Mirror Grinding Machine Setup

  • Home
  • >
  • Mirror Grinding Machine Setup

Mirror Grinding Machine Setup - YouTube

Jun 19, 2009  Hybrid-Hindle grinding/polishing machine for telescope mirrors and lenses.

More

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.

More

Making a homemade mirror grinding machine - ATM,

Mar 06, 2006  Gordon will know more about the math for different mirrors and different sizes. I recall for mine it was about a 70% tool diameter. The bucket Gordon used to make the tile tool was 8 15/16", 70% of 12.5" ends up at 8 3/4". Looking back at my notes I used the

More

Mirror grinding - scope making

Add the usual half teaspoon of grit, sprinkle with water and grind for a couple of minutes, rotating tool and mirror often. Rinse the mirror and inspect the grid lines. If the grid is worn out evenly, you are doing fine. If you grinded with TOT, the edges will be more worn than the

More

telescope mirror grinding / polishing machine with ...

Feb 15, 2016  The machine is shown grinding a 300 mm mirror.How to build a tachometer: florin.myip/blog/making-tachometer-grinding-polishing-machine-telescope-m...

More

Mirror grinding machine-runout - ATM, Optics and DIY Forum ...

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. 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 ...

More

Mirror Grinding Machine Products Suppliers ...

Supplier: JS Machine, Inc. Description: Orbital polishing machine type LPC 500 mirror has been designed, like the other two smaller versions, for straight and bent tube mirror polishing up to maximum diameter 203 mm.; this unit is equipped with liquid polishing paste

More

Machine grinding a 25" telescope mirror. www ...

Nov 16, 2012  Grinding 500 grit on a 25" f/3.0 meniscus mirror. Tool is a 19" glass tiled stone tool with about a 3" overhang and about 37 pounds of weight.

More

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

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 abrasi...

More

How I built an edge grinder for telescope mirror blanks.

The chips aren't too bad, and aren't really a problem at all if I am cutting disks to fuse together. If the disk needs to be chip free, I simply cut it a little oversize and then grind down the edge to size (erasing the chips along the way) with the edge grinding attachment. Here is a photo of the machine set up to cut another glass disk.

More

Mirror grinding machine construction log - James Crombie

Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. ... And some other views of the setup. The overarm is just resting on the blanks, nothing is glued or pitched together, just posed for the pictures :-)

More

SkyBadger - Mirror Grinding Machine

First Grinding log. To setup for a grinding session I needed to provide the mirror mount to hold the mirror on the grinding base and the tool to hang off the eccentric drive arm. The mirror mount I provided for by putting three inserts in the grinding table at 120 degrees on a 6" PCD.

More

Mirror grinding machine-runout - ATM, Optics and DIY Forum ...

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. 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 ...

More

Mirror-o-Matic mirror making machine - ATM pages of ...

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.

More

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.

More

Mirror Grinding Machine - ATM, Optics and DIY Forum ...

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

More

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

More

Ronchi Matching Test - BBAstroDesigns

It's easy to setup, easy to see, easy to understand. Dennis Rech's comments, inventor of the Mirror-O-Matic mirror grinding machine 'When someone asks me to look at their mirror, I have them send me the parameters of the mirror and then I use a Ronchi program to

More

Mel Bartels' Amateur Telescope Making

The I.A.U. named asteroid 17823 Bartels discovered 1998 by J.M.Roe in recognition for my contributions to amateur astronomy. Making is the Key to Knowing. A telescope mirror is arguably the most accurate surface made by human or machine. Amazingly you can grind a mirror by hand and make a telescope with simple hand tools.

More

Stellafane ATM Main Page

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.

More

Grinding (Machining) - an overview ScienceDirect Topics

Little has been reported on mirror-finish internal grinding due to the limitation in abrasive grit size applicable to nonmetallic-bond grinding wheels. ... After mounting the wheel on the grinding machine, ... EDG setup is having similarities with EDM setup and conventional abrasive grinding setup.

