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Mirror grinding (scopemaking.net) 195 points by ... they've switched to machines in that last step to make it faster and more accurate, but for many applications the traditional way worked just fine. reneherse on Mar 10, 2017 >if you took a typical 1 meter mirror and scaled it up to the size of the United States, the biggest deformity from a ...
The grinding machine had been built to the design of the mirror-o-matic design of Dennis Rech ( link ). While the bulk of the components were in place it wasn't finished: some linkages were not in place, the tool drive arm was unfinished and a few other bits weren't there.
mexico grinding mirror machine pdf, Links: goo.gl/N1nfWU (Hot!!!) is quite experienced in construction, milling and mining industry » Learn More. grinding machine cad file. Track Mounted Mobile Crushing Plant; is one of the biggest manufacturers in aggregate processing machinery for the grinding machine cad file,
Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches [1.1m] in diameter. By slipping on and off a couple of belts, the machine can quickly be reconfigured for spinning work or for stroking work.
Mirror grinding tutorial After we have hogged out the saggita, we use smaller and smaller abrasives to remove all the remaining pits from rough grinding and prepare the glass disc for polishing and figuring.
We named this book Handbook of Machining with Grinding Wheels because the borders between grinding and other operations such as superfinishing, lapping, polishing, and flat honing are no longer distinct. ... professor of machine tools and manufacturing technology at the Institute for Machine Tools and Factory Management of ... 3.3.11 Mirror ...
Rough grinding a telescope mirror. The Oltion Relationship Jerry Oltion points out that if the sagitta is 1/16 of the unit of measure, the focal ratio is the mirror diameter.
Flexibility in speed control allows the instrument to be used as a grinding machine, high quality lapping machine, or polishing machine. During grinding high speeds are required, whereas lapping and polishing applications
Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." Most amateur astronomers believe, "I can buy a better
Study of Machine Tools – Grinding Machines Page 3 4.5 Grinding machine operations The process of grinding is the operation of removing excess material from metal parts by a grinding wheel made of hard abrasives. The following operations are generally performed in a grinding machine. 1. ...
Save mirror grinding machine to get e-mail alerts and updates on your eBay Feed. + Items in search results. TELESCOPE MIRROR GRINDING Machine Design INFO PLANS original 1951. ... GLASS EDGING POLISHER MACHINE 9 MOTORS FOR GLASS AND MIRROR EDGING AND POLISHING. Brand New. $17,415.00. Free local pickup.
This grinding machine is a production machine in which out side diameter of the workpiece is ground. The workpiece is not held between centres but by a work support blade. It is rotated by means of a regulating wheel and ground by the grinding wheel.
Grinding polishing machine - All industrial manufacturers ... Find your grinding polishing machine easily amongst the 58 products from the leading brands (Satisloh, Weingärtner, ...) on DirectIndustry, the industry specialist for your professional purchases.
Mirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.
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On the picture below the machine is fine grinding an 8 inch mirror with an 71% tool (143 mm diameter) and 9 micron aluminium oxyde. The bent lines on the mirror are the effect of the tool turning - with respect to the mirror - faster at the central part of the mirror as compared to the edge zones.
UTILITY GRINDING MACHINES The utility grinding machine is intended for offhand grinding where the workpiece is supported in the hand and brought to bear against the rotating grinding abrasive wheel. The accuracy of this type of grinding machine depends on the
Sep 29, 2010· 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 8 mirror. 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 aluminum disk for the turntable and have made a parts list …
The mirror (or tool) was then carefully placed on top of the tool (or mirror) and grinding started (i.e., pushing the glass disk on top back and forth). The procedure was quite similar to grinding a smaller mirror, except that the disks are heavier.
grinding machine textbook pdf - CGM Grinding Plant . related tags download grinding machine pdf book free download pdf grinding machine pdf rapidshare.com ... 50 Years News Release Pdf manual cnc grinding machines...
Using the above-mentioned grinding strategies, a SiC mirror blank with an aperture diameter of 2 m was successfully ground to a form accuracy of 18 μm in peak-to-valley (PV).
Lens & Mirror Making • Best lenses and mirrors are both made by grinding the surface • Start with a mirror or lens blank • For mirrors only surface needs to be good • Typical mirror want pyrex (eg BK7) • Then need a tool blank – poorer glass & softer glass ... Grinding Machines
"CN" operated machine suitable for grinding and "MIRROR" polishing on sheets and, with proper equipment, plates with square or rectangular section and tubes with round and oval section.
3.2 Grinding machine A vertical machining center (Yamazaki Mazak VQC-15/40, controlled axes : 3 axes, least input increment : 1 Ixm) was used as a grinding machine. When a toroidal mirror was ground, the micro-displacement table was attached to the machining center, and the workpiece was fixed on the micro-displacement table.
Products/Services for Telescope Mirror Grinding Machine Grinders and Grinding Machines - (992 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish.
telescope making, mirror grinding, homemade tripod, eyepieces, astronomy . ... Printer friendly version of this tutorial (*.pdf) There are many reasons for grinding your own mirror. Either you want a unusual size, or focal length, or to satisfy your curiosity, or to have the "pride of achievement" by fabricating something as precise as a ...
Oct 03, 2006· When I built my machine, I didn't have a computer or any books on building grinding machines so I built one that mimics the stroke a person would do. For instance, my turntable rotates at just one RPM and the stroke eccentric turns at 36 RPM.
Surface Texture & Machining Symbols ... A good machine finish produced under controlled conditions using relatively high speeds and fine feeds ... A high quality surface produced by fine cylindrical grinding. emery buffing. coarse honing. or lapping. it is
grinding machines perform the dressing task automatically. The application of coolants to the grinding process is important. Coolants reduce grinding machine power requirements, maintain work quality, stabilize ... Basics of Grinding (CBN) grinding. grinding. (DAF) grinding. (DBF) grinding. (ECH) grinding.
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 quality.
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, gear boxes, pulleys, etc.