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joy of mirror making rough grinding

Joy of Mirror Making: Introduction - BBAstroDesigns

Joy of Mirror Making: Rough Grinding - BBAstroDesigns

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Dobsonian Mount | Telpe Building - WordPress

Dobsonian Mount. In making the mount, I by and large followed the instructions on the Stellafane site. Where I diverged most was in the so-called tube cradle, which I replaced with my adjustable curtain-track trunnion system. To build the mount I purchased (my major wood outlay) a piece of ¾" red oak plywood, which because of a ...

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mirror grinding tool - zeskalnihovrchu.cz

mirror grinding tool. T11:06:21+00:00. tut44 Making A Mirror Grinding Tool Asterism. Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telpe" Most amateur astronomers believe, "I can buy a better telpe than I can build" Neither is actually correct For many decades now, amateur …

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How I built an edge grinder for telpe mirror blanks.

A course diamond grinding drum is installed on the grinder. It will be used to take off the rough edges, and make blanks truly round. Then a switch to a finer grinding drum will clean up the edge. The edge grinder is done! Here I am doing a dry run to make sure everything works. A 13.5 diameter wood disk has been installed on the grinder.

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Joy of Mirror Making: Rough Grinding | Diy telpe ...

Joy of Mirror Making: Rough Grinding. Rough grinding a telpe mirror. E. Edward. Telpe Making. Stargazing Telpe. Diy Telpe. Radio Astronomy. Space And Astronomy. Science For Kids. Science And Nature. Life Science. Cosmos. Curiosity Rover. The Simplest Way To Prepare A Diy Telpe Most Inexpensively.

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How to build a mold for a stone grinding wheel

Joy of Mirror Making: Rough Grinding. The curve is created by slumping the blank in a kiln over a mold. ... Motorized grinding wheel on the end of along boom that is anchored that is moved back and forth across the mirror face ... By …

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Grinding Glass From Rough Grind To Final Polish

How To Polish Rough Glass Edges Our Pastimes. Mix 100grit silicon carbide abrasive with water to make a paste that will begin smoothing the rough surface insert your grinding wheel into the grinder wet your wheel and apply a bit of this mix to the surface hold your glass to the wheel to grind and polish it progress to 140grit and then medium grits of 270 and 300.

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Column: Minnie Miñoso's Hall of Fame call long overdue ...

Column: Minnie Miñoso's Hall of Fame election was long overdue — but it hurts knowing the Chicago White Sox legend was deprived of experiencing the joy of the honor. Thank you for supporting ...

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Winter skincare tips Sara Ali Khan swears by

Winter is everyone's favourite season for getting together with friends and family, eating warm, toasty treats while basking in the sun, and, most importantly, taking advantage of the seasonal weather change. However, despite all of the joy, festivities, and excitement, the harsh, dry weather may leave skin looking drab and dry. In such a situation, …

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Making a Tile Tool for Mirror Grinding (in 150 seconds ...

The condensed process of making a tile tool that will be used to grind my 8.5 inch telpe mirror. Making a mould around the Pyrex disc, mixing and pouring...

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Stellafane ATM:Mirror Making Myths

Making a Mirror takes Hundreds of Hours of Work. Not True! A 6" or 8" mirror should take about 40 to 80 hours of effort. While this is a non-trivial amount of time, the mirror can be completed in a few months, and certainly within a year. Most people work one to three hours a day on their mirror about one or two times a week.

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Parabolizing a 20" Mirror, Part 2: Deepening ... - Pinterest

Joy of Mirror Making: Rough Grinding. Rough grinding a telpe mirror. Gerry Germishuizen. Cnc projects. Diy Telpe. Vertical Vegetable Gardens. Star Party. Thing 1 Thing 2. Science And Technology. Good Things. Marketing. Mirror. Youtube. 12 inch f4.9 Telpe Mirror Part 1.

