rough grinding atm

  • Metallographic Grinder/Polisher Machines — Mager Scientific

    Browse our collection of metallographic grinder/polisher machines by ATM and you will find features like manual semi-automatic and fully-automatic versions 8"12" diameter discs polishing

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  • Stellafane ATM Grits Polish Pitch

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  • rough grinding machine needdadaloft

    Stellafane ATM Rough Grinding This page describes the rough grinding process. Before You Start. Use this checklist to make sure you are ready to start rough grinding You have selected a mirror diameter and focal ratio and have This page describes the rough grinding

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  • WotLK Blacksmithing 1-450 World of Warcraft Pro

    You use 380 copper bars for that 50 points. A much cheaper alternative is to make Rough Grinding Stone up until skill 65 (it turns Green at 65 and is yellow up until then) at which point you can make Coarse Sharpening Stone to 75 and Coarse Grinding Stone to 95. This should easily be doable with 60 rough stone and 80 coarse stone.

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  • Rough Grinding EdgesATM Optics and DIY ForumCloudy

    Jul 05 2015 · Rough Grinding Edgesposted in ATM Optics and DIY Forum I am trying to correct a deep sagitta on a 6 blank and have hit a snag. At first things were going in the right direction and I was able to bring it from 0.076 down to where it is now at 0.057. After ten wets with #80 grit this morning my sagitta is still at 0.057 with no change.

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  • Mel Bartels Amateur Telescope MakingBBAstroDesigns

    I shared my Sketchup model of my grinding machine and created a webpage with images and notes. I added a W stroke to my pitch lap calculator. A faint and pretty field of IFN (Integrated Flux Nebula) sketch stretching from the orange star Theta Herculis to another orange star Kappa Lyrae with my 6

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  • Chipped my 8" blankATM Optics and DIY ForumCloudy

    Dec 24 2015 · Page 1 of 2Chipped my 8" blankposted in ATM Optics and DIY Forum During rough grinding of an 8 f6 mirror blank I caused an inch long chip on the edge which is about 3mm (1/8) deep. The blank is about 1 3/4 thick so it should be possible to grind it away but I was wondering which would be the most efficient method I have been working with a tile tool of the same diameter as the

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  • rough grinding

    Rough grinding Article about rough grinding by The Free Ideal for edge grinding as well as weld-seam dressing the heavy duty construction of the CC-GRIND SOLID even makes them suitable for very rough grinding applications but they are not recommended for circumferential grinding such as on root-pass welds in pipeline construction.

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  • Rough Grinding Leaves Smooth Edgean Astronomy Net ATM

    Re Rough grinding leaves smooth edgebobmaySeptember 6 199905 06 UTC. Re Rough grinding leaves smooth edgeJohn Suback on June 13 1999) that seemJune 13 199900 00 UTC. Re Rough grinding

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  • Rough GrindingFine Grinding Telescope Building

    I built a "grinding board." It raises the grinding level seven inches above the table top for the sake of my back. I made it out of particle board scrap. I found a 17" round of pine at Home Depot for 4. The disk sits on three furniture slides hammered into the particle board box.

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  • Mirror-Making WorkshopTexas Star Party

    Mirror-Making Workshop. This workshop is no longer active but watch for announcement in future for our next workshop. Let us know you are interested by submitting your request.. This year can be your opportunity to make your own mirror during TSP

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  • Ironforge BreastplateItemWorld of Warcraft

    Got this when I was only lvl 13 and held onto it since it was on AH for only a 25s BO. Ive got it now and from what Im seeing on the AH currently its the best armor Im gonna have till about lvl 20 or so. Im lvl 15 atm. If you see it on AH for a BO of upto 40s give or take grab it

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  • Newport Glass Works LTD. Grinding Polishing and Figuring

    Find something that can act as a gauge is a drill bit). Check the progress of rough grinding by slipping the gauge under a straightedge placed across your mirror. Rough grinding usually produces a grossly hyperbolic curve. Toward the end of rough grinding start using shorter strokes to produce a smoother more spherical curve.

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  • Stellafane ATM Main Page

    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

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  • Mirror-Making WorkshopTexas Star Party

    Our Amateur-Telescope-Making (ATM) team will help you by supplying their expert guidance mirror-making stands and testing equipment. Located inside the Lodge building you ll have a protected environment to grind polish and test your mirror. See photos from the 2017 and 2016 Mirror-Making Workshops (sorry no photos for 2018)

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  • Joy of Mirror Making IntroductionBBAstroDesigns

    Rough Grinding. Unless the mirror comes pre-generated the initial curve will have to be ground into the mirror. A ring tool of half the diameter of the mirror used on top of the mirror s flat face with the coarsest grit will rapidly grind a spherical curve into the mirror. Grinding a 6 inch 15cm mirror to F/2.8 using a ring tool. Mirror

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  • rough grinding 20

    Stellafane ATM Rough Grinding. Starting from a rough glass blank you can obtain an almost perfect parabola with surface errors in the range of 20 to 60 nm And this only by pushing a piece of glass by hand Let s break down the process into 5 steps Rough grinding

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  • Polishing And Grinding

    Polishing and Grinding Handler MFG Red Wing International Polishing and Lapping Machines Grinding and Buffing Grinding and Polishing Guide Buehler Polishing and Grinding AMECO USA Grinding and Polishing ILO Encyclopaedia Metallographic Polishing and Grinding Kemet Grinding And Polishing Knowledge. Grinding and Polishing ASM International What is the difference between polishing and grinding

