Mirror Grinding Blanks

Stellafane ATM: Materials & Tools

Topics on this page: Mirror Blanks, Grinding & Polishing Tools, Grits & Pitch, Storage Containers, Grinding Stands, and Miscellaneous Items. 6" & 8" Pyrex Mirror Blanks Patterns on surfaces and edges are mold marks, splotch on 6" is a grinding mark by the manufacturer.

What are the best sources for mirror blanks? - ATM, Optics ...

Jun 12, 2016· What are the best sources for mirror blanks? - posted in ATM, Optics and DIY Forum: Ever since I found Stellafanes mirror making page, Ive been itching to build my own telescope. Im going to start with a 6-8in. Newt (the classic beginning ATM project!). All I need now are the materials! I can find the yogurt containers pretty easily. For the rest of it, I had to do a little searching.

Mirror Grinding | Telescopes and Stuff

Mirror Grinding. A telescope mirror is a paraboloid, which is the surface created by rotating a parabola in 3-space around its axis of symmetry. ... The tool is a concrete disk the same size as the glass blank, surface with ceramic tiles. By continuously grinding the surface with grits and the tool, the glass becomes concave as the center is ...

How to grind a mirror for a telescope - YouTube

How to grind a mirror blank into the well-figured basis for a Dobsonian telescope. How to grind the glass, how to carry out a focus test, how to polish with ...

Joy of Mirror Making: Rough Grinding - BBAstroDesigns

31 · More importantly, the glass tool can be saved and used later as a mirror blank for a second …

Stellafane ATM Main Page

US suppliers of Mirror Blanks, Grinding & Polishing Supplies, and Telescope Making Supplies. Astronomy Clubs Many can offer help with your project. Astronomy Conventions & Star Parties A good place to look at various telescopes and chat with their owners. Mirror Making Courses & Workshops

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.

MAKE YOUR OWN TELESCOPE KITS – Sharp Vision Telescopes

The standard kit includes all the finished optical components needed to build a Newtonian reflecting telescope; namely, the primary concave mirror, the secondary flat mirror, two eyepieces of 25mm and 12.5mm focal lengths, one Barlow lens that increase the power of any of the eyepieces from 1.5x to 4x times, a 25mm diameter objective lens and ...

Dick Parker's Telescope Mirror Workshop: Cassegrain ...

I prepared four such blanks. One for the mirror, one for the tool, another for the tool pitch lap, and the fourth for the mirror pitch lap. Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror.

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.

Swayze Optical! - Home Page

Grinding and polishing the mirror is the most difficult part of making a telescope. And the most critical. Mirror-making is a hobby that has been around for many years, and many people have put their hands to the task, but it is time consuming, requiring a great deal of skill, patience and perseverence. Especially when the mirror gets big.

King Telescopes, telescope mirror blanks, using both ...

We recommend Pyrex over plate glass simply because it is much easier to build your first mirror with pyrex. The low coefficient of expansion of Pyrex makes a difference during the grinding process. Plate Glass, particularly thin blanks, can be warped by the warmth of your hand, expandings the glass into the tool, and grinds unevenly.

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

Photo #2 shows my home-made edge grinding wheel. 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. While in Harbor Freight I noticed they sell thin masonry grinding disks in packs of 10 at a very inexpensive ...

Amazon.com: telescope mirrors

Telescopic Inspection Mirror, Circular Inspection Mirror, Telescopic Inspection Mirror, Flexible Inspection Mirror 360 Rotation, with Buckle Large Round Welding Mirror (Inspection Mirror-01) 4.1 out of 5 stars 122. $7.85 $ 7. 85. Get it as soon as Thu, Oct …

Buy Telescope Mirrors - Jim's Mobile

Jim's Mobile, Inc. (JMI Telescopes) is a world renowned manufacturer of astronomical telescopes and aftermarket accessories for the amateur and professional astronomer. We manufacture telescopes and accessories such as telescope wheels, carrying cases, guiding computers, focusers, motors and motor controls and much more.

