Mel Bartels' Amateur Telescope Making, The IAU named asteroid 17823 Bartels discovered 1998 by JMRoe 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 toolsMike's Telescope Workshop, I finally decided it was time to build a machine to help me grind the edges of the blanks true and round This is my home-built edge grinding machine for grinding down my home-cast mirror blanks Click to see the whole project This is a 125 inch diameter, 15 inch thick, light-weight honeycomb-back telescope mirror blank that I made myselfBENTELER Glass Processing Equipment, BENTELER Glass Processing Equipment develops and produces machinery and equipment for processing glass used in architectural, automotive and technical applications With over 3,500 successfully completed projects in over 60 countries, we support our customers with innovative solutions and are a reliable and trusted partnerCustom Engineering, turbine spot face grinding machine One machine with small and large machining range options covering a wide range of couplings Precision mounting collets, fine grinding wheel adjustment and simplicity of machine design provides a versatile, quick to set up and highly accurate grinding solutionStellafane ATM: Materials & Tools, 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 sleev ,.
grinding / polishing machine for telescope mirrors ,, Sep 29, 2014· Mechanical assembly is complete The machine could start grinding now I still need to build the electronics, and then there's painting and finishingGrinding Machine for Large Telescope Mirrors, I designed and built a grinding machine for mirrors up to 42 inches [11m] 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 is moved to the fast shaft on the side of the machineStellafane ATM Main Page, Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s Many amateur astronomers still choose to fabricate their own instruments, for the pride of accomplishment, the gaining of knowledge and the insurance of qualityLeonardo, The Computer-Aided Design ("CAD") files and all associated content posted to this website are created, uploaded, managed and owned by third party users Each CAD and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or real-world item, product, or good it may purport to portrayChina Polishing Machine, Polishing Machine Manufacturers ,, China Polishing Machine manufacturers - Select 2021 high quality Polishing Machine products in best price from certified Chinese Grinding Machine manufacturers, Grinding Equipment suppliers, wholesalers and factory on Made-in-China.
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 ,Bench Grinder Polisher Best 10 Workbench Mountable Tools, : Metabo Small Bench Grinding Machine The DS small bench grinding machine sharpener with 240 Volts is a modern tool featuring a wheel size of 150 mm It is small sized and compact, perfect for modest grinding and even sharpening us It employs a high powered, upkeep free induction electric motor Features A Wheel Size Of 150 mmzeiss grinding machine design, 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, strokegenerally, 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 ,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 previous model lies in its single off-set arm (1) that oscillates around an axis (2) and is connected to a crank (4) and spindle (3) system which makes it workMachine grinding a 25" telescope mirror ,, Nov 16, 2012· 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.
Telescope Making Links, 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 Large Thin Mirror Making by Mel Bartels Grinding Machines Mirror-o-matic Tom Waineo's Desktop Grinding/Polishing ,Mirror grinding machine construction log, I also made a short animation of the grinding movement in AVI(17mb) or as a animated GIF(2mb) GRINDING LOG-----July 22, 2003 Machine settings - Platter set at 15rpm - Overarm speed - 6 strokes per min (fixed), Stroke+/- 2375" aprox 10 lbs weight on mirrorDesign and Development of Rice Milling and Grinding ,, Design and Development of Rice Milling and Grinding Machine Brian Kristoffer M Caringal, Zyrom S Dela Rosa, Kyle Vergel R Maan, Nestor C Camello Mechanical Engineering Department, Lyceum of the Philippines University, Batangas City, Philippines ABSTRACTMirror, 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 opticsThe Design, 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.
Bench Grinders & Buffers, Wet/dry grinding machines are used for blade sharpening Wheel Diameter: Wheel diameter refers to the diameter of the grinding wheel that is compatible with the machine Wheel Width: Wheel width refers to the width of the grinding wheel that is compatible with the machine,Astro, 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" Fig3, Page 163, "Amateur Telescope Making" Book 1 A bowl which rotated was fitted to the spindle I also built another machine ,Ritchey Mirror Grinding Machine | National Air and Space ,, George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes ObservatoryMaking a Mirror grinding & Polishing machine, 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 105 (or max 12)Design of an ultraprecision computerized numerical control ,, Because the tradition grinding is not suitable for large aspheric mirror surface, in this paper, a grate parallel grinding in 3-axis and an on-machine measurement system are applied.
telescope mirror grinding / polishing machine with ,, Feb 15, 2016· The machine is shown grinding a 300 mm mirrorHow to build a tachometer: florinmyiporg/blog/making-tachometer-grinding-polishing-machine-telescope-m,Stellafane ATM: Measuring Sagitta, Don't confuse lower case r (mirror radius) with upper case R (Radius of Curvature) which is twice F (Focal Length) Calculating Sagitta Before you start grinding, you should have decided on your mirror's desired focal length The two most common beginners' mirrors, the ,Manufacturing Technology for Optics, Ceramics & Metals ,, CNC Optical Grinding PRO 80 GTS High Precision Lens Grinder: 5-80 mm Optics; PRO 160 GTS High Precision Lens Grinder: 10-160 mm Optics; eSX 150 5-Axis lens Grinding machine: 5-150 mm Optics; eSX 300 5-Axis lens Grinding machine: 5-300 mm Optics; eSX 400 5-Axis Lens Grinding Machine: 5-400 mm Optics; SXL 500 5-Axis Lens Grinding machine: 10-500 ,Telescope Mirror Making Machine, May 09, 2013· A sample --and quite simple-- video of Vitastra's mirror making machine This is a full-custom design first inspired on the polishing machines designed by ,Dongguan Yonglida Machinery Co, Ltd, Dongguan Yonglida Machinery Co, Ltd specializes in design,production and sale of metal surface finishing machines,polishing machines,abrasive belt machines,sandblasting machines and other equipments For meeting the needs of different parts processing,we have developed a full range of types of machines,from manual to automatic model-based.