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Mirror Grinding Machine
Very last knife edge readings for this mirror (I think). Here is the project file (source code). It was created using Microsofts VC++ ver 6. If you don't have at least that, this file probably won't be very useful. ParabProj.zip - About 170 kb. Tom Stokes 12/25/12
Build your own telescope part 1: The mirror – Thomas ...
Rough grinding. This step is about making one side of the glass concave. It will give your mirror its overall focal ratio. If you make the centre deep, you will end up with a fast telescope (e.g. F/D = 4) well suited for deep sky observations. On the …
Mirror grinding stand - Ross Sackett Amateur Telescope ...
the action of grinding on them to see what height works best for you. The top is 20" diameter 3/4" plywood. The top support is a 17 X 17" square of 3/4" plywood, with the corners clipped off to make an octagon. The truss consists of …
SkyBadger - Mirror Grinding Machine
The mirror machine came to me as a result of astronomical horse-trading, swapping a large GEM mount and a 8" Newtonian OTA for the machine as it was and a start kit consisting of two 6" blanks and the grit, rouge and pitch to …
Fast Mirror Grinding & Polishing - The ATMs Workshop
The mirror ended up with a very smooth, zone free, nearly spherical figure ready for final figuring. Figure 1: Polishing pads applied to a 9 inch grinding tool. Another local ATM has also tried the polishing pads with abrasive and …
Stellafane ATM: Mirror Making Overview
Mirror Grinding at the Spring 1998 Stellafane Mirror Workshop in the McGregor Observatory Rough Grinding. The purpose of rough grinding is to start to cut a spherical concave surface into the mirror blank. For a 6" mirror with a 48" focal …
A study on tangential ultrasonic-assisted mirror grinding ...
Zirconia ceramics have been used in the field of smartphone manufacturing, especially for the phone shells. To improve the machining efficiency and simultaneously obtain a mirror-surface quality on the curved surface made by zirconia ceramics, the tangential ultrasonic-assisted grinding (TUAG) was proposed, in which the ultrasonic vibrations of the grinding …
Mirror grinding - scope 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, "learn and practice" mirror.It …
Mirror Grinding Machine | Hackaday
Mirror Grinding Machine. The true test of the amateur astronomer is building their own telescope. Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank ...
Joy of Mirror Making: Rough Grinding - BBAstroDesigns
· Grinding the curve into the mirror face can be done by one of …
King Telescopes, telescope mirror blanks, using both ...
Our intent is to provide a source for lower cost, mirror blanks, and supplies for grinding your own telescope mirror. If I had known as a kid how, well not easy, but indeed not as hard as I would have expected to grind my own mirror. I sure would have had a much nicer scope then. At present we have a supply of high quality Pyrex mirror blanks.
Mirror Grinding Machine
My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telescope mirrors. 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, …
Super long life mirror grinding using ultrafine-crystalline …
Super long life mirror grinding using ultrafine-crystalline cBN abrasive grit Yoshio Ichida CBN&Diamond nanomachining institute Ultrafine-crystalline cBN abrasive grit Mirror grinding Grinding wheel life Mirror finished surface Cutting edge wear Micro dressing
tut44 Making A Mirror Grinding Tool - Asterism.org
After fine grinding is complete, the mirror must be polished. It is during polishing that you "figure" the mirror by using a different polishing stroke to change the mirror's spherical polished shape into a parabolic polished shape . See a related tutorial nearby titled, " Making A Mirror Polishing And Figuring Tool ".
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Mirror-grinding of single-crystal diamond substrates with ...
High-efficiency mirror grinding of single-crystal diamond substrate was investigated. • A rotary grinder with a #15000 diamond wheel was used for mirror grinding. • A record high removal rate (0.04 μm/min) was achieved. • The processed surface was ultrasmooth with ~0.1 nm average surface roughness.
Robotic mirror grinding? - ATM, Optics and DIY Forum ...
It is not a robot, but just a pattern of polishing. For big aperture though, spinning a large mirror and moving a large polisher might be too much work. That is why the mirror lab spun caste their glass to avoid hogging, and then had a robot go around grinding and polishing the high spots. Or maybe they spun ground it.
Basics of Mirror Grinding
Basics of Mirror Grinding. Glass mirrors are typically ground from a blank, or cylindrical piece of glass, using the abrasion created by moving the mirror across a second glass blank (the tool) which is covered with silicon carbide or aluminum oxide grits. The initial rough grinding process uses grit sizes of 60, 120, and 180 to carve out the ...
Mirror Grinding of Silicon Wafer with Silica EPD Pellets ...
Abstract. This paper deals with mirror grinding of silicon wafers using EPD pellets of silica aggregate grains. The EPD pellets were fabricated by using electrophoretic deposition phenomenon. Mirror surfaces without scratch marks can be obtained by grinding with the silica EPD pellets. The grain size has a small influence on the grinding ...
Mirror grinding_Shenzhen Shuguang Precision Machinery …
Mirror grinding-Shenzhen Shuguang Precision Machinery Co., Ltd. -Mirror grinding (mirror processing) is a process that uses fine abrasive particles to evenly trim the unevenness of the workpiece surface to nanometer level. It is the highest state of metal cutting and ...
Telescope Mirror Kits - Firsthand Discovery
Want to build your own telescope? Start with one of our telescope mirror kits. Each kit comes with a telescope mirror blank and all the abrasives (silicon carbide grits and white aluminum oxide powders), cerium oxide polish and pitch to grind and polish it to your specifications. Please note that our kits do not include a grinding tool or pitch ...
Mirror Grinding - Take A Class Or DIY? - ATM, Optics and ...
Page 1 of 3 - Mirror Grinding - Take A Class Or DIY? - posted in ATM, Optics and DIY Forum: Ive been interested in grinding/polishing my own Newt mirror for a long time but dont know how to get started. As a beginner, would you recommend attending a workshop or class or is it possible to make a good mirror using other learning resources such as books and online …
Mirror-grinding of single-crystal diamond substrates with ...
The mirror-grinding was conducted as follows, regardless of whether the substrate was rotated or fixed. When the grinding wheel first touched the surface of diamond specimen, the spindle position was maintained without application of any feeding for several minutes (zero-position grinding). The grinding wheel was then fed at a certain rate up ...
TAIKO | TAIKO | | | DISCO Corporation
TAIKO. High quality sapphire processing. Reducing wafer edge chipping by optimizing the fine grinding amount. Improving TTV by Planarization of backgrinding (BG) tape. Uniformed Surface Roughness Variation in PZT Grinding. High Quality Processing of InP (Indium Phosphide) High-Quality Grinding of Lithium Tantalate.
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