Light Weight Telescope Mirror Blanks and Lens Blanks ...

Telescope Mirror and Lens Blanks 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 missions and the …

mirror grinding making - asiarodier.fr

The purpose of rough grinding is to start to cut a spherical concave surface into the mirror blank. For a 6" mirror with a 48" focal length, the depth of the curve is 0.047". A full sized tool is rubbed against the mirror blank, with a wet grit mixture, to abrade the glass (and

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

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 that task, I wanted to try the idea on the grinding machine.

Telescope Mirrors, Blanks, Secondaries, Grinding Materials ...

TELESCOPE MIRRORS, BLANKS, TOOLS, TESTERS, GRINDING MATERIALS, POLISHING MATERIALS, ALUMINISING, MIRROR BOX, RONCHI, LASER, FOUCAULT, ... It doesn't take much more to make a Schmidt-Cassegrain mirror. Blanks are supplied with a started hole in the middle eliminating having to drill. The primary mirror is a full parabola and the secondary is a ...

mirror grinding kit grind and polish telescope mirror at ...

All our Mirror Kits contain a Pilkington Float Glass mirror blank and Grinding Tool. These arefinished with fine ground edges. 180 grade first stage ginding powder. 400 grade ginding powder. 303 grade smoothing powder. Top quality Cerium Oxide Polishing powder.

Telescope Mirrors - Orion Optics

Each optical surface is tested up to 29 times as it passes through its many processes of being turned from a blank piece of glass to a highly accurate figured mirror or lens. Below is our selection of Telescope Mirrors available to purchase and a brief description of each grade's qualities.

Telescope Making Supplies

Pyrex Mirror Blanks* Size (inches) Thickness (inches) Price US$ 1.00. 0.75. $7.95. 1.75. 1.00. $8.95 *Strain Birefringence: 10 millimicrons, or less: Very sharp and long lasting to help you form your curve fast and accur ately. You can rely on Willmann-Bell's optical grade abrasives because they are accurately graded to ensure that no larger ...

Reflector Telescope Mirrors for sale | In Stock | eBay

24 Inch Pyrex Mirror Blank - Full Thickness- Fine annealed/Flawless/No Bubbles. $5,500.00 4d 8h +$97.85 shipping. Make Offer - 24 Inch Pyrex Mirror Blank - Full Thickness- Fine annealed/Flawless/No Bubbles. 13" Glass Reflector Telescope Mirror Lens Optical Optics Laser 2" Thick. $499.99

Buy mirror blanks for telescope making

12 Inch Mirror Blanks, 3/4" Thick: $69 + S&H (16); Shipping prices are to the USA - not shipping outside the US, sorry Combined shipping is possible - Write For a complete mirror making KIT, with all abrasives, polishing compounds, pitch, and grinding tool included, please see our Buy Telescope Mirror …

Mike's Telescope Workshop - mdpub.com

This is my home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself. The blank only weighs 10 lbs, 4 …

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. The kit also contains enough pitch to make two pitch laps if you had to.

Telescope Products & Services - Galvoptics

Telescope Mirror coating - recoating - aluminising, telescope mirror blanks, polishing, grinding and pitch supplies View Basket (0) £0.00 ex VAT View Quote (0) Register Login

Large Thin Mirror Making - BBAstroDesigns

After 10 to 20 minutes, the grinding compound will exhaust itself and thin out. If you persist, the chance of creating a bad scratch or sticking is high. Clean mirror and tool and recharge. 9 micron will take you 2 hrs to 8 hrs depending on tool and mirror size. The mirror will reflect light at a low angle of graze.

tut44 Making A Mirror Grinding Tool - Asterism.org

Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." Most amateur astronomers believe, "I can buy a better telescope than I can build." ... of the mirror blank using the tool you just finished: