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Sep 30, 2015· 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.
Apr 29, 2010· Measuring the Radius on the 20" Mirror. DIY Spherometer, Part 1: The Build. DIY Spherometer, Part 2: Calibrating and Using the Instrument Recycling Pitch for Laps for the the 20" Quartz mirror. Pouring a 15" Pitch Lap. Channeling a 15" Pitch Lap. Fine Grinding a 20" Quartz Telescope Mirror. Rough Grinding on the Fixed-Post Mirror Grinding Machine
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.
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 the mounting bolts and making sure the belts would clear everything drove the design
Sep 29, 2010· Mirror Grinding Machine - posted in ATM, Optics and DIY Forum: I have some interest in building a grinding machine for possible up to an 18 mirror, but something that will also do a 6 or 8 mirror. I have plans for the Mir O Matic but would like to do something a bit more modern. I have some ideas about using a AC drive and a large aluminum disk for the turntable and have made a parts list …
Dec 29, 2008· zeiss grinding machine design - posted in ATM, Optics and DIY Forum: Zeiss type has the most flexible ability, it has three rotation shafts---mirror, offset, stroke.generally, two motors will be used. then bring me a question, which two shafts should be drove by one motor?there are different designs: in book advanced telescope making, offset shaft and mirror main shaft were combined, but …
US1171174A US86695214A US1914866952A US1171174A US 1171174 A US1171174 A US 1171174A US 86695214 A US86695214 A US 86695214A US 1914866952 A US1914866952 A US 1914866952A US 1171174 A US1171174 A US 1171174A Authority US United States Prior art keywords shaft tool slide parabolic axis Prior art date 1914-10-16 Legal status (The legal status is an assumption and is not a …
Topics on this page: Mirror Blanks, Grinding & Polishing Tools, Grits & Pitch, Storage Containers, Grinding Stands, and Miscellaneous Items. 6" & 8" Pyrex Mirror Blanks Patterns on surfaces and edges are mold marks, splotch on 6" is a grinding mark by the manufacturer. Two blanks are in their protective cardboard shipping sleeves. ...
Feb 15, 2016· The machine is shown grinding a 300 mm mirror.How to build a tachometer:
Nov 25, 2019· Once Hubble began returning images that were less clear than expected, NASA undertook an investigation to diagnose the problem. Ultimately the problem was traced to miscalibrated equipment during the mirror's manufacture. The result was a mirror with an aberration one-50th the thickness of a human hair, in the grinding of the mirror.
To meet this requirement Cranfield Precision Engineering Ltd. have designed and are at an advanced stage of manufacture of a large three axis CNC machine for grinding and in-situ metrology of optical elements. Machine capacity is 2.5 m × 2.5 m × 0.61 m resulting in a machine of overall dimensions 8 m × 6 m × 5 m and overall weight 130 tonnes.
Leonardo's Mirror Grinding Machine. 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 ...
Intrinsic Crystal Technology Co., Ltd. (ICC) Reflect Mirror, Znse Mirror, Optical Mirrors CO2 reflect mirror and focus lens is used together to change the direction of the laser path, making the laser machine's shape more casual, more applicable. Usually a complete beam path outside the laser tube requires three reflect mirror and a focus lens. Laser will loss when it travels, so the laser ...
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.
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.
Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.
Jul 24, 2021· D.R. Machine Tools is the professional Steel Polishing Machine Manufacturer in India. Founded in 2010, and we have been producing and supplying tools and machines such as steel polishing machine, tube polishing, rod polishing, pipe polishing, pipe notching, polishing accessories, flat surface polishing, buffing polishing, mirror polishing and grinding process machines for years and have sold ...
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.
In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse's design. Advances in Abrasive Technology XVI The superhard diamond grinding wheel with large-grit size plays an important role in precision mirror grinding …
Jan 01, 2011· The Design and Manufacture of a Large CNC Grinding Machine for Off-Axis Mirror Segments. Annals of CIRP, 38 (1) (1989), p. 529. Article Download PDF View Record in Scopus Google Scholar. D.J. Stephenson, J. Corbett, J. Hedge. Precision Grinding Using Tetraform C. STIM Manufacturing Engineering (5) (2003), pp. 30-34.
Jul 27, 2021· Making a telescope mirror. To start, a new mirror blank is "sanded" down to create a precise parabolic curve in a process called grinding. To do that, the blank is …
Mirror (8K) Polishing Machine Mirror Polishing Machine is used to polish Sheet or Plates of Stainless Steel up to Highly Reflective Mirror Effect. The surface receives a uniform and directionless gloss with a magnificent brilliance. After Grinded in Grinding Section, Sheets will feed into the polishing section.
The design has been worked down to the last bolt in detail as well as a 54 point mirror cell design based on PLOP analysis with a 1.5 inch thick mirror. ... Doing this with my new fixed post grinding machine built this summer. Work is progressing well, and very efficient. Started project in August 2013 and at this point I am ready to move on ...
Mirror Reflections is a molding knife design and manufacturing company. We produce some of the most beautiful quality molding knives, profile templates, and CAD (computer-aided design) drawings in the woodworking industry. Consider us as a reliable resource for superior quality cutters for the molder or shaper and acrylic templates for profile ...
May 23, 2015 - Fixed Post Mirror Grinding Table - designed with 123D Design. May 23, 2015 - Fixed Post Mirror Grinding Table - designed with 123D Design. Pinterest. Today. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Mar 16, 2015· 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).
Optical polishing services, CMP polishing, optical waveguide edge and optical angle polishing, wafer dicing and substrate dicing services, back grinding, flat lapping and CNC machining of all hard materials including Ceramic substrates, Quartz, Aluminum Nitride (AlN), Optical Glass, Sapphire windows, Silicon wafers and very thin lapped glass or optically polished substrates and windows.
In addition, a great deal of money will be saved: a finished 24" scope will set you back $7,000; grinding your own mirror and building the mount yourself will cost you $2,000. Amateurs have made mirrors up to 41" by hand. A grinding machine relieves the labor, but is not necessary. A 24" is the largest you can comfortably do solo.