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Designing - Mirror Grinding Machine

Designing the base box was a little easier. Starting with the original M-o-M 20 dimension, I just needed to make sure the pulleys could be lined up and have clearance for the pulleys and belts. Of course you also have to keep in mind that the powerhead is going to

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telescope mirror grinding / polishing machine with ...

Feb 15, 2016  The machine is shown grinding a 300 mm mirror.How to build a tachometer: florin.myip/blog/making-tachometer-grinding-polishing-machine-telescope-m...

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Mirror grinding Diy telescope, Refracting telescope ...

Grinding a 25-Inch F3 Telescope Mirror: Thinning and Flattening the Back Gordon started with a 2" thick telescope mirror that weighed about 70 pounds. By thinning the blank, he's lightened the mirror

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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. Most of them came from industrial junk yards.

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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 ...

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Joy of Mirror Making: Rough Grinding - BBAstroDesigns

31 行  Rough Grinding The first milestone is putting a curve into the mirror face. The curve's depth

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Telescope mirror grinding - YouTube

Mar 24, 2016  Here, we show how we are grinding the back of a mirror flat, using the 'fixed post grinding', method

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Designing - Mirror Grinding Machine

Designing the base box was a little easier. Starting with the original M-o-M 20 dimension, I just needed to make sure the pulleys could be lined up and have clearance for the pulleys and belts. Of course you also have to keep in mind that the powerhead is going to

More

Mirror grinding Diy telescope, Refracting telescope ...

Dec 2, 2013 - telescope making, mirror grinding, homemade tripod, eyepieces, astronomy

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Mirror Grinding Process Parameter Selection and Design ...

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 high-precision 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 ...

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Mirror Grinding Machine » Leonardo Da Vinci's Inventions

The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it. This machine was most likely designed by Leonardo while he was either investigating the different ways that light reflected off things or maybe he was planning on ...

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Mirror-o-Matic mirror making machine - ATM pages of ...

Mirror-O-Matic grinding machine. ... The M-o-M is a marvellous machine due to its simplicity and yet refined design. It is extremely flexible accommodating mirror sizes from 4 inch up to 20 inch (with slight modifications) and can be used for all three steps necessary in producing a mirror. That is you can use it to grind, polish and figure ...

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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. A bowl which rotated was fitted to the spindle.

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Build your own telescope part 1: The mirror – Thomas ...

Rough grinding. This step is about making one side of the glass concave. It will give your mirror its overall focal ratio. If you make the centre deep, you will end up with a fast telescope (e.g. F/D = 4) well suited for deep sky observations. On the opposite, a shallow mirror (e.g. F/D = 8) will be performing very well on planets and the moon.

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lenses - Lens and Mirror Grinding - Physics Stack Exchange

I am actually grinding my own lenses ( I am trying). Now I have been continuously using the chordal stroke for atleast 3 hours but i am unable to see any depreasion be it convex or conacve on the tool or the mirror respectively. I have been applying the chordal stroke properly using 60 grit carborundum.

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Telescope Mirror Blanks / TelescopeMirrorBlanks.Com ...

* Thin plate glass mirror blanks are lighter than standard mirror blanks, which allows you more flexibility in designing your telescope tube assembly and mount. * When grinding a telescope mirror, you will find that plate glass takes less time to grind and polish than a mirror made from borosilicate glass.

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Mel Bartels' Amateur Telescope Making

The I.A.U. named asteroid 17823 Bartels discovered 1998 by J.M.Roe in recognition for my contributions to amateur astronomy. Making is the Key to Knowing. A telescope mirror is arguably the most accurate surface made by human or machine. Amazingly you can grind a mirror by hand and make a telescope with simple hand tools.

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Grind and Polish a Dobsonian/Newtonian Telescope Mirror ...

When designing a telescope of this style, there is a very, very handy tool called Newt for the Web. You can put in your mirror diameters for the one we'll be making (primary mirror) and the secondary mirror, as well as the focal length of the primary mirror, and it will give you a lot of other parameters for your telescope that are necessary to ...

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tut44 Making A Mirror Grinding Tool - Asterism

a design named for its inventor, Sir Isaac Newton. The heart of the Newtonian telescope is its primary mirror. Most Newtonian primary mirrors have either a spherical or a parabolic shaped concave face. Unlike most other mirrors in your home, the mirror coating of a Newtonian mirror is actually applied to the front face of the glass, not the back.