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  • Atm Mirror Grinding Machineboekhandeldekorf

    Stellafane ATM Fine Grinding. Mirror makers who use grinding machines tend to use fewer grits with bigger jumps in sizes Starting Grit Size is the polishing compound of choice for most ATM s today It works fast and is easy to use with little mess and is the compound supplied with most commercially available mirror kits polish and pitch necessary for a small

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  • Stellafane ATM Mirror Making Myths

    As we explain in our mirror making demonstrations at the Stellafane Convention the basic mirror making process involves grinding the mirror blank into a sphere with desired radius of curvature for the target focal length. We then polish this sphere smooth and then slightly alter it into a parabolic curve. Back to the ATM

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  • Mirror grindingscope making

    A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank but in my opinion annealed plate glass is better for this first

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  • Mirror-Making WorkshopTexas Star Party

    Mirror-Making Workshop. This workshop is no longer active but watch for announcement in future for our next workshop. Let us know you are interested by submitting your request.. This year can be your opportunity to make your own mirror

    Get Price
  • Stellafane ATM Mirror Making Myths

    As we explain in our mirror making demonstrations at the Stellafane Convention the basic mirror making process involves grinding the mirror blank into a sphere with desired radius of curvature for the target focal length. We then polish this sphere smooth and then slightly alter it into a parabolic curve. Back to the ATM Index Page.

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  • Fast Mirror Grinding and PolishingThe ATM s Workshop

    Nov 15 2001 · Fast Mirror Grinding and Polishing Miscellaneous Tips and Techniques . John D. Upton Rough grinding operations are most effective when the coarse grit rolls between the tool and the glass causing a fracturing of the surface. Polishing pads applied to a 9 inch grinding tool. Another local ATM

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  • Build your own telescope part 1 The mirrorThomas

    The goal here is to remove the rough surface left during fine grinding and obtain a smooth reflective surface. During this step we ll switch from mechanical grinding (silicon carbide and aluminium oxide) to chemical grinding

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  • Metallographic Grinder/Polisher Machines — Mager Scientific

    Browse our collection of metallographic grinder/polisher machines by ATM and you will find features like manual semi-automatic and fully-automatic versions 8"12" diameter discs polishing heads with variable speed and single vs. central pressure. These grinder/polishers are

    Get Price
  • rough grinding 20

    Stellafane ATM Rough Grinding. Starting from a rough glass blank you can obtain an almost perfect parabola with surface errors in the range of 20 to 60 nm And this only by pushing a piece of glass by hand Let s break down the process into 5 steps Rough grinding This step is about making one side of the glass concave It will give your mirror its overall focal ratio

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  • Dressing And Trueing NORITAKE CO. LIMITED

    For rough grinding a depth of cut radius can be set to about 40 μm which partially breaks down the bond bridge widening the grain spacing and greatly increasing the amount of material removed. On the other hand the total cut depth can change the wear and clogging of the grain.

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  • Mirror grinding machine-runoutATM Optics and DIY Forum

    Feb 21 2015 · Page 1 of 2Mirror grinding machine-runoutposted in ATM Optics and DIY Forum I am in the process of making a fixed post mirror grinding machine big enough for a 20 inch mirror. 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

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  • Polishing And Grinding

    Polishing and Grinding Handler MFG Red Wing International Polishing and Lapping Machines Grinding and Buffing Grinding and Polishing Guide Buehler Polishing and Grinding AMECO USA Grinding and Polishing ILO Encyclopaedia Metallographic Polishing and Grinding Kemet Grinding And Polishing Knowledge. Grinding and Polishing ASM International What is the difference between polishing and grinding

    Get Price
  • jeffbaldwin

    Our next ATM session will be Saturday January 25 th from 10AM until 2PM. We meet at Baldwin s Shop at 684 Pioneer Avenue in Lathrop CA. My phone is (209) 594-1894. Please enjoy the individual links. This site is a work in progress so check back once in a while to see if things have changed.

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  • rough grinding machine needdadaloft

    Stellafane ATM Rough Grinding This page describes the rough grinding process. Before You Start. Use this checklist to make sure you are ready to start rough grinding You have selected a mirror diameter and focal ratio and have This page describes the rough grinding process.

    Get Price
  • Mirror Grinding Kitsdevogelvriendennederweert

    Joy of Mirror Making Rough Grinding BBAstroDesigns. 31 rows· Here is a 25 inch 635cm mirror being rough ground followed by a beautiful grinding stand . MIRROR DIAMETER 2.5 3 3.5 40.1000.0830.07260.1500.1250.10780.2010.1670.143100.2510.2090.179See all 31 rows on bbastrodesigns Telescope Making Supplies willbell

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  • Making a Telescope MirrorRough GrindingYouTube

    Apr 27 2020 · I ve decided to grind a mirror again for the first time in 3 years and document my progress as I go. It s going to be a 6" f/2.8 for a super wide field field with my 21mm Ethos and coma corrector

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  • Mel Bartels Amateur Telescope MakingBBAstroDesigns

    I shared my Sketchup model of my grinding machine and created a webpage with images and notes. I added a W stroke to my pitch lap calculator. A faint and pretty field of IFN (Integrated Flux Nebula)

    Get Price

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