mirror grinder page

I started thinking about building my own mirror grinding machine several years ago. Here are the clamps to possition the tool or mirror on the platter.

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