draper mirror grinding machine

making a homemade mirror grinding machine - atm, optics

Mar 06, 2006 · Making 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 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you , John

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document sans nom - astrosurf

But throughout this saga, we also encounter professionals : among whom Henry Draper (1837-1882) who was one of the first to carve mirrors in application of Leon Foucault studies. For this purpose, around 1850, he invented a machine inspired by the one designed by Lord Rosse in 1840, which for a long time was the benchmark

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anyone made a initial-curve generator? - atm, optics and

Oct 19, 2004 · Purpose is mainly to elliminate as much grit as possible, while not spending a fortune on rare exclusive expences like diamonded pellets. We have a draper mirror grinding machine, so we can rotate the blanks while generating. #2 Mike I. Jones

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plane grinding machine, plane grinding machine suppliers

About product and suppliers: 2,136 plane grinding machine products are offered for sale by suppliers on Alibaba.com, of which wood planer accounts for 1%, wood based panels machinery accounts for 1%, and labeling machines accounts for 1%. A wide variety of plane grinding machine options are

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grinding wheel cutting machine manufacturers & suppliers

grinding wheel cutting machine manufacturer/supplier, China grinding wheel cutting machine manufacturer & factory list, find qualified Chinese grinding wheel cutting machine manufacturers, suppliers, factories, exporters & wholesalers quickly on

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grinding machine manufacturers & suppliers, china grinding

grinding machine manufacturer/supplier, China grinding machine manufacturer & factory list, find qualified Chinese grinding machine manufacturers, suppliers, factories, exporters & wholesalers quickly on

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abrasive & grinding manufacturers, suppliers & factory

Abrasive & Grinding manufacturers & suppliers, China Abrasive & Grinding manufacturers, suppliers & factory directory, find Chinese Abrasive & Grinding manufacturers, suppliers, factories, exporters and wholesalers easily on

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draper hindle type machines

Jun 10, 2020 · Henery draper mirror grinding machine. Document sans nom - astrosurf - astronomie. 2013-2-2 draperhindle-type machines this is the mother of all machines. its principle seems to have been elaborated by huygens, about 1738, and improved by lord rosse, and more recently by henry draper, an american astronomer

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bench grinders - draper tools

150mm Bench Grinder With Worklight (370W) A workshop machine with one coarse and one fine grinding wheel, worklight, adjustable eye protection shields, spark deflectors, wheel guards and tool rests. Supplied with grinding wheel dresser an... more. Stock No: 05095 Part No: GD625L View more

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draper design mirror grinder

Draper mirror grinding machine. Draper design mirror grinder telescope finders and 32 inch mirror on the draper the grinding machine new was a sanitary engineer henry draper 4 65 fm 910 t 910 tub grinder onlinedlwinternship draper-design mirror grinder crusherasia read more glass grind

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mirror grinding machine | products & suppliers

In September 1858, shortly after his return from Europe, Draper began the construction of a mirror grinding machine of Lord Rosse’s design. Advances in Abrasive Technology XVI The superhard diamond grinding wheel with large-grit size plays an important role in precision mirror grinding machining

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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, gear boxes, pulleys, etc. Most of them came from industrial junk yards

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mirror grinding machines. - atm, optics and diy forum

Oct 03, 2006 · Thanks for the video Jim. I had no idea that these machines ran at those speeds. 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

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explore how telescope mirrors are made

Jul 27, 2021 · Figuring is done by passing a second tool, referred to as a pitch lap, over the mirror by hand while the mirror rotates on the grinding machine. The grit used for this stage of production

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bench grinder polisher best 10 workbench mountable tools

Mar 30, 2020 · The DS small bench grinding machine sharpener with 240 Volts is a modern tool featuring a wheel size of 150 mm. It is small sized and compact, perfect for modest grinding and even sharpening uses. It employs a high powered, upkeep free induction electric motor. Features A Wheel Size Of 150 mm

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mirror grinding machine construction log - james crombie

I also made a short animation of the grinding movement in AVI(1.7mb) or as a animated GIF(2mb) GRINDING LOG-----July 22, 2003 Machine settings - Platter set at 15rpm - Overarm speed - 6 strokes per min (fixed), Stroke+/- 2.375" aprox 10 lbs weight on mirror

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