how to make a telescope mirror grinding machine

Dick Parker s Telescope Mirror Workshop Cassegrain, The Cassegrain Project The Cassegrain telescope is probably the first type telescope that the ATM would like to make after mastering the basic Newtonian telescope, The primary is a concave mirror and the secondary is convex and placed inside the primary focus, This optic is small enough that a lens grinding machine could …

Mirror grinding book recommendations Please

Hi folks . Its been ten years since I first read up on grinding mirrors then the idea got placed on the bucket list and shelved. I have been thinking about the idea quite a bit again over the last couple of years, and now my observatory is pretty much complete I think I'm ready to give mirror grinding a go I must say reading some of the Dob build threads on SGL have also …

Grind and Polish a Dobsonian/Newtonian …

Anyway, it's amazing the precision you can achieve simply with some glass, grit, pine pitch and a lot of work. I've heard that this is literally the highest amount of precision a human can achieve with simple hand tools! Just grinding the …

Joy of Mirror Making: Rough Grinding

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 …

Fast Mirror Grinding & Polishing - The ATMs …

The mirror ended up with a very smooth, zone free, nearly spherical figure ready for final figuring. Figure 1: Polishing pads applied to a 9 inch grinding tool. Another local ATM has also tried the polishing pads with abrasive and …

Mirror Grinding Machine

telescope mirror grinding machine based on Dennis Rech's M-o-M 20 . My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telescope mirrors. ... The overarm drive pin is attached to the tool …

Precision mirror grinding and machining of steel …

The use of ELID mirror grinding technology for precision machining of steel-bonded cemented carbides makes it easy to obtain low-roughness mirrors. I. The basic principle of ELID grinding technology On-line electrolytic …

Mirrors - using undersize tool - ATM, Optics and DIY …

Careful when first grinding with new layers of tiles. Some may be higher than others and after stroking past the edge of the mirror and then back might snag the edge. Step 1. Use short COC strokes that don't take the edge of the tool past the edge of the mirror for a while to wear down the highest tiles. Step 2.

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Grinding and Polishing Tools. Grinding Wheels . Grinding Wheels List; Ceramic Grain CX Wheel; Vitrified-bonded Wheel for Gear Grinding "Gear Ace" New Super-finishing Wheel "Keen Stone" Vitrified-Bonded Wheel for Precision …

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Wheel Dia., 7.5A Grinders Power Tools, 12000RPM No Load Speed, 1 Grinding Wheel, Grinder Tool for Grinding, Sanding, Wire Brushing or Abrasive Cutting-Off. $43.99 $ 43. 99. $10.00 coupon applied at checkout Save $10.00 with coupon. Get it as soon as Tue, Aug 23. FREE Shipping by Amazon.

Grinding and Polishing Tools | Product Information

Tools for grinding, polishing and machining various materials. Vitrified. Ceramic Grain CX Wheel. Vitrified-bonded Wheel for Gear Grinding "Gear Ace". New Super-finishing Wheel "Keen Stone". Vitrified-Bonded Wheel for Precision Grinding "LIFE KING". New Mirror Grinding Super-finishing Wheel "Mr. Neo Lapper". Resinoid.

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

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. ... Vasco Ronchi's books unrelated to mirror making, etc) - built tools. I love to create tools, between the tile tool, the pitch lap, the ...

Telescope Mirror Grinding Machines | Crusher Mills, Cone …

Panasonic HDC-SD60 Telescope mirror grinding machine, Grinding 10" pyrex blank for telescope mirror. Newport Glass Works, LTD. Grinding, Polishing and Figuring …. Grinding, Polishing and Figuring . Thin Telescope Mirrors . Abridged from an article appearing … are several ways to support the grinding and polishing machine ….

Ultra-precision grinding - ScienceDirect

A third type of micro-pencil grinding tool is CVD coated. Here a blank is coated with poly-crystalline diamond grinding layers. A minimum tool diameter of 50 μm has been achieved . Pencil grinding tools are often used to manufacture complex three-dimensional microstructures. Common applications are form grinding and jig grinding.

