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draper grinding machine
2006年12月12日· 12 subscribers 34K views 16 years ago This is a grinding machine for astronomical parabolic telescope mirrors The machine can handle primary mirrors up to 80 cm/315" AlmostHome built machine from Norman Meyer workshop If interested, I can share more information re: capacity, etcDraper Mirror Grinding Machine
mirror grinding machines ATM, Optics and DIY
2006年10月3日· You can find a couple of videos on Youtube Search draper + mirorgrinding + astronomy We straightforward copiedIn September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse's design Early experiments in casting and polishing a 15½‐in speculum metal mirrorDraper, Henry | SpringerLink
Looking for threads on mirror grinding machines Cloudy Nights
2022年10月25日· Looking for threads on mirror grinding machines posted in ATM, Optics and DIY Forum: I ran down a bunch of search results on this forum regarding building a mirror grinding machine and never found what I was looking for Even the mighty Google didnt produce much results that would allow me to compare the various kinds of home2006年9月26日· F/4 means the focal length of the mirror is four times the diameter – just like on any camera PS I have a mirroromatic grinding machine, they can be just as random as a human and don’t needMirror Grinding Machine | Hackaday
CNC Optical Grinding Machines | OptiPro
The SXL 500 is a 5Axis CNC bridge style optical grinding platform can generate precision optical surfaces up to 500mm, including spheres, aspheres, freeform optics, and more Learn More CNC Optical Grinding Machines: Improve the quality of your surfaces along with your bottom line by using grinding solutions that deliver accuracy and speedEurope, he began the construction of a Kosse machine for grinding and polishing a 15Jinch speculum A preliminary trial on a smaller mirror, 8 inches in diameter and 11 inches in focal length, having proved satisfactory, the large speculum was successfully cast on the 2d or 3d of November The casting turned out to be veryHENRY DRAPER National Academy of Sciences
Mirror Grinding Machine | Products & Suppliers | GlobalSpec
In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse’s design After experimenting with copper and tin alloys for the metal reflecting surface and developing his own steamdriven mirror grinding machine , this telescope was completed in 1839 CERAMIC ABSTRACTSMy Mirror Grinding Machine For a long time I've wanted to build a machine for grinding telescope mirrors Dennis Rech's MoM designs finally inspired me to just get up and do it Over the years, I'd been collecting motors, gear boxes, pulleys, etcMirror Grinding Machine
draper polishing machine manufacturers 15 meters and above
2008年2月1日· I made a machine to do my 36 inch f 35s It has a manual over arm and a powered table I do my grinding and polishing by spin grinding so the manual over arm is just used for correcting On the 75 I plan on the same setup but may end up with a powered over arm The shipping costs for a big machine might be more than the machine Contribute to crushers/china development by creating an account on GitHubchina/ draper design crushersmd at main ·
Answering 5 Honing FAQs | Modern Machine Shop
2020年4月30日· Other machining processes, such as grinding and boring, might fracture the metal’s subsurface to a depth of 0002 inch In addition, tool wear can cause workhardening of the bore surface during machining Honing is a gentler process, generating very little heat so as not to distort the bore 3 What types of surface finishes can honinggrinding operations ELZM during polishing process on Draper ELZM during testing, mounted to AOS support Polished the ELZM with a full sized tool for efficiency and measured using interferometer • The mirror was polished to “interferometric capture”, not to full surface requirements of future missions This was to conserve costLightweight ZERODUR®: Validation of mirror performance and mirror
How to Grind a Telescope Mirror in 10 Easy Steps – Starry Nova
2021年7月9日· Obtain the right glass Choose solid grinding tools Choose the best position to work on mirrors by hand Grind the back flat Try and prevent astigmatism After having the ground and face of the mirror flat through the 220, you are good to begin rough grinding the curve into the mirror Do some fine grindingLarge Thin Mirror Making by Mel Bartels Grinding Machines Mirroromatic Tom Waineo's Desktop Grinding/Polishing Machine Ken Lilja's Grinding Machine Grinding Machine Figuring Figuring a ParaboidalTelescope Making Links Designs and Techniques
Mirror Grinding Machine ATM, Optics and DIY
2010年9月29日· 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 82005年10月2日· MirroroMatic and fixed position tool grinding posted in ATM, Optics and DIY Forum: I plan on using a MirroroMatic type grinding machine soon The fixed position technique Mark Cowan uses is one I’m very interested in Mark has spoken about this to me and on this forum, as recently as today in the thread “Grinding myMirroroMatic and fixed position tool grinding Cloudy Nights
Document sans nom Astrosurf
Document sans nom The main types of machines They may be classified into three main groups : Draper/Hindletype machines : This is the mother of all machines Its principle seems to have been elaborated by Huygens, about 1738, and improved by Lord Rosse, and more recently by Henry Draper, an American astronomer2004年10月19日· We have a draper mirror grinding machine, so we can rotate the blanks while generating Back to top #2 Mike I Jones Mike I Jones Aurora Posts: 4,986; Joined: 02 Jul 2006; Posted 13 January 2007 09:41 AM I've generated hundreds of parts on a 24" Strasbaugh generator but have never built one myself Johnanyone made a initialcurve generator? Cloudy Nights
draper mirror grinding machine
Impact Crusher Unique structure, Energyefficient Impact crusher made in Kefid Machinery aMore CI5X Series Impact Crusher2019年8月19日· A few years ago, I was thinking about hand grinding a mirror I watched a YouTube video of John Dobson hand grinding a mirror I don’t really remember how big it was, but it was big Maybe 14” Maybe larger John was no youngster in this video and even though he is a master, he sure put a hellova lot of labor into that mirrorBuilding a fixed post mirror grinding machine
24" Mirror Grinding and Polishing Machine IceInSpace
2010年6月6日· Location: Melbourne Posts: 9 24" Mirror Grinding and Polishing Machine 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 moveGus Ti May 11th, 2016 LeonardoMirrorGrindingMachine Download files 74 Downloads 28 Likes 3 CommentsLeonardoMirrorGrindingMachine GrabCAD