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.
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Mechanical assembly is complete. The machine could start grinding now. I still need to build the electronics, and then there's painting and finishing.
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A grinding machine relieves the labor, but is not necessary. A 24" is the largest you can comfortably do solo. ..., Sky and Telpe magazine starting on page 75 carries an article by Toshimi Taki, analyzing mirror cell design to support thin mirrors. ... We choose 220 grit to start because the grinding particles are small enough to move onto ...
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May 2, 2018 - Explore Gene Cross's board "Telpes for Amateur Astronomers", followed by 253 people on Pinterest. See more ideas about telpes, astronomer, telpe.
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Chongqing Amity Technology Co., Ltd. is an innovative technology. We produce metal frame,chair base,plastic parts and by ourselves. We are good at produce gaming chairs and gaming desk.Welcome to communicate. Chongqing Amity Technology Co., Ltd. was built in Spring of 2000.It is located on Building 7, Internet Industrial Park, Hengshan ...
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This is part 2 of my video series documenting grinding and polishing a 12.5 inch telpe mirror. I'm using a spin or fixed post grinding machine. This vi...
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Hydraulic Press. Holding the press tool without a ratchet bar to prevent accidents due to hydraulic failures. Officially approved and certified acc. to ISO 16092 (ex EN 693). Safety Catcher (Series K, KR) Safety Catcher (Series K/TA, KR/T)
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Rough grinding is complete for the 12.5 inch honeycomb-back telpe mirror blank. The rough grinding went pretty quickly and painlessly this time. I only have maybe 12 hours of actual work in the mirror so far. It's hard to believe, but the rough grinding has removed over a pound of glass. The mirror now weighs in at only only 8 pounds 15 ounces.
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Gordon Waite sets up his fixed-post mirror grinding machine to begin rough grinding on an 11" f/4.3 telpe mirror. He uses a grinding tool made from dent...
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Mel grinding the back side of a 30 inch mirror over a full sized tiled tool; you can see the other 30 inch in the left background. Rough grinding is hard and messy. After rough grinding most of the tool is in contact with the mirrors though it is clear that some of the Hydrostone leaked under the tiles. I spent 3 hours apiece, total of 6 hours.
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A 6" or 8" mirror should take about 40 to 80 hours of effort. While this is a non-trivial amount of time, the mirror can be completed in a few months, and certainly within a year. Most people work one to three hours a day on their mirror about one or two times a week. Homemade Mirrors are of Inferior Optical Quality.
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A look at a 15" Telpe Mirror, with Ronchi history. The fabrication of this 15" F4.5 primary telpe mirror began with a planoplano blank. I used my own diamond grinding equipment to generate the rough curve here. After the generation, I poured a steel grinding tool and used #40 silicon carbide abrasive to get the mirror close to the ...
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Goplus 750W Drywall Sander with LED Light and Collection Bag, Variable Speed 900-1800 RPM Electric Drywall Sander with Telpe Handle and 6 Sand Pads, Dust-Free Wall Grinding Machine - - Amazon
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The well used tile tool at right illustrates a couple of maintenance issues. 1. Tiles Grind Away: You may grind through your tiles at the edge, especially if you are making a very fast (low focal ratio) mirror.In that case, you can epoxy a second layer of tiles on over the first.
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Gordon Waite sets up his fixed-post mirror grinding machine to begin rough grinding on an 11" f/4.3 telpe mirror. He uses a grinding tool made from dent...
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Theories on designing a robotic mirror grinder. - posted in ATM, Optics and DIY Forum: So I have been thinking and doing some preliminary design work on a robotic telpe grinding machine with the intent to grind a 12 inch parabolic primary mirror for a telpe I intend to build. I have been trying to understand the mechanics behind grinding a telpe …
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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...
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Cookie settings We use cookies to offer you the best services for your visit at our web site. Basic cookies enable fundamental features and are required to ensure the proper functioning of …
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Treas. and Pres. of the Amateur Telpe Makers of Long Beach, 319 Hermosa Ave., Long Beach, Calif. "IN the March issue of Scientific American . you mentioned your hope of hearing from those who are grinding 20" Pyrex mirrors. Here is our bid for membership in the Twenty-Inch Club. "We received our solid disk on January 9.
