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From the kiln of Horace Davis - Mirror Grinding Machine

I had an idle mirror grinding machine (a modified MOM 20), so I volunteered to grind and polish his blanks and check for strain using the cross-polarized light test. Soon, three plate glass blanks arrived, two 10 inch and one 7.5 inch.

Telescope Mirror Making Kits and Supplies - Grind your …

TelescopeMirrorKits.com provides telescope makers with the most complete telescope mirror making kits available anywhere on the web. When you buy a mirror kit from TelescopeMirrorKits.com, you get TWO glass blanks - one for your telescope mirror, and the other for your grinding tool - no more hassle making a grinding tool from …

Large Homemade Telescope Making Project - Google …

Unfortunately, the cost of mirror grinding kits and pyrex blanks has increased significantly in recent years to the point where any savings from making a mirror versus buying one are minimal at best. Yet, the larger the mirror you make the more money you can save when compared to buying a mirror already made.

How to grind a mirror, the complete video - YouTube

Aug 09, 2011· The full 40-minute video of how to grind a mirror blank prior to having it silvered. Made in association with Terry Pearce and Simon Lang of the Camden Amate...

tut44 Making A Mirror Grinding Tool

Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." Most amateur …

Newport Glass Works, LTD. Grinding, Polishing and Figuring ...

In addition to finding a blank for the mirror, you will need another disk for a grinding tool. It may be either a solid glass tool or a plaster tool covered with hard ceramic tiles - once again, your taste, energy, and previous experience will dictate what you want to try.

Sources for Parts - home made telescope | Building a …

A major supplier of blanks and supplies for those considering grinding their own mirrors. Newport's sells educational kits for beginners that include the cost of vacuum coating. To compare to ASM, for example, Newport has 8 inch kits, including vacuum coating and a secondary mirror for $149 US ($223 Canadian), plus shipping.

Jumping into Mirror Making, by Michael Mills - novac.com

Then we beveled the edges of our preground f/8 blanks and tools and started grinding. Since the blanks already had rough curves ground in, we were able to start working at a relatively fine grit, saving several hours of caveman work. ... Since returning from the mirror grinding seminar, I have continued to attend the NCA's mirror making class ...

Casting a Large, Light-Weight Telescope Mirror From ...

Jun 04, 2012· The proper tool for edging a mirror blank is a thick grinding wheel. Well, thick grinding wheels are very expensive, and somewhat hard to find. So I decided to make my own grinding wheel.

Joy of Mirror Making: Fine Grinding - BBAstroDesigns

Fine grinding a telescope mirror. The Joy of Mirror Making Mel Bartels Fine Grinding The goals of fine grinding are to prepare the curved mirror face so that it is ready for polishing and figuring and make any adjustments of the focal length. ... chipping the glass and ruining the blank). ...

Mirror Blank | eBay

No major defects. Slightly rough edge which will smooth out under rough grinding. I have had these heat treated mirror blanks for MANY YEARS. Got …

Telescope Mirrors, Blanks, Secondaries, Grinding …

Telescope Mirrors, Blanks, Secondaries, Grinding Materials, Testers, Aluminising, Making Advice Information.

AGI Products: Telescope Mirror Blanks

telescope mirror blanks made to your specifications If one of our standard telescope mirror blanks isn't exactly what you're looking for, Advanced Glass can custom make a telescope mirror blank to your specifications.

How I make Telescope Mirror Blanks - mdpub.com

Now that I have several blanks made, it is time to grind and polish one into a telescope 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.

Grinding with thin telescope mirror kits:

When grinding thinner blanks, be conscious of downward pressure - if excessive, it may bend the mirror blank out of shape. While this 'bending glass' effect is small, it makes proper support and regular turning of the work important.

Stellafane ATM Main Page

Amateur Telescope Making Main Page. Russell Porter Grinding a Mirror ... US suppliers of Mirror Blanks, Grinding & Polishing Supplies, and Telescope Making Supplies. Astronomy Clubs Many can offer help with your project. …

Mirror grinding - Telescope making

telescope making, mirror grinding, homemade tripod, eyepieces, astronomy . ... "In the old days" it was usual that a mirror kit is delivered with 2 glass blanks. One as the mirror, and the other as the tool. If you have such …

Mirror Grinding Machine

My Mirror Grinding Machine. ... The mirror in these photos is a 10" Corning molded Pyrex blank. I hosed it off just before I took this photo so the slurry appears kind of thin. The dark spots are the pitch that fastens the mirror to the backing plate.