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Summierian II, een 100mm f/4 Babydobson | Roelblog | Telop

Joy of Mirror Making: Rough Grinding. Rough grinding a telpe mirror. Gerry Germishuizen. Cnc projects. Ruimte En Astronomie. Wetenschap En Natuur. Kosmos. Kennis. Instrumenten. Zelfgemaakt. Ruimte. Cultuur. Bricolage. The Simplest Way To Prepare A Diy Telpe Most Inexpensively.

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Grinding mirrors by machine? - ATM, Optics and DIY Forum ...

Grinding mirrors by machine? - posted in ATM, Optics and DIY Forum: Has any1 made a machine to ground mirrors. I would rather make a machine capable of grinding than do it by hand. It would probably take me less time as well. Is there any technique to it or is it just making a bit of glass a concave shape so that its focal length is 1200mm or watever.

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Joy of Mirror Making: Rough Grinding - BBAstroDesigns

31 The Joy of Mirror Making Mel Bartels Rough Grinding The first milestone is putting a curve into the mirror face. The curve's depth dictates the mirror's focal length. The curve should be spherical. Creating the curve can be done by several methods: The curve is ground into the mirror face using a grinding tool. The curve is pre-generated for you.

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TELPE MIRROR MAKING HOW TO PART 1: Rough …

Welcome to my channel - in this video, we will begin to make a telpe mirror from scratch! I'll be showing you the basics of telpe mirror grinding!Her...

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Grinding,Polishing and Figuring - Part 2 - NEWPORT GLASS

Polishing is the stage of mirror making that requires the most physical work, even more than rough grinding. What probably concerns you most is how much time it will take you to polish the mirror. Using the techniques described below, a 16" …

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Parabolizing 2 | Telpe Building

Parabolizing 2. 2014 October 01. The question is whether to continue figuring the mirror or to be happy with what I have. A strategy: to do a star test. In September we attempted to get a tumble-down jig up to speed. Even though we got the pieces of the jig together, the streetlights around the community center reflect too brightly off the ...

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Joy of Mirror Making: Polishing - BBAstroDesigns

The Joy of Mirror Making Mel Bartels Polishing Polishing a mirror is one of the great joys you will experience as a maker and builder. 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 ...

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Ask HN: What things has tech made worse in your life ...

Ask HN: What things has tech made worse in your life? Growing up I always enjoyed tech and was excited for all the problems tech can solve and all the improvements it can make and has made in my life. However, recently I had to check-in into a doctors office using a 3rd party software and the process is incredibly worse for the patient.

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Joy of Mirror Making: Polishing - BBAstroDesigns

The Joy of Mirror Making Mel Bartels Polishing Polishing a mirror is one of the great joys you will experience as a maker and builder. 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!

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Stellafane ATM: Rough Grinding

This page describes the rough grinding process. Before You Start. Use this checklist to make sure you are ready to start rough grinding: You have selected a mirror diameter and focal ratio, and have use these to calculate a target …

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Joy of Mirror Making: Fine Grinding - BBAstroDesigns

The Joy of Mirror Making Mel Bartels Fine Grinding The goals of fine grinding are to prepare the curved mirror face so that it is ready for polishing and …

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47 Telpe ideas in 2021 | telpe, telpes, diy ...

Joy of Mirror Making: Rough Grinding. Diy Telpe. Sugar Free Hard Candy. Cotton Candy Party. Homemade Sweets. Portable Toilet. Recycled Glass. Items. Decorative Bowls. Astronomy. Casting a Large, Light-Weight Telpe Mirror From Recycled Glass. Telpe Craft. Radio Astronomy. Curiosity Rover.

