Large Thin Mirror Making by Mel Bartels. Grinding Machines. Mirror-o-matic. Tom Waineo's Desktop Grinding/Polishing Machine. Ken Lilja's Grinding Machine. Grinding Machine. Figuring. Figuring a Paraboidal mirror by thermal predistortion. Optical Testing.
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Page 1 of 5 - Making a Mirror grinding & Polishing machine - posted in ATM, Optics and DIY Forum: Hello, I am on the half of the way to make a mirror grinding machine inspired by original M-O-M design. I made the pulley arrangement such a way that, both the turn table & eccentric spins at 50 RPM fixed. I wont go for making mirror bigger that 10.5 (or max 12).
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Mirror Grinding_grinding mill&grinding machine&grinder. My Mirror Grinding Machine … I quickly discovered that changing the original plans was not easy, so I hacked out a 3-D drawing program to help me visualize it.
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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. I also built another machine of the same type.
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Abstract A three-axis CNC grinding machine tool for the ultra-precision mirror surface grinding of advanced materials such as ceramics and other hard and brittle materials has been designed. The grinding machine is composed of the air spindle, a high-damping resin concrete bed, and a three-axis CNC controller with high resolution AC servo motors.
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Re: Building a fixed post mirror grinding machine. I I had a nice piece of 3/4" stainless dowel that was begging to be used. So I bought a cheap pillow block to provide the locator for the metal dowel, and then drilled the overarm to fit. These pillow blocks are $8 and come complete with a locking collar - great deal.
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Grinding Machines • Hand grinding takes several days • Grinding machines designed to create exact same pattern • Can adjust stroke, positions etc – auto rotates mirror and tool • Simple machines cost few hundred
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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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To all whom it may concern Be it known that I, THOMAS A. Corny, a citizen of the United States, and a resident of Arequipa, Peru, have invented a new and Improved Parabolic-Mirror-Grinding Machine, of which the'following is a full, clear, and exact description.
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The Design . I began by measuring the sizes of what I already had, a 1/3 hp 1750 rpm electric motor and a 25:1 geared speed reducer. Then I took a rough cut at the MoM-20 H-frame and placed the motor and gear box on it. Lining up the pulleys, drilling holes for ...
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Polishing Machine. 4" x 106". Seamers. Horizontal. Sander. Automatic. Machine. Grinding Hand Tools and Bits. Diamond Plated Router Bits and Diamond Abrasive Products.
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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 inventing a telescope or some other optical …
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The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. It embodies the "sub-diameter tool" design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by programmable rotating arms.
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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, …
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The machine is shown grinding a 300 mm mirror.How to build a tachometer:
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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 your optics.
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Products/Services for Parabolic Mirror Grinding Machines. Grinders and Grinding Machines - (987 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish. Devices can be pneumatically driven or powered by a combustion engine or electric motor.
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The GrabCAD Library offers millions of free CAD designs, CAD files, and 3D models. Join the GrabCAD Community today to gain access and download! Shop ... Leonardo-Mirror-Grinding-Machine Leonardo-Mirror-Grinding-Machine / Loading ... Base.stl. stl. May 11th, 2016 Gear1.stl. stl. May 11th, 2016 Gear2.stl. stl. May 11th, 2016 ...
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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 …
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Grinding a Mirror "For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is also true that if an amateur starts out to build a telescope just for fun he will find, before his labors are over, that he has become seriously interested in the wonderful mechanism of our universe.
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Longitudinal by advanced table hydraulic design, feed range from 0.3m/min to 25m/min, it provides easy operation and vibration-free reversing motion and controlled by the proximity sensor built-in design for safety. Cross and Longitudinal(618H) Cross feed driven by ball screw (618H). Longitudinal driven by hydraulic (618H). Base & slide ways
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Polishing or grinding as a machining process is used in various industries from small parts of precision instruments to large products such as an aircraft. Within metal architecture, polished or grinding finish has been selected for various places from curtain walls, interiors and exteriors, fittings, and monuments for its ability to accommodate various designs.
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A grinding machine relieves the labor, but is not necessary. ... analyzing mirror cell design to support thin mirrors. ... Your goal as a starting big mirror grinder is to successfully complete a mirror with a fine figure, not to push the envelope of what's possible. I suggest either a 16" to 20" pyrex fine annealed 2" blank, ...
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The Right Machine and Process for Mirror-Finish Carbide, Ceramic. One presentation at United Grinding's recent "Universe" event covered not only a machine of particular interest to toolmakers dealing with such materials, but also general information on what affects surface finish. Matt Danford. Senior Editor, Modern Machine Shop.
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I started this thread to record my building progress of a new mirror grinding and polishing machine. This machine will be capable of handling mirror sizes up to 22". I have decided that 22" is the absolute maximum otherwise becomes too cumbersome to move around. I have won 2 x 1/3 horse power single phase electric motors on eBay, at $45 each.
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