My Mirror Grinding Machine. For a long time I39ve wanted to build a machine for grinding telescope mirrors. Dennis Rech39s MoM designs finally inspired me to just get up and do it. Over the years, I39d been collecting motors, gear boxes, pulleys, etc.Get Price
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this video of my our first unfinished video of mirror grinding machine,made with easy available junk and bycycle parts and with help of local febrication shop
This is why you don39t want to make mirrors to be worked on machines too thin. For 1634 to 1834 mirrors, 1.6234 thick is the thinness I would recommend. There are several ways to support the mirror on a grinding and polishing machine turntable, but first make sure the turntable itself is rigid. It must not bend.
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.
A good starter size is the 150 mm 634 mirror. A 200mm 834 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, 34learn and practice34 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
I borrowed a few ideas from the MirrorOMatic mirror grinding machine, particularly how to mount the turntable on top of the pulley. Anyone building machinery for coldworking glass should have a look at the MOM web site and plans.
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 for
Grinding a Mirror 34For 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
MirrorOMatic grinding machine. When I decided in 2009 after a tenyear 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.
The mirror machine came to me as a result of astronomical horsetrading, swapping a large GEM mount and a 834 Newtonian OTA for the machine as it was and a start kit consisting of two 634 blanks and the grit, rouge and pitch to manufacture a mirror. The grinding machine had been built to the design of the mirroromatic design of Dennis Rech
MIRROR GRINDING MACHINE. I made my first mirror grinding and polishing machine over thirty years ago. It used the working principle of the machine illustrated at 34A34 Fig.3, Page 163, 34Amateur Telescope Making34 Book 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type.
Page 1 of 2 Mirror grinding machinerunout posted 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
Here is a 25 inch 635cm mirror being rough ground followed by a beautiful grinding stand from the Delmarva Mirror Making Seminar. Grinding Tools To construct a grinding tool, attach unglazed ceramic tiles, 1 inch 2.5cm square, to one of these substrates
My Mirror Grinding Machine. For a long time I39ve wanted to build a machine for grinding telescope mirrors. Dennis Rech39s MoM designs finally inspired me to just get up and do it. Over the years, I39d been collecting motors, gear boxes, pulleys, etc.
A history of polishing machines As often in sciences and technology, Leonardo da Vinci was a pioneer, creating machines for the production of optical devices. Indeed, between 1513 and 1517, he imagined machines to grind and polish telescope mirrors, which, at the time, were made of bronze.
Super fine, smooth cutting, scratch free final stage abrasives.. Final lapping is the key to smooth, regular surfaces that polish out quickly with no turned edges. The professional optician knows that a very fine, closely controlled abrasive makes it possible to grind out in a few minutes slight irregularities which would take hours of polishing to correct.
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. The machine can also work smaller mirrors if the drip pan is moved to the fast shaft on
Mirror Grinding Machine Leonardos Mirror Grinding Machine. leonardo miror grinding machine. The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it. This machine was most likely designed by Leonardo while he was either
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