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Telpe Building | Pushing Glass and Sawing Wood

From mid-November 2012 to mid-April 2013 I constructed a telpe from scratch … from grinding the mirror to building the tube. This site was initially conceived for family and friends to keep track of my progress. Early on I began to think the site could be helpful (and encouraging) for aspiring hobbyists. The telpe was a six-inch f/7.73…

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ATM Resources – Astro Khan Telpe Making

Can do mirrors upto 20 inch size. Blue Cotter, Roorkee, Uttarakhand (UK). Contact person: Mr. Dilshad Ali, +91-9917776288. Can do mirrors upto 12 inch size. ATM Knowledge Web. Stellafane Amateur Telpe Making Main Page; The ATMs' workshop by John D. Upton; Mel Bartels' Amateur Telpe Making and The Joy of Mirror Making

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Stellafane Links Page

Joy of Mirror Making Rough Grinding by Mel; Joy of Mirror Making Fine Grinding by Mel; Large Thin Mirror Grinding; Making a 110mm f/7 by Arjan; Making a 150mm f/4 by Arjan; Making a 250mm f/6.4 by Arjan; Mirror Grinding Tutorial by Berislav; Mirror Making Video by Armin (German) Mixing Suspension-Treated Abrasives; Mother of All Sagitta Charts ...

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From Ring Tool to Tile Tool | Telpe Building

From Ring Tool to Tile Tool. After four hours of using the ring tool with 60 grit, I sufficiently reached the goal-spheroid of FL 78″ that we decided to move from ring tool to tile tool. (1) we traced the circumference of the mirror over a mat of …

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Ed Grinds a Mirror - scopereviews

-Ed 5/29/00) Chapter One: Rough Grinding, May 28, 2000 I arrived on a cool Sunday afternoon in May, and started grinding with five other club members in a local barn. Right away, there was pressure on me; I had missed the first two-hour grinding session and everyone was well ahead of me on the coarse (80) grit.

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Pin on Telpe Making & Amateur Astronomy

Joy of Mirror Making: Rough Grinding. Rough grinding a telpe mirror. M. Michael Kapp. Astronomy. Telpe Craft. Hubble Space Telpe. Astronomical Observatory. Astronomical Telpe. Cosmos. Radio Astronomy. Curiosity Rover. Joy of Mirror Making: Introduction. Introduction to grinding polishing and parabolizing a telpe mirror. S ...

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Joy of Mirror Making: Rough Grinding | Diy telpe ...

Grinding my first 6" f/8 Telpe Mirror This video shows a few initial stages of making a primary mirror for a 6" f/8 telpe. I'm a newbie so bear with me in …

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Rough Grinding an 8.5 inch Telpe Mirror - YouTube

The first phase of rough grinding my 8.5 inch Pyrex disc into a telpe mirror. Including beveling the edges, measuring sagita (central depth), and grindin...

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Hogging out - Telpe Building

Hogging out. The strategy here is to use a "ring tool" to "hog out" the spheroidal curve roughly. I've decided to grind to f/6.25 for a focal length of 78 inches. The ring tool: a 6″ steel disk about 1/2″ thick. Folks on campus helped me with this.

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48 Inch Round Glass Table and Similar Products and ...

Amazon: 48 glass table top round trend MCPRST Mirror 10mm Tempered Round Glass Dining Table with Solid Wood Base, Round Cocktail Table for 2 or 4 or 6Person, Modern Round Glass Kitchen Table for Home Dining Room (W 48 x L 48 x H 30.94 inch) $419.99. $419.

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The Mirror: Grinding, Polishing, Figuring | Telpe Building

The Mirror: Grinding, Polishing, Figuring. In regular visits through the winter I began the grinding, polishing, and figuring the mirror blank to astronomical standards. After forty-five hours of my "pushing glass," the experts declared the mirror finished once it reached 1/6 wavelength through Foucault testing.

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Mirror-o-Matic

Mirror-o-Matic Operations Manual Revised 2 May, 2002. Mirror-o-Matic will take most of the manual labor (some call this drudgery, some call it joy) out of mirror making.Because the mirror is rotated on a turntable, it will have a very nice figure of revolution. The chance of producing a severely astigmatic mirror is greatly reduced.

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Grinding (abrasive cutting) - Wikipedia

Grinding is a type of abrasive machining process which uses grinding wheel as cutting tool.. A wide variety of machines are used for grinding, best classified as portable or staionary: Portable power tools such as angle grinders, die grinders and cut-off saws; Stationary power tools such as bench grinders and cut-off saws; Stationary hydro-or hand-powered sharpening stones

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