fixed post mirror grinding machine

Fixed post mirror grinder advice - DIY Astronomer ...

Nov 01, 2011  Basically there are two types of grinding/polishing 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

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jeffbaldwin

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 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed in this position.

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fixed post mirror grinding machine - Stone Crushing Machine

grinding machine fixed - Newest Crusher, Grinding Mill ... This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, ... Chat Now; Fixed-Post Mirror Grinding Machine - YouTube Shown here I have the overarm locked to use the machine in fixed-post grinding/polishing mode.

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Building a fixed post mirror grinding machine ...

Aug 19, 2019  Re: Building a fixed post mirror grinding machine Post by Kanadalainen » Mon Aug 19, 2019 12:10 pm I I had a nice piece of 3/4" stainless dowel that was begging to be used.

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Building a fixed post mirror grinding machine - Page 2 ...

Oct 13, 2019  Re: Building a fixed post mirror grinding machine Post by Kanadalainen » Mon Aug 19, 2019 12:39 pm In this image I have put together a gear reduction stage for my DC motor.

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Fixed Post Grinder/Polisher Build - ATM, Optics and DIY ...

Sep 20, 2019  I would guess the mirror-o-matic is more versatile than the fixed post method but the fixed post machine is much easier to build. The fixed post method will do everything needed to grind and polish a mirror from start to finish in a relatively short amount of time. Once I generate the curve on a mirror blank I switch to my fixed post machine ...

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fixed post mirror grinding machine - auxpatesfraiches

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 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed in this position.

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Fixed post mirror grinder advice - Page 2 - DIY Astronomer ...

Oct 29, 2018  Fixed post mirror grinder advice Facebook; Twitter; ... I am looking for plans in order to build my own fixed post for grinding machine Share this post. Link to post Share on other sites. fwm891 2,134 fwm891 2,134 Retired Photographer; Members; 2,134 3,226 posts ...

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Fixed-Post Mirror Grinding Machine - YouTube

Aug 22, 2014  Shown here I have the overarm locked to use the machine in fixed-post grinding/polishing mode. The overarm can be engaged with

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fixed post mirror grinding machine - Stone Crushing Machine

grinding machine fixed - Newest Crusher, Grinding Mill ... This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, ... Chat Now; Fixed-Post Mirror Grinding Machine - YouTube Shown here I have the overarm locked to use the machine in fixed-post grinding

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Building a fixed post mirror grinding machine - Page 2 ...

Oct 13, 2019  Re: Building a fixed post mirror grinding machine Post by Kanadalainen » Mon Aug 19, 2019 12:39 pm In this image I have put together a gear reduction stage for my DC motor.

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Fixed post mirror grinder advice - Page 2 - DIY Astronomer ...

Oct 29, 2018  Fixed post mirror grinder advice Facebook; Twitter; ... I am looking for plans in order to build my own fixed post for grinding machine Share this post. Link to post Share on other sites.

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fixed post mirror grinding machine - auxpatesfraiches

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 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed

More

mirror-maker - Waite Research Telescope Mirrors :: Home

Fine Grinding a 20" Quartz Telescope Mirror. Rough Grinding on the Fixed-Post Mirror Grinding Machine. Hogging the Curve on a 20" f/4.5 Quartz Telescope Mirror. Astronomy magazine names

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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.

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Rough Grinding a 20" Quartz Telescope Mirror on the Fixed ...

Rough Grinding a 20" Quartz Telescope Mirror on the Fixed-Post Machine This video shows how to setup a mirror grinding machine for fixed-post grinding, also known as spin grinding or spinning. After setup, you'll see how abrasiv...

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Fixed abrasive grinding of CVD SiC mirrors - ScienceDirect

Apr 01, 1994  No data are available for time spent performing the super-polishing operation shown in this table. PRECISION ENGINEERING 113 Bifano, Yi, and Kahh Fixed abrasive grinding Table 4 Grinding conditions on PVTB machine Flat mirror f/400 SiC mirror f.14 SIC mirror Grinding geometry Contour grinding, Contour grinding, peripheral wheel, peripheral wheel.

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fixed post mirror grinding machine - auxpatesfraiches

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 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed in this position.

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Waite Research :: 20" F4.5 Mirror Fabrication

The grinding sequence was 25-micron, 12-micron, and 9-micron then finishing with 5-micron. The mirror was rough polished using high-speed fixed-post polishing on a 75% pitch polisher. Rough parabolization was handled with a 40% lap to rapidly move the mirror

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mirror grinding diamond curve generating machine

Making my own fixed post mirror grinding polishing machine . nbsp 0183 32 Page 1 of 2 Making my own fixed post mirror grinding polishing machine posted in ATM Optics and DIY Forum Hey guys Im thinking of making my own fixed post mirror grinding polishing and curve generating machine Ive got loads of questions regarding the design so Ill just start firing away Do I need an eccentric moving tool ...

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Mirror grinding machine construction log - jamescrombie

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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mirror plate grinding machine - hadlaw.pl

Building a fixed post mirror grinding machine ... Aug 19, 2019 A few years ago, I was thinking about hand grinding a mirror. I watched a YouTube video of John Dobson hand grinding a mirror. I don't really remember how big it was, but it was big. Maybe 14". Maybe larger.

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Telescope Mirror Grinding Machines

Telescope Mirror Grinding Machines. Telescope mirror grinding machine plans. mirror grinding machine plan desertsafaridubaicoin. Grinding, Polishing and Figuring and get all the starting work done on diamond grinding machines you plan on working your mirror by machine Large Homemade Telescope Making Project , Bill's Homemade Telescope Making Project the cost of mirror grinding

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Parabolizing a Telescope Mirror - BBAstroDesigns

As measured from where the mirror's center rays cross the mirror's axis, each zone should cross at a point r^2/2R, where little r is the zone's radius and big R is the Radius of Curvature (this is for a moving light source, for a fixed light source double the values). Consider the 10 inch [25cm] F5 as pictured.

