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3 8220are mirror machines that useful8221 8211 much more useful than making your own lenses
Get A Quote3 8220are mirror machines that useful8221 8211 much more useful than making your own lenses
A good starter size is the 150 mm 6quot mirror. A 200mm 8quot will also work. Most ATM books and websites recommend a Pyrex174 mirror blank, but in my opinion, annealed plate glass is better for this first, quotlearn and practicequot mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical visible at ...
A high-quality grinding and polishing machine in a compact design that delivers excellent results on both single specimens and multiple specimens in holders. LaboSystem A modular manualsemi-automatic grinding and polishing system with a choice of polishers, specimen movers and dosing units for the ultimate in adaptability.
All step down done with pulleys amp belts. Are gears better
Aug 19, 2019nbsp018332A few years ago, I was thinking about hand grinding a mirror. I watched a YouTube video of John Dobson hand grinding a mirror. I dont 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 mirror.
Aug 19, 2019nbsp018332Gordon Waite is probably one of the better mirror makers using this machine and have incorporated some of his ideas into my plan. I like the fixed-post plan vs others with eccentric drives, because it gets the heavy grinding done in an automated
Belts will give a smoother drive and cut than gears but might not be particularly important at this early stage. Fine grinding a certainly polishing are usually done via belt drive.
Depending on the grinding machine and grinding process, there are a number of coolant lubricant nozzles which ensure needs-based coolant lubricant supplyyou can find examples here. Other advantages of optimum cooling may be a higher service life for the grinding tools and higher productivity of the grinding process e.g. through fewer rejects ...
Devices like these are still used nowadays by amateur telescopeoptical instrument makers round the world. The version they use is a table top sized mechanism but is essentially of the same design, the only difference being the use of an electric motor instead of the hand crank
Elgin-Waineo machines . This is the most common type of machine at 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.
Fixed-post machine grinding is where the mirror is on a turntable rotating around 20 PRM speeds vary, and a 75 tool is on top. They are already curve-generated. The tool is hanging over the mirror by 16 the diameter of the tool, or about 18 diameter of the mirror, and is fixed in this position.
For small components, single-sided polishing techniques are best suited to accomplish this task. We employ double-sided polishing services for precision optical parts such as wafers, mirrors and windows. In addition to both polishing techniques, we have the ability to apply anti-reflective and surface mirror coating solutions.
For this, he used a polishing machine which he described as early as 1841, for the benefit of the Royal Society. Later on, still another amateur, a rich merchant, William Lassell 1799-1880, used a polishing machine for the creation of large-sized mirrors notably a 122cm mirror
George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory.
I also made a short animation of the grinding movement in AVI1.7mb or as a animated GIF2mb GRINDING LOG-----July 22, 2003 Machine settings - Platter set at 15rpm - Overarm speed - 6 strokes per min fixed, Stroke- 2.375quot aprox 10 lbs weight on mirror.
I borrowed a few ideas from the Mirror-O-Matic mirror grinding machine, particularly how to mount the turntable on top of the pulley. Anyone building machinery for cold-working glass should have a look at the MOM web site and plans. There are lots of good ideas there.
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. The machine can also work smaller mirrors if the drip pan is moved to the fast shaft on the side of the machine.
If your applications require a low scatter mirror, we offer our ScatterStopx2122 polishing technology which delivers single Angstrom level surface finishes on materials such as SiC, molybdenum, aluminum and copper.
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Its also arguably the most accurate surface made by man or machine. If the mirror is expanded to the size of a football field, then the mirrors surface will be smooth to 11000 inch or 130 millimeter Polishing a 10.5 inch 27cm F2.7 plate glass meniscus shaped mirror. ... Here is a 25 inch mirror on top of the fine grinding tool with ...
Jan 01, 2011nbsp018332In the 1980s machines such as the OAGMoff-axis grinding machinebuilt for Eastman Kodak had a 2.5 m capacity with a grinding accuracy of approaching 1 part in 10 6. Such state of the art machines today require high levels of investment for both acquisition and operation, and do not offer the levels of throughput envisaged for the next ...
Mar 06, 2006nbsp018332Making a homemade mirror grinding machine - posted in ATM, Optics and DIY Forum I want to make a motorized mirror grinder , any good info on this , i have a couple geared motors , low speed high torque. One more question ...will 1 12 shaft size pillow block bearings work good for a homemade EQ mount Thank you , John
My Mirror Grinding Machine. For a long time Ive wanted to build a machine for grinding telescope mirrors. Dennis Rechs M-o-M designs finally inspired me to just get up and do it. Over the years, Id been collecting motors, gear boxes, pulleys, etc. Most of them came from industrial junk yards.
Nov 01, 2011nbsp018332Basically there are two types of grindingpolishing machine. The traditional type which involves the mirror rotating at a relatively slow speed, a few rpm for a big mirror 16-20 inches with the tool moving across the mirror, from side to side, at a higher rpm depending on the size of the mirror
On the RPM I think Gordon Waite is king of this stuff and his rough grinder
Our specialty machines are well suited for applications such as heat sinks, lithography reticle transfer cases and precision mirrors. View Brochure The precision mirrors we produce come in a variety of configurations ranging from large area planar mirrors for beam steering and positioning systems to multi-faceted spin mirrors for defense and ...
PZX 5-Axis Prism Grinding Machine. The PZX prism grinding machine is the latest solution for companies looking to enhance their prism manufacturing capabilities. Machine prisms up to 6 thick with a maximum diameter of 10 for the longest diagonal.
Quality surface finish is a top priority for tool and die manufacturers, and machines like those showcased at United Grindings recent Universe event are among the best ways to achieve it. Hosted in Miamisburg, Ohio September 16-17, the event exposed more than 400 attendees to a wide range of cylindrical, centerless, radius, surface and other grinding technology from the companys ...
Strasbaugh polishing and grinding machine. You wont find very many of these around. Strasbaugh is the premier manufacture of machines used by the professionals. This machine is solid no plastic or wood. You can adjust the spindle and eccentric speed with a turn of a knob while running. It makes mirror grinding a pure joy.
Surface Finishes single-point diamond fly cutting machines are custom designed to produce accurate and precisely controlled flat surfaces and geometries involving combinations of flat surfaces. Our specialty machines are well suited for applications such as heat sinks, lithography reticle transfer cases and precision mirrors.