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The Mechanical Safety Catcher KRM is operated purely mechanically and requires neither a hydraulic nor a pneumatic system for control. The clamping head is kept open mechanically and acts upon rupture of the suspension (rope, belt, chain, etc.). The energy of the falling mass is then used to generate the clamping force.
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Oerlikon Bevel Gear Grinding Machine G 30 Minimal retooling and configuration times. ... Innovative, high-pressure-resistant telpe system for quick and easy adjustment of the grinding oil supply with minimal tool requirements for shorter set-up times;
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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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A grinding machine relieves the …, Sky and Telpe magazine starting on page 75 carries … A lot of work went into preparing the mirror for initial grinding! Grinding and Testing a Telpe Mirror – The St. John's …
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Very old mirror/lens grinding machine. This machine can grind and polish using different stroke patterns, i.e. w-stroke, short strokes, long strokes, etc. C...
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Making a telpe mirror. To start, a new mirror blank is "sanded" down to create a precise parabolic curve in a process called grinding. To do that, the blank is …
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edging machine that can grind the outer diameter and put bevels on both sides in one run. Although less common, bevels can also be added after centration, either using a stone grinding wheel or convex or concave bevel tools.
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Amateur Telpe Making Main Page. "For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telpe. It is also true that if an amateur starts out to build a telpe just for fun he will find, before his labors are over, that he has become seriously ...
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Once Hubble began returning images that were less clear than expected, NASA undertook an investigation to diagnose the problem. Ultimately the problem was traced to miscalibrated equipment during the mirror's manufacture. The result was a mirror with an aberration one-50th the thickness of a human hair, in the grinding of the mirror.
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Now that I have several blanks made, it is time to grind and polish one into a telpe mirror and test it out. I can use one blank as the mirror and another as the grinding tool, and have a couple in reserve in case something goes horribly wrong during the grinding and polishing operations. I'll post an update once a mirror is completed.
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NC grinding of aspheres has been done but a sufficiently stiff machine with adequate resolution encoders is required together with sufficiently accurate (sub micron) metrology so that achievement of the desired shape can be confirmed before polishing. IIRC REOSC used computer controlled fine grinding on the VLT primary meniscii.
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Orion Motor Tech 850W Electric Power Drywall Sander with Vacuum Dust Collector, Swivel Head Extendable Variable 5-Speed LED High Visibility Wall Grinding Machine and 12 Sanding Discs Drywall Sander Handife 7A 800W Electric Foldable Wall Sander, Double-Deck LED Lights Sander, 800-1800RPM Electric Drywall Sander w/Dust-Free Automatic Vacuum ...
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1. Clean: Make sure your plaster disk is clean and dry.If you are using a glass substrate or tile tool, clean the surface with turpentine. 2. Build a Dam: Using 2" wide masking tape, build a dam at least 3/4" high around the edge of the disk to hold the pitch in when you pour it. Leave a tab at the end by to facilitate later removal.
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Type ID no. (order no.) Rod Ø mm Admiss. load kN press. bar Casing ∅ mm Casing Length mm Download Price; KRG 22: KRG 022 10: 22: 10: 100: 78: 139
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Grinding is also often utilized to remove significant amounts of material to bring a stock sheet or plate to precise dimensions. To do this, machine shops primarily utilize surface grinders with a reciprocating table and a horizontal spindle that turns the grinding wheel, but the process is very slow.
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Rough Grinding a 20" Quartz Telpe 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...
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Grinding Machine for Large Telpe Mirrors Grinding Machine for Large Telpe 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 …
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Bill W, Ian K, David G, and I (Guy B) modified an existing quasi-Mirror-O-Matic machine by changing pulley ratios and changing it into sort of a Draper machi...
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Step 1/6 Unlocked The safety catcher is unclamped by pneu- matic or hydraulic pressure applied to the annular piston. A well-defined clearance en- sures that the shaft can move without friction. . Proximity switch 2 active. Please rotate your device.
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My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telpe 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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