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Mar 06, 2006· Making a homemademirror grinding machine- posted inATM, Optics and DIY Forum: I want to make a motorizedmirrorgrinder , any good info on this , i have a couple geared motors , low speed high torque. One more question ...will 1 1/2 shaft …
Get PriceFeb 21, 2015· Page 1 of 2 -Mirror grinding machine-runout - posted inATM, Optics and DIY Forum: I am in the process of making a fixed postmirror grinding machine, big enough for a 20 inchmirror. I have now got the motor, pulleys, two shafts and turntable all together and working. The turntable rotates at around 25 rpm,which I think should be OK. If I put a dial indicator on the top of the table near the ...
Get PriceOct 03, 2006· The eccentric that controls the side to side motion turns at 11 RPM. I can adjust the length of the stroke and the side to side motion as well as the position of themirroron the tool. Now I know why mymachineis so slow to do its work. I really like the way themirroro matic works. I may have to rethink things a bit. Mark
Get PriceGrinding/ Polishing / EtchingGrindingand polishing is the final stage in the sample preparation process and consists of several steps. Each step uses finer abrasive than the previous one, the ultimate goal being to produce a deformation-free, scratch-free and highly reflective sample surface.
Get PriceMirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get intomirrormaking again, it quickly became clear to me that I would need to constructmachine, as handgrindingbigmirrorsis not something very beneficial for the hands of …
Get PriceDec 07, 2009· Page 1 of 5 -new grinding machine and 23,5 mirrorproject - posted inATM, Optics and DIY Forum: Hello folks!I have been anATMsince 1992 and would like to share you some videos and pics in order to pay tribute to allATMcolleagues who have been sharing their knowledge publicly for common benefit. I try to get thismirrorready before the next summer.
Get PriceMirror grinding machine construction logI started thinking about building my ownmirror grinding machineseveral years ago. Having been on theATMlist now since almost the beginning of it here on the web, I had lots of of inspiration reading of others projects and viewing their webpages
Get PriceGrinding/ Polishing / EtchingGrindingand polishing is the final stage in the sample preparation process and consists of several steps. Each step uses finer abrasive than the previous one, the ultimate goal being to produce a deformation-free, scratch-free and highly reflective sample surface.
Get PriceThe 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. Atelescope mirroris arguably the most accurate surface made by human ormachine. Amazingly you can grind amirrorby hand and make atelescopewith simple hand tools.
Get PriceMel Bartels, a well respected west coast amateur, recommends on his Large, ThinMirror Grindingweb page starting with something between 30 and 60grit, and then 120, 220, 500 (=25 micron) and finishing with 9 micron. This is just a 5gritsequence, as opposed to 8 to 10 for the more traditional sequences usually recommended for novices.
Get PriceWith theMirroron top, the tool on the bottom, and coarse grit in between, we startgrindingwith themirroroverhanging the tool. We rub the center ofmirroragainst the edge of the tool, and this wears a depression in the center of themirror(the edge of the tool wears down also, so that the tool becomes convex (a "hill" in the center) and ...
Get PricePlease consult our list ofATMSuppliers for ideas about where to purchase these items. Topics on this page:MirrorBlanks,Grinding& Polishing Tools, Grits & Pitch, Storage Containers,GrindingStands, and Miscellaneous Items. 6" & 8" PyrexMirrorBlanks Patterns on surfaces and edges are mold marks, splotch on 6" is agrindingmark by the ...
Get PriceRobert A. Cox, then Co-editor of the Gleanings forATM’s column, proposed that the test be called the Mobsby test. Willmann-Bell is pleased to offer precision inverse gratings at reasonable prices so that you can make that perfectmirror.
Get PriceDon't confuse lower case r (mirrorradius) with upper case R (Radius of Curvature) which is twice F (Focal Length). Calculating Sagitta. Before you startgrinding, you should have decided on yourmirror'sdesired focal length. The two most common beginners'mirrors, the 6" f/8 and 8" f/6, both have 48" focal lengths.
Get PriceMyMirror Grinding Machine. For a long time I've wanted to build amachineforgrindingtelescopemirrors. 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. Most of them came from industrial junk yards.
Get Price1. Clean: Make sure your plaster disk is clean and dry.If you are using a glass substrate or tile tool, clean the surface with turpentine. 2. Build a Dam: Using 2" wide masking tape, build a dam at least 3/4" high around the edge of the disk to hold the pitch in when you pour it. Leave a …
Get PriceATM Mirror Grinding MachineMark II (under construction) to Part 2 Well, the Mark I with automotive type wiper motors (12V DC) didn't work, so something else was required. Since EBay offers a lot of material that is suitable and available at reasonable prices, I …
Get PriceGrinding Machine forLarge TelescopeMirrorsI designed and built agrinding machine for mirrorsup to 42 inches [1.1m] in diameter. By slipping on and off a couple of belts, themachinecan quickly be reconfigured for spinning work or for stroking work.
Get PriceMar 27, 2018· FastMirror Grindingand Polishing . Many ATMs, by their very nature, are experimenters. This article discusses some of the odd techniques I have used ingrindingand polishingmirrors. Some were successful, others were tried and discarded for one reason or another.
Get PriceNewgrinding machineThe newgrinding machineis being used to re-make the old TRO 30 inchmirrorand the three 20 inchmirrors. It will be capable of making a …Mirror grinding machineconstruction log – JamesCrombie.com page1
Get PriceElgin-Waineomachines: . This is the most common type ofmachineat 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 work.
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Get PriceGrinding Machines Mirror-o-matic Tom Waineo's DesktopGrinding/PolishingMachineKen Lilja'sGrinding Machine... Testing amirrorat anATMsession. Galaxy NGC 891 by Ernie Rossi. Allen Malsbury and his 16" Dobsonian Telescope. The Solar Chromosphere by Dave Britz. Upcoming Events.
Get PriceI finally decided it was time to build amachineto help me grind the edges of the blanks true and round. This is my home-built edgegrinding machineforgrindingdown my home-castmirrorblanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescopemirrorblank that I made myself.
Get PriceMirror-o-Maticmirrormakingmachine-ATMpages of ...Mirror-O-Maticgrinding machine. When I decided in 2009 after a ten-year break to get intomirrormaking again, it quickly became clear to me that I would need to constructmachine, as handgrindingbigmirrorsis not something very beneficial for the hands of a musician.
Get PriceMirror-o-Maticmirrormakingmachine-ATMpages . 2018-5-16Mirror-O-Maticgrinding machine. When I decided in 2009 after a ten-year break to get intomirrormaking again, it quickly became clear to me that I would need to constructmachine, as handgrindingbigmirrorsis not something very beneficial for the hands of a musician.
Get Price29/09/2010Mirror Grinding Machine- posted inATM, Optics and DIY Forum: I have some interest in building agrinding machinefor possible up to an 18mirror, but something that will also do a 6 or 8mirror. 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 ...
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