More

Glass Edging Machine Glass Fabrication Equipment Yetuo

Car Rear View Mirror Edge Chamfering Machine The car rear view mirror edge chamfering machine consists of A/B (two) lines, 8 suckers and 16 grinding heads, and combines locating, absorbing and conveying, edge-grinding, controlling, vacuum and a cooling system. Chamfering, edge grinding, fine grinding and fine chamfering processes can be set at ...

More

Lapping and Polishing Basics - South Bay Tech

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 ... Below is an image showing the Model 920 with a typical setup for lapping. Figure 1: Model 920 Lapping and Polishing ...

More

Parabolizing a 20" Mirror, Part 2: Deepening the Curve

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 abrasi...

More

tut44 Making A Mirror Grinding Tool - Asterism

After fine grinding is complete, the mirror must be polished. It is during polishing that you “figure” the mirror by using a different polishing stroke to change the mirror’s spherical polished shape into a parabolic polished shape . See a related tutorial nearby

More

Mirror grinding machine construction log - James Crombie

Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. ... And some other views of the setup. The overarm is just resting on the blanks, nothing is glued or pitched together, just posed for the pictures :-)

More

Making A Mirror Grinding Machine

Mirror Grinding Setup. making a mirror grinding machine - mirest. Mirror-o-Matic mirror making machine ATM pages of. 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 . Get Price

More

Mirror Grinding Machine Hackaday

Sep 26, 2006  Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built this mirror grinding machine from scratch.

More

Mirror grinding machine-runout - ATM, Optics and DIY Forum ...

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. 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 ...

More

Mirror Grinding Machine Products Suppliers ...

Supplier: JS Machine, Inc. Description: Orbital polishing machine type LPC 500 mirror has been designed, like the other two smaller versions, for straight and bent tube mirror polishing up to maximum diameter 203 mm.; this unit is equipped with liquid polishing paste

More

Astro-Tel - Mirror grinding machine

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 "A" Fig.3, Page 163, "Amateur Telescope Making" Book 1. A bowl which rotated was fitted

More

M-o-M Free Preview - Mirror-o-matic

Mirror-o-Matic was designed to be a very low cost astronomical mirror grinding, polishing and figuring machine. Its attributes are: 1. It can be built for somewhere between $200 and $400. 2. It is constructed of hardware store items and it needs no machined parts. 3. It is constructed primarily of 3/4 inch plywood and has few close tolerances. 4.

More

Large Thin Mirror Making - BBAstroDesigns

A grinding machine ... 1980, glass came 16 sided on the edge, with deep ripples on the face and back. A lot of work went into preparing the mirror for initial grinding! I had to setup a tool to grind the edge round, put bevels on the front and back, grind the back flat, then grind the front flat without creating a lot of wedge (difference in ...

More

Stellafane ATM: Build Mirror Test Equipment

The Mirror Test Stand. The mirror test stand must be able to support the mirror vertically. The mirror will need to be aligned with the tester, which may require adjusting the overall height of the mirror with respect to the tester, adjusting the vertical tip of the mirror and adjusting the yaw, or side-to-side angle with respect to the tester.

More

Making two matching 30 inch [0.76m] F2.7 telescope mirrors

Grinding time per mirror was 5 hrs of 500 grit, 5 hrs of 220 grit and 4 hours of 60-90 grit; grinding times for the tool are double the individual mirror numbers. Step #10: cast a new tiled tool to finish grinding. Goal: make a replacement tool to finish grinding the mirror faces as the first tool failed.

More

Parabolizing a 20" Mirror, Part 2: Deepening the Curve

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 abrasi...

More

SkyBadger - Mirror Grinding Machine

First Grinding log. To setup for a grinding session I needed to provide the mirror mount to hold the mirror on the grinding base and the tool to hang off the eccentric drive arm. The mirror mount I provided for by putting three inserts in the grinding table at 120 degrees on a 6" PCD.

More

Grinding Machines - BENTELER Glass Processing Equipment

The BENTELER flat glass grinding machines convince due to their optimal grinding results based on precision, speed and process reliability. All machine types satisfy with short set-up times because of rapid width and automatic glass thickness adjustment.

More