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Mirror Grinding Describes

Joy of Mirror Making: Rough Grinding BBAstroDesigns

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.

Mirror Grinding Machine Design appelhuis.nl

Mirror grinding mainly depends on the precision of the machine tool cutting and grinding amount and wheel selection and dressing This paper mainly studies the MG1432 highprecision universal cylindrical grinder exploring the impact on the workpiece roughness through selection and design of various process parameters in grinding such as changing work table speed in dressing the grinding.

Mirror grinding scope making

A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank, but in my opinion, annealed plate glass is better for this first, "learn and practice" mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical (visible at

Fast Mirror Grinding & Polishing The ATMs Workshop

Fast Mirror Grinding and Polishing Miscellaneous Tips and Techniques . John D. Upton November 15, 2001 (Updated July 15, 2002) Many ATMs, by their very nature, are experimenters. This article discusses some of the odd techniques I have used in grinding and polishing mirrors.

Mirror Grinding Tool for a 22" f/4.0 Telescope Mirror

11-02-2014· Gordon Waite describes the mirror grinding tool that he used to grind a pair of 22" f/4.0 mirrors for the Binoscope project. The tool is made from dental pla...

Mirror Grinding Take A Class Or DIY? ATM, Optics and

11-05-2017· Page 1 of 3 Mirror Grinding Take A Class Or DIY? posted in ATM, Optics and DIY Forum: Ive been interested in grinding/polishing my own Newt mirror for a long time but dont know how to get started. As a beginner, would you recommend attending a workshop or class or is it possible to make a good mirror using other learning resources such as books and online videos?

Mirror Grinding Machine Hackaday

26-09-2006· Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built this mirror grinding machine from scratch.

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 sagitta.; You have a way to measure sagitta.; You have an appropriate size mirror blank, you have selected a surface to grind, and you have beveled the edge.

Mirror-o-Matic mirror making machine ATM pages of

Mirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.

Mirror grinding scope making

A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank, but in my opinion, annealed plate glass is better for this first, "learn and practice" mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical (visible at

Mirror grinding Hacker News

The center of the mirror is the most likely to be contacted by any motion, so it is abraded more frequently and becomes the deepest point, while the edges are worn less. The distribution between "less" and "more" is spherical. I can at least understand the process of grinding or lapping a surface flat. Here are a couple examples:

Joy of Mirror Making: Fine Grinding BBAstroDesigns

For large thin mirrors, say 12 inches [30cm] or greater and 1.5 inches [4cm] or thinner, the mirror back must be ground flat, or at least regular in shape before beginning fine grinding the mirror's face. Cast a tool specifically for the mirror's back, and grind with 220 grit, inspecting for low unground spots. Grind until they disappear.

Mirror Grinding Tool for a 22" f/4.0 Telescope Mirror

11-02-2014· Gordon Waite describes the mirror grinding tool that he used to grind a pair of 22" f/4.0 mirrors for the Binoscope project. The tool is made from dental pla...

Fast Mirror Grinding & Polishing The ATMs Workshop

Fast Mirror Grinding and Polishing Miscellaneous Tips and Techniques . John D. Upton November 15, 2001 (Updated July 15, 2002) Many ATMs, by their very nature, are experimenters. This article discusses some of the odd techniques I have used in grinding and polishing mirrors.

(PDF) Grinding of aspherical SiC mirrors

This paper describes the methods using bonded cup wheels for grinding toroidal and cylindrical SiC mirrors with large curvature radii. Since the angle between the cutting direction of bonded

Mirror Grinding Machine Hackaday

26-09-2006· Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built this mirror grinding machine from scratch.

Mirror Grinding Machine YouTube

25-06-2013· Grinding a mirror with a hand drill Duration: 2:00. Bruce Rout 3,151 views. 2:00. Language: English Location: United States Restricted Mode: Off History Help

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 sagitta.; You have a way to measure sagitta.; You have an appropriate size mirror blank, you have selected a surface to grind, and you have beveled the edge.

Build your own telescope part 1: The mirror Thomas

The problem with thin mirrors is that they flex more easily during grinding and polishing, making it hard to achieve the required surface precision. They also need a more complex mirror cell (additional support points). Plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass:

Mirror grinding Hacker News

The center of the mirror is the most likely to be contacted by any motion, so it is abraded more frequently and becomes the deepest point, while the edges are worn less. The distribution between "less" and "more" is spherical. I can at least understand the process of grinding or lapping a surface flat. Here are a couple examples:

Joy of Mirror Making: Fine Grinding BBAstroDesigns

For large thin mirrors, say 12 inches [30cm] or greater and 1.5 inches [4cm] or thinner, the mirror back must be ground flat, or at least regular in shape before beginning fine grinding the mirror's face. Cast a tool specifically for the mirror's back, and grind with 220 grit, inspecting for low unground spots. Grind until they disappear.

Mirror Surface Grinding of Silicon Wafers with

01-01-1990· This enables stable mirror surfaces to be ground on conventional grinding or cutting machines. The technique has started to take the place of lapping and polishing. This paper describes the characteristics of the new grinding technique and Its features, and also the advantages as applied to mirror surface grinding of silicon wafer's.