SPAC Mirror Lab

The Saint Petersburg Mirror Lab is a small band of dedicated mirror grinders and telescope makers living in the Tampa Bay area of Florida. We offer a mirror making class for interested persons. ... The Pyrex blank for this mirror started out as a thick 12.5 inch that was melted in Mike's kiln and made into a relatively thin 14 inch ...

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

Mirror-O-Matic grinding machine. ... Generating the curve on a mirror blank is a tedious process when done manually or a messy (and dangerous) affair when done with machines. After reading an article by Ed Jones about using diamond pellets for …

MIRROR STARTER KITS - NEWPORT GLASS

mirror starter kits The following are starter kits consisting of items listed elsewhere in this catalog. All the mirror blanks and grinding tools have a plano surface (flat surface) unless otherwise noted.

Mirror blank kit - ATM, Optics and DIY Forum - Cloudy Nights

Jun 23, 2014· I purchased my 8" mirror making kit from Newport Glass and it included a Pyrex blank, a plate glass tool, all the grits needed from silicon carbide #80 grit for rough grinding through cerium oxide for polishing and figuring.

8" Mirror blanks and grinding kit - Cloudy Nights

2) a mirror grinding kit with all the grits, polishing powders and pitch necessary for success...$35 and if you want to make two mirrors i also have some plate glass tools for $25 each buyer pays actual shipping cost. i accept cash, checks, & paypal.

Telescope Mirror Grinding Machines | Crusher Mills, …

The 1.3m telescope mirror blank has been completed by Peter Wangsness and is now … 1.3m mirror blank – yard stick comparison . 1.3-m Mirror Grinding Machine – Photo: Mike … Mirror-o-Matic mirror making machine – ATM pages of Berthold …

Thin Telescope Mirror Grinding Advice

Grinding thin telescope mirror blanks: Thin glass mirror making techniques differ only slightly from "standard" mirror making practices. Keep these principals in mind when grinding and polishing your thin mirror blank, and you'll be fine.

Waite Research :: Home

Telescope Mirror Fabrication. Waite Research has primary mirror blanks in stock and ready to begin polishing.. Contact [email protected] for mirror sizes …

Making the 20 inch Conical Mirror | Pierre Lemay

Making the 20 inch Conical Mirror. ... The blank was a rough, cast piece of glass that would require a lot of work even before grinding could begin. The blank was almost 2½ inches thick over the central 7 inch diameter portion and then tapered out to about 1 inch at the edge. It weighed approximately 50 pounds.

Light Weight Telescope Mirror Blanks and Lens Blanks ...

Light Weight Telescope Mirror Blanks and Lens Blanks | Telescope Mirror and Lens Technology | Corning Telescope Mirror Blanks and Lens Blanks Corning has a rich history in space exploration, producing mirrors for the Hubble, Gemini, and Subaru telescopes; along with providing window glass for all of NASA's manned spacecraft …

Telescope Mirror Blanks / TelescopeMirrorBlanks.Com ...

* Thin plate glass mirror blanks are lighter than standard mirror blanks, which allows you more flexibility in designing your telescope tube assembly and mount. * When grinding a telescope mirror, you will find that plate glass takes less time to grind and polish than a mirror made from borosilicate glass.

Telescope Mirror Kits - firsthanddiscovery.com

Make your own telescope mirror! Each kit comes with a high quality telescope mirror blank and all the abrasives, polish and pitch to grind and polish it.

How I built an edge grinder for telescope mirror blanks.

I have been casting my own telescope mirror blanks for a few years now. How I do it is explained elsewhere on this web site. The casting process leaves the blanks slightly oversize, and the edges of the blanks rough, and not quite perfectly round.

Mirror blank kit - ATM, Optics and DIY Forum - Cloudy Nights

Jun 23, 2014· Mirror blank kit - posted in ATM, Optics and DIY Forum: Could somebody please point me to a source where I can purchase a kit for grinding a 6" mirror for a Newtonian type telescope? Thank you!