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Leonardo Da Vinci's mirror making machines

ÝÝÝÝÝÝÝÝÝÝÝ In his Codice Atlantico, Leonardo offers two of sketches of mirror making machines.Ý One machine is designed for grinding concave mirrors of small focal length.Ý The other machine, a much larger piece to implement, grinds mirrors of large focal lengths.Ý Though Leonardo da Vinci creates sketches of mirror grinding, one ...

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Grinding Machine for Large Telescope Mirrors

I designed and built a grinding machine for mirrors up to 42 inches [1.1m] in diameter. By slipping on and off a couple of belts, the machine can quickly be reconfigured for spinning work or for stroking work. The machine can also work smaller mirrors if the drip pan

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tut44 Making A Mirror Grinding Tool - Asterism

a design named for its inventor, Sir Isaac Newton. The heart of the Newtonian telescope is its primary mirror. Most Newtonian primary mirrors have either a spherical or a parabolic shaped concave face. Unlike most other mirrors in your home, the mirror coating of a Newtonian mirror is actually applied to the front face of the glass, not the back.

More

Mirror Grinding Process Parameter Selection and Design ...

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 high-precision 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 ...

More

Mirror Grinding Machine » Leonardo Da Vinci's Inventions

The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it. This machine was most likely designed by Leonardo while he was either investigating the different ways that light reflected off things or maybe he was planning on ...

More

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. A bowl which rotated was fitted to the spindle.

More

Grind and Polish a Dobsonian/Newtonian Telescope Mirror ...

When designing a telescope of this style, there is a very, very handy tool called Newt for the Web. You can put in your mirror diameters for the one we'll be making (primary mirror) and the secondary mirror, as well as the focal length of the primary mirror, and it will give you a lot of other parameters for your telescope that are necessary to ...

More

How to Build a Telescope - IUCAA Scipop

Grinding the primary mirror. Polishing and testing the primary mirror. Designing and fabricating the telescope tube, mirror cell and diagonal suport. Designing and fabricating the telescope mount. Assembling, collimating and testing the telescope.

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Build your own telescope part 1: The mirror – Thomas ...

Rough grinding. This step is about making one side of the glass concave. It will give your mirror its overall focal ratio. If you make the centre deep, you will end up with a fast telescope (e.g. F/D = 4) well suited for deep sky observations. On the opposite, a shallow mirror (e.g. F/D = 8) will be performing very well on planets and the moon.

More

Telescope Mirror Blanks / TelescopeMirrorBlanks.Com ...

* Thin plate glass mirror blanks are lighter than standard mirror blanks, which allows you more flexibility in designing your telescope tube assembly and mount. * When grinding a telescope mirror, you will find that plate glass takes less time to grind and polish than a mirror made from borosilicate glass.

More

lenses - Lens and Mirror Grinding - Physics Stack Exchange

I am actually grinding my own lenses ( I am trying). Now I have been continuously using the chordal stroke for atleast 3 hours but i am unable to see any depreasion be it convex or conacve on the tool or the mirror respectively. I have been applying the chordal stroke properly using 60 grit carborundum.

More

Dick Parker's Telescope Mirror Workshop: Cassegrain ...

The design must also account for back focus distance or the distance from the primary mirror to the focus plane behind the telescope to accommodate the focuser, star diagonal, and eyepiece. Considering the primary mirror focal length, the shortest, or fastest focal ratio generally accomplishable by an advanced ATM is f/4.

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Mike's Telescope Workshop - mdpub

Casting a light weight telescope mirror (all steps in the process) In this video I show how I designed, cast, slumped and coldworked a light-weight telescope mirror blank prototype. The blank is 10 inches in diameter, but only weighs 4 lbs 13 oz. It has a ribbed back design for rigidity, and is pre-slumped to f/4.9.

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Grandin Road®: Home Décor Official Grandin Road

Discover and shop affordable, designer-inspired home decor, indoor and outdoor furniture, holiday and Halloween decorations, wall art, bar stools, area rugs, benches, bedding and more.

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Dick Parker's Telescope Mirror Workshop: Refractor ...

One design is a cemented pair and the other design is an airspaced Fraunhoffer. I used the airspaced Fraunhoffer to avoid cementing complications then had the design modified. Design I wanted a design that would be excellent optically, but be accomplishable in our workshop. ... The process is exactly like grinding a mirror at this stage. The ...

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Telescope Making Links - Designs and Techniques STAR ...

Johan Vanbeselaeres Mirror Cell Design Help ... Berthold Hamburger's Tile Tool Page (mirror) Grinding with Washers Grinding Large Thin Mirrors Part I Grinding,Polishing and Figuring Large Thin Mirrors - Part 2 - Polishing Astronomy, telescope making ,mirror grinding and testing

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