Telescope Mirror Grinding Machine - Crusher Mills

The 1.3m telescope mirror blank has been completed by Peter Wangsness and is now at JP Astrocraft in Charleston, … 1.3-m Mirror Grinding Machine … Mirror-O-Matic – Dr. Debug Grinding your own telescope mirror seemed like a cool idea until I did more research and discovered all the physical …

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Buy Mirror Grinding China Direct From Mirror Grinding Factories at Alibaba.com. Help Global Buyers Source China Easily.

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, …

mirror grinding machine - Alibaba

The mirror grinding machine boast of the latest inventions that redefine your glass processing, making it easy and timesaving. Manufactured using the utmost quality of materials and designs, these mirror grinding machine offer you a long lifespan and enhance your efficiency as they fit perfectly to your daily operations.

joy of mirror making rough grinding

The Shine G is a resinoid-bond wheel which consists of a diamond grain with a special low-elasticity resin, enabling excellent mirror surface grinding. Joy of Mirror Making: Rough Grinding - Rough grinding a telescope mirror. The Joy of Mirror Making Mel Bartels Rough Grinding The first milestone is putting a curve into the mirror face.

How to Grind a Telescope Mirror in 10 Easy Steps – Starry …

Obtain the right glass. Choose solid grinding tools. Choose the best position to work on mirrors by hand. Grind the back flat. Try and prevent astigmatism. After having the ground and face of the mirror flat through the 220, you are good to begin rough grinding the curve into the mirror. Do some fine grinding.

mirror grinding telescopemirror grinding tool

Jumping into Mirror Making Michael Mills. I have been preparing to grind my own primary mirror for a long time. I've collected many fine books on telescope making and mirror grinding, including Richard Berry's Build Your Own Telescope, Sam Brown's All About Telescopes, and Jean Texereau's How to Make a Telescope.I read through all of these books, …

Mirror Grinding Tool

After the generation, i poured a steel grinding tool and used 40 silicon carbide abrasive to get the mirror close to the target focal length. i ground with the steel tool through 60, 80, 120, 220 and 320 abrasives. at that point, i poured a …

Mirror grinding - scope making

The bevel is needed to prevent chipping of the disc edge while grinding. Use a tool sharpening stone, wet it with water, and grind at 45 degrees, around the disc, (red arrow) . A 2 mm bevel is enough ... It starts to look like a …

Mirror-grinding of single-crystal diamond substrates with …

High-efficiency mirror grinding of single-crystal diamond substrate was investigated. •. A rotary grinder with a #15000 diamond wheel was used for mirror grinding. •. A record high removal rate (0.04 μm/min) was achieved. •. The processed surface was ultrasmooth with ~0.1 nm average surface roughness. 1.

Which Style Grinding Machine For Telescope Mirror? (Best …

What is the most efficient method of grinding mirrors? Roughness in stroke numbers, tool rotation, and disc rotation are all important factors in good mirror grinding. Making a tile tool out of tiles that have been broken with a hammer can help to increase the unpredictability of the game:) Always work with water on your hands!

mirror grinding kit grind and polish telescope …

Telephone: +44 (0) 1268 728077. Stock Specification. All our Mirror Kits contain a Pilkington Float Glass mirror blank and Grinding Tool. These arefinished with fine ground edges. 180 grade first stage ginding powder. 400 grade ginding …

Joy of Mirror Making: Fine Grinding

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 …

Rough Grinding of a Telescope Mirror | Guy's Math

One way: do about 8 circular strokes. Then center the mirror on the tool. Turn the lower piece of glass to the left by about 15 degrees (1 hour on a normal clock face); then turn the upper piece of glass about 10 more degrees. Then grind away for 8 more circular strokes.

GRINDING OF TOOL STEEL - Uddeholm Global

results when grinding tool steel, it is necessary to choose the grinding wheel with care. In turn, choosing the right grinding wheel and grinding data requires an understanding of how a grinding wheel works. This brochure provides a quite detailed description of the make-up of the wheel, of how it works when grinding and of the parameters that

Buy mirror blanks for telescope making

12 Inch Mirror Blanks, 3/4" Thick: $69 + S&H (16); Shipping prices are to the USA - not shipping outside the US, sorry Combined shipping is possible - Write For a complete mirror making KIT, with all abrasives, polishing …

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" …