Mirror Grinding Previous landhotel-reiterhof.de

Mirror Grinding Previous. With 6 8 and 10 mirrors a decent rule of thumb is to budget an hour of grinding per grit size or more Otherwise the grinding sequence is the same including the regular rotation process B Here is one possible sequence of grits for an 8 or 10 mirror but there are other possibilities We have lots of different sizes of

Fast Mirror Grinding & Polishing The ATMs Workshop

Fast Mirror Grinding and Polishing Miscellaneous Tips and Techniques . John D. Upton November 15, 2001 (Updated July 15, 2002) Many ATMs, by their very nature, are experimenters. This article discusses some of the odd techniques I have used in grinding and polishing mirrors.

(PDF) Grinding of aspherical SiC mirrors

This paper describes the methods using bonded cup wheels for grinding toroidal and cylindrical SiC mirrors with large curvature radii. Since the angle between the cutting direction of bonded

Ed Grinds a Mirror scopereviews

The Grinding Guru takes a few strokes on my mirror "It's not bad," he says After a few hours of this, I get my first taste of what this work is all about. We take my mirror outside and reflect an image of the sun onto a piece of paper. I see a white round disc with clearly-imaged clouds rapidly moving across the

Mirror Grinding Machine Plans Recreatie Makelaar

Mirror grinding scope making. 2007-2-13A good starter size is the 150 mm 6 mirror. A 200mm 8 will also work. Most ATM books and websites recommend a Pyrex mirror blank, but in my opinion, annealed plate glass is better for this first, learn and practice mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex

Newport Glass Works, LTD. Grinding, Polishing and

Placing the mirror face up and grinding with a moderate "W" stroke will also move the curve toward the edge, and tends to produce a more spherical surface. Leaving the mirror grossly hyperbolic will make fine grinding difficult. Fine Grinding . We've all heard stories about fine grinding taking hundreds of

Build your own telescope part 1: The mirror Thomas

The problem with thin mirrors is that they flex more easily during grinding and polishing, making it hard to achieve the required surface precision. They also need a more complex mirror cell (additional support points). Plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass:

Mirror grinding Hacker News

The center of the mirror is the most likely to be contacted by any motion, so it is abraded more frequently and becomes the deepest point, while the edges are worn less. The distribution between "less" and "more" is spherical. I can at least understand the process of grinding or lapping a surface flat. Here are a couple examples:

Joy of Mirror Making: Fine Grinding BBAstroDesigns

For large thin mirrors, say 12 inches [30cm] or greater and 1.5 inches [4cm] or thinner, the mirror back must be ground flat, or at least regular in shape before beginning fine grinding the mirror's face. Cast a tool specifically for the mirror's back, and grind with 220 grit, inspecting for low unground spots. Grind until they disappear.

Mirror Grinding Previous landhotel-reiterhof.de

Mirror Grinding Previous. With 6 8 and 10 mirrors a decent rule of thumb is to budget an hour of grinding per grit size or more Otherwise the grinding sequence is the same including the regular rotation process B Here is one possible sequence of grits for an 8 or 10 mirror but there are other possibilities We have lots of different sizes of

Fast Mirror Grinding & Polishing The ATMs Workshop

Fast Mirror Grinding and Polishing Miscellaneous Tips and Techniques . John D. Upton November 15, 2001 (Updated July 15, 2002) Many ATMs, by their very nature, are experimenters. This article discusses some of the odd techniques I have used in grinding and polishing mirrors.

(PDF) Grinding of aspherical SiC mirrors

This paper describes the methods using bonded cup wheels for grinding toroidal and cylindrical SiC mirrors with large curvature radii. Since the angle between the cutting direction of bonded

Ed Grinds a Mirror scopereviews

The Grinding Guru takes a few strokes on my mirror "It's not bad," he says After a few hours of this, I get my first taste of what this work is all about. We take my mirror outside and reflect an image of the sun onto a piece of paper. I see a white round disc with clearly-imaged clouds rapidly moving across the

Mirror grinding Astronomy, Telescope, Diy telescope

Oct 13, 2018 telescope making, mirror grinding, homemade tripod, eyepieces, astronomy

Newport Glass Works, LTD. Grinding, Polishing and

Placing the mirror face up and grinding with a moderate "W" stroke will also move the curve toward the edge, and tends to produce a more spherical surface. Leaving the mirror grossly hyperbolic will make fine grinding difficult. Fine Grinding . We've all heard stories about fine grinding taking hundreds of

Mirror Grinding Machine For duosavar.nl

Mirror Grinding Machine » Leonardo Da Vinci's . Mirror Grinding Machine Leonardo’s Mirror Grinding Machine. leonardo miror grinding machine. The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all

Ultra-precision grinding ScienceDirect

01-01-2010· In ultra-precision grinding the application of grooved grinding wheels is mainly surface finishing, wafer grinding, thinning and mirror grinding with cup wheels. 4.2.4. Dicing blades. Dicing blades with thickness of 10 μm–1 mm are used for precision cut-off grinding.