Lens & Mirror Making Best lenses and mirrors are both …

Lens & Mirror Making • Best lenses and mirrors are both made by grinding the surface • Start with a mirror or lens blank • For mirrors only surface needs to be good • Typical mirror want pyrex (eg BK7) • Then need a tool blank – poorer glass & softer glass • Place mirror on top tool

Joy of Mirror Making: Polishing - BBAstroDesigns

The Joy of Mirror Making Mel Bartels Polishing ... It's also arguably the most accurate surface made by man or machine. If the mirror is expanded to the size of a football field, then the mirror's surface will be smooth to 1/1000 inch or 1/30 millimeter! ... Here is a 25 inch mirror on top of the fine grinding …

Jan van Gastel: Making a mirror-o-matic mirror making machine

Grinding On the picture below the machine is fine grinding an 8 inch mirror with an 71% tool (143 mm diameter) and 9 micron aluminium oxyde. The bent lines on the mirror are the effect of the tool turning - with respect to the mirror - faster at the central part of the mirror as compared to the edge zones.

mirror making glass machines - alibaba.com

A wide variety of mirror making glass machines options are available to you, such as glass cutting machine, glass coating machine, and glass edging machine. You can also choose from free samples. There are 450 mirror making glass machines suppliers, mainly located in Asia.

Jeff Baldwin's machine

Fixed-post machine grinding is where the mirror is on a turntable rotating around 20 PRM [speeds vary], and a 75% tool is on top. They are already curve-generated. The tool is hanging over the mirror by 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed in this position.

Fixed post mirror grinder advice - DIY Astronomer ...

Nov 01, 2011· Basically there are two types of grinding/polishing machine. The 'traditional' type which involves the mirror rotating at a relatively slow speed, a few rpm for a big mirror (16-20 inches) with the tool moving across the mirror, from side to side, at a higher rpm depending on the size of the mirror and/or tool. ... Fixed post mirror grinder ...

m o m mirror grinding machine - psychminded.co.za

AstroTel 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 of the same type ...

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.

Large Homemade Telescope Making Project - Google Sites

Bill's Homemade Telescope Making Project This web page provides an overview of my large homemade telescope making project. ... Unfortunately, the cost of mirror grinding kits and pyrex blanks has increased significantly in recent years to the point where any savings from making a mirror versus buying one are minimal at best.

SkyBadger - Mirror Grinding Machine

The mirror machine came to me as a result of astronomical horse-trading, swapping a large GEM mount and a 8" Newtonian OTA for the machine as it was and a start kit consisting of two 6" blanks and the grit, rouge and pitch to manufacture a mirror. The grinding machine had been built to the design of the mirror-o-matic design of Dennis Rech ...

Document sans nom - Astrosurf - Astronomie

A history of polishing machines As often in sciences and technology, Leonardo da Vinci was a pioneer, creating machines for the production of optical devices. Indeed, between 1513 and 1517, he imagined machines to grind and polish telescope mirrors, which, at the time, were made of bronze.

Mirror Grinding Polishing - nocowaniepolanczyk.eu

Mirror-o-Matic mirror making machine - ATM pages of ... Mirror-O-Matic grinding machine. ... Polishing a 12" mirror with some added weight on the quill. Second image: Diamond generating a 14" blank with a diamond pellet tool. Support Online. tut43 Making A Mirror Polishing Tool - asterism.org.

Stellafane ATM: Materials & Tools

Materials & Tools Introduction. This page will describe the necessary materials and tools you will need to make a mirror. It will only list what we feel are the minimum equipment required; additional, optional equipment is described on other pages in this series, under the topic to which it applies. ... Mirror Blanks, Grinding & Polishing Tools ...

Newport Glass Works, LTD. Grinding, Polishing and Figuring ...

This is why you don't want to make mirrors to be worked on machines too thin. For 16" to 18" mirrors, 1.62" thick is the thinness I would recommend. There are several ways to support the mirror on a grinding and polishing machine turntable, but first make …

Mike Lockwood Telescope Making Mirror Making

Telescope Making *TELESCOPES PAGE* How I got started in ATM Optical Equipment Pitch tester, Strain testing setup, Mirror test stands, Spherometers, Slitless Foucault testers, Interference test setup, Small grinding machine, Large grinding machine Optical Articles, Tables, etc.

Mirror Grinding Machine Setup - tasleek.org

Telescope mirror grinding machine Mirror making and optical testing The images below show the completed grinding machine in Mirror Grinding Machine Setup ... Rough Grinding a 20" Quartz Telescope Mirror on the Fixed . This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning.

Joy of Mirror Making: Introduction - BBAstroDesigns

Stone tools go back 3.3 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.

Mirror grinding machine construction log - James Crombie

Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. Having been on the ATM list now since almost the beginning of it here on the web, I had lots of of inspiration reading of others projects and viewing their webpages

mirror grinding instruments - apgce.org

Telescope Mirror Grinding Machine Products Suppliers . Products/Services for Telescope Mirror Grinding Machine Grinders and Grinding Machines (992 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish.

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.