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Mirror-o-Matic

It is only a rough guide for speeds and techniques. If Mirror-o-Matic users will send details of their successes and failures, I will gladly post them on the Internet for the benefit of others. Machine grinding and polishing is almost always done with the mirror on the bottom (MOB) and the tool on top (TOT).

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6″ Dall-Kirkham – gordtulloch

I’m working on a fixed post mirror grinding machine big enough to handle the 600mm so I plan to mount my drill press head on the rails that the post mounts on and spin the disk as I drill to ensure the hole is centered. I’m not bothering to do the small mirror on the machine

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Optics - Norway's largest optical telescope

Fine grinding with a fixed-post grinding machine The fixed-post grinding machine is simple but effective. Exerting 0.75 horsepower, it makes the grinding, polishing and figuring of the 62 centimeter primary and 20 centimeter secondary mirror possible by smooth movement and even distribution of stresses over six, 100 mm diameter Rollerblade© wheels.

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Meet the Amateur Astronomers at Tele Vue #2

Nov 11, 2020  I approached mirror making as smart as I could. To prevent astigmatism, I decided not to grind the mirror by hand. Instead, I made a fixed-post grinder that was driven by a hand crank and this ensured that the mirror’s surface was ground symmetric about its optical axis.

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Optics - Norway's largest optical telescope

Fine grinding with a fixed-post grinding machine The fixed-post grinding machine is simple but effective. Exerting 0.75 horsepower, it makes the grinding, polishing and figuring of the 62 centimeter primary and 20 centimeter secondary mirror possible by smooth movement and even distribution of stresses over six, 100 mm diameter Rollerblade© wheels.

More

fixed post mirror grinding machine - auxpatesfraiches

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 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed in this position.

More

Fixed abrasive grinding of CVD SiC mirrors - ScienceDirect

Apr 01, 1994  No data are available for time spent performing the super-polishing operation shown in this table. PRECISION ENGINEERING 113 Bifano, Yi, and Kahh Fixed abrasive grinding Table 4 Grinding conditions on PVTB machine Flat mirror f/400 SiC mirror f.14 SIC mirror Grinding geometry Contour grinding, Contour grinding, peripheral wheel, peripheral wheel.

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grinding machine telescope

Building a fixed post mirror grinding machine. 19/08/2019 Are you working on another telescope?" Me: "Not this time, this is a glass grinding machine". Spouse: "OK, Have fun with that, be sure you vacuum up the mess, and throw out all the sundry flotsam." Its going to take a huge vacuum.

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telescope mirror grinding machines - Plaasaanvalle

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 1/6 the diameter of the tool, or about 1/8 diameter of the mirror, and is fixed in this position.

More

telescope mirror grinding machine price in india

17 Best Telescope Making images Space telescope . quot This video shows how to setup a mirror grinding machine for fixed post grinding also known as spin grinding or spinning After setup you ll see how abrasiv quot quot Rough Grinding a 20 quot Quartz Telescope Mirror on the Fixed Post Machine quot See more

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Telescope Mirror Grinding Machines

Telescope Mirror Grinding Machines. Telescope mirror grinding machine plans. mirror grinding machine plan desertsafaridubaicoin. Grinding, Polishing and Figuring and get all the starting work done on diamond grinding machines you plan on working your mirror by machine Large Homemade Telescope Making Project , Bill's Homemade Telescope Making Project the cost of mirror grinding

More

Mirror-o-Matic

It is only a rough guide for speeds and techniques. If Mirror-o-Matic users will send details of their successes and failures, I will gladly post them on the Internet for the benefit of others. Machine grinding and polishing is almost always done with the mirror on the bottom (MOB) and the tool on top (TOT).

More

50+ Best Telescope Mirror Making images telescope ...

Jun 8, 2017 - Explore Neil Aubrey's board "Telescope Mirror Making" on Pinterest. See more ideas about Telescope, Telescopes, Diy telescope.

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Mirror Polishing - YouTube

Mirror Polishing - YouTube ... Skip navigation

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Meet the Amateur Astronomers at Tele Vue #2

Nov 11, 2020  I approached mirror making as smart as I could. To prevent astigmatism, I decided not to grind the mirror by hand. Instead, I made a fixed-post grinder that was driven by a hand crank and this ensured that the mirror’s surface was ground symmetric about its optical axis.

More

Epc Grinding Machine Doest Rotate - oskar-neratovice

Mirror Grinding Machine Runout Atm Optics And Diy. Feb 21, 2015 Page 1 of 2 Mirror grinding machine runout 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.

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Quartz Grinding Machine Crusher Mills, Cone Crusher, Jaw ...

Feldspar Quartz Grinding Unit,Grinding Machine for Quartz 5mm. Posted at: May 10, 2012. Gulin® is a professional manufacturer of quartz grinding machines in China, and we supply grinding units for feldspar, quartz, coal,

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Used Mirror Grinder Machine In Pakistan

Leonardo Da Vinci's Mirror Making Machines. ÝÝÝÝÝÝÝÝÝÝÝ In his Codice Atlantico, Leonardo offers two of sketches of mirror making machines.Ý One machine is designed for grinding concave mirrors of small focal length.Ý The other machine, a much larger piece to implement, grinds mirrors of large focal lengths.Ý Though Leonardo da Vinci creates sketches of mirror grinding, one ...

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