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Homemade Telescope Making

The mirror or tool was then carefully placed on top of the tool or mirror and grinding started ie pushing the glass disk on top back and forth The procedure was quite similar to grinding a smaller mirror except that the disks are heavier...

Mirror Grinding Machine

Aug 05 2009 0183 32 Grinding a 25-Inch F3 Telescope Mirror Thinning and Flattening the Back - Duration My Zeiss grinding and polishing machine - Duration 9 40 Riccardo Spada 102 252 views...

Document sans nom

Elgin-Waineo machines This is the most common type of machine at the moment in industry as well as with amateurs chiefly on the American continent see figure F The main difference from the...

Mirror Grinding Machine Crusher Mills Cone Crusher Jaw

Building a Waineo type grinding machine One of the projects that has been on my someday list was a rebuild of a lens/mirror grinding machine I built a Hindle type machine...

jeffbaldwinorg

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...

Stellafane ATM Mirror Making Overview

Mirror Grinding at the Spring 1998 Stellafane Mirror Workshop in the McGregor Observatory Rough Grinding The purpose of rough grinding is to start to cut a spherical concave surface into the mirror blank For a 6 mirror with a 48 focal length the depth of the curve is 0047 A full sized tool is rubbed against the mirror blank with a wet...

Leonardo Da Vinci s mirror making machines

221 221 221 221 221 221 221 221 221 221 221 In his Codice Atlantico Leonardo offers two of sketches of mirror making machin 221 One machine is designed for grinding concave mirrors of small focal length 221 The other machine a much larger piece to implement grinds mirrors of large focal lengths 221 Though Leonardo da Vinci creates sketches of mirror grinding...

Stellafane ATM Main Page

Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20 180 s and 30 180 s Many amateur astronomers still choose to fabricate their own instruments for the pride of accomplishment the gaining of knowledge and the insurance of quality...

Telescope Making Supplies

Throughout the grinding and final lapping stages the objective has been to reduce pits and scratches to the smallest possible size However no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first-class telescope objective Different techniques are...

grinding / polishing machine for telescope mirrors

Sep 29 2014 0183 32 Mechanical assembly is complete The machine could start grinding now I still need to build the electronics and then there s painting and finishing...

Diy mirror grinding aspherical telescopes

OP is specifically asking about grinding/polishing/figuring the segments of a segmented mirror which is a far more complex process than a normal parabolic mirror that ATMs make for both figuring the mirrors themselves as well as the engineering challenges of positioning the mirror...

Making a homemade mirror grinding machine

Mar 06 2006 0183 32 Making a homemade mirror grinding machine - posted in ATM Optics and DIY Forum I want to make a motorized mirror grinder any good info on this i have a couple geared motors low speed high torque One more question will 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount Thank you John...

telescope mirror grinding / polishing machine with

Feb 15 2016 0183 32 The machine is shown grinding a 300 mm mirror How to build a tachometer florinmyiporg/blog/making-tachometer-grinding-polishing-machine-telescope-...

Grinding Machine for Large Telescope Mirrors

Grinding machine for mirrors up to 42 inches 11m in diameter Can be configured for spin or stroke work Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches 11m in diameter...

China Grinding Mirror Grinding Mirror Manufacturers

Silver Mirror Bathroom Mirror Silver Coated Mirror Grinding Machine Polishing Machine Surface Grinding Machine More View List View Gallery View 17 575 products found from 549 Grinding Mirror manufacturers suppliers 2mm 3mm 4mm 5mm 6mm 8mm Edge Grinding Float Glass Mirror Manufacturer FOB Price...

Mirror grinding

Draw a grid on the mirror surface with a permanent marker...

Ritchey Mirror Grinding Machine Motor National Air and

The original grinding machine was used under the sponsorship of Hale to grind a 60-inch mirror initially intended for the Yerkes Observatory The grinding machine was moved to Pasadena in 1904 to complete work on the mirror at some point it was transferred to the California Institute of Technology...

Document sans nom

As often in sciences and technology Leonardo da Vinci was a pioneer creating machines for the production of optical devic Indeed between 1513 and 1517 he imagined machines to grind and polish telescope mirrors...

Telescope Mirror Blanks / TelescopeMirrorBlanksCom

Telescope Mirror Blanks Providing telescope mirror blanks and kits to telescope makers Mirror blanks are individually tested for internal strain Plastic protractor inserted under a 6 inch mirror blank during a stress test to illustrate what stress would look like - if there were any present...

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...

Machine grinding a 25 telescope mirror

Nov 16 2012 0183 32 Grinding 500 grit on a 25 f/30 meniscus mirror Tool is a 19 glass tiled stone tool with about a 3 overhang and about 37 pounds of weight...

Panasonic HDC

May 01 2010 0183 32 just a quick vid of my home made mirror grinding machine...

Leonardo Da Vinci s mirror making machines

One machine is designed for grinding concave mirrors of small focal length The other machine a much larger piece to implement grinds mirrors of large focal lengths Though Leonardo da Vinci creates sketches of mirror grinding one crucial and logical question to ask is whether he used such mirrors...

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...

Mirror Grinding Machine Hackaday

Sep 26 2006 0183 32 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...

Glass and Mirror Grinding

C R Laurence is the world leader wholesale distributor to the Glazing Industrial Construction Architectural Hardware and Automotive Industries supplying railing windscreen standoffs and other...

Mirror grinding

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 mirrorIt 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...

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 ground into the mirror face using a grinding tool The curve is pre-generated for you...

Telescope Making Supplies

Throughout the grinding and final lapping stages the objective has been to reduce pits and scratches to the smallest possible size However no amount of grinding can produce a surface smooth enough or...

How mirror is made

Mirrors on the edge of a grinding plate or evaporator chamber may not have the same surface or coating as those in the center of the apparatus If there is a wide range of metal thicknesses or surface flatnesses in a single batch of mirrors the process must be adjusted to improve uniformity...