Mirror-Making Workshop - Texas Star Party

You should provide your own materials including mirror, mirror tool and pitch lap, abrasives, etc. We will have some instruction sessions, about an hour or more each day on: Set up & rough grinding: includes Getting set up/overview, Making the Tile Tool, Rough grinding

Joy of Mirror Making: Rough Grinding - BBAstroDesigns

The curve is ground into the mirror face using a grinding tool. The curve is pre-generated for you. The curve is created by slumping the blank in a kiln over a mold. Here are 42 inch [107cm] and 30 inch [762cm] mirrors slumped and annealed to F2.8 ready for fine grinding.

4 Practical and Convenient Mirror Alternatives

These mirrors are considered to be safe to use in more dangerous spots and can come in handy for various purposes. If you need a mirror to put inside of your child’s room, you may want to go with a plastic mirror. Many parents feel concerned about glass mirrors

Chromium Industries, Inc. v. Mirror Polishing & Plating Co

Thomas Nalband is Vice-President of Mirror and Roll Grinding, and is the President of Plasma. In his deposition, he stated that he participated in management decisions at all three corporations. Eugene Nalband, Thomas Nalband''s brother, is the President *549 of Mirror and the Treasurer of Roll Grinding and Plasma. The Nalband brothers own stock

schools

2020-10-10 - Explore 10''s board " schools ", followed by 943 people on Pinterest.

tiletool.doc - Grinding Tools without Epoxy Richard

Grinding Tools without Epoxy Richard Schwartz Star Fleet Engineering Hawthorne California rev. Septeer, 2000 rev. Septeer 2001 This article is to explain how to make tile grinding tools and dental stone pitch lap foundations without epoxy and to also explain WHY this is a good way to do it. A common problem that beginners experience when making telescope mirrors is the failure of the edge

How to Aluminize Telescope Mirrors -

Ensure you enable subtitles (click on "CC" bottom-right) to help where the sound is not audible. Modern optical telescope use mirrors and very few lenses. Un

Mirror grinding - scope making

A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank, but in my opinion, annealed plate glass is better for this first, "learn and practice" mirror.It is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical (visible at

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Chromium Industries, Inc. v. Mirror Polishing & Plating Co

Thomas Nalband is Vice-President of Mirror and Roll Grinding, and is the President of Plasma. In his deposition, he stated that he participated in management decisions at all three corporations. Eugene Nalband, Thomas Nalband''s brother, is the President *549 of Mirror and the Treasurer of Roll Grinding and Plasma. The Nalband brothers own stock

schools

2020-10-10 - Explore 10''s board " schools ", followed by 943 people on Pinterest.

Kits building making homemade telescopes schools amateur

The BYOT kits have Hot-line support for any questions or problems you may have. The kits are supplied to schools and are designed for 12 year olds and up. If mirror grinding and polishing doesn''t sound like your cup of tea, the mirror can be purchased separately to the rest of the telescope kit.

Building making homemade telescopes amateur Dobsonian byot

The kits are supplied to schools and are designed for 12 year olds and up. If mirror grinding and polishing doesn''t sound like your cup of tea, the mirror can be purchased separately to the rest of the telescope kit. For more information and details of telescope parts and prices, visit our web site at:

Telescope mirror grinding on Vimeo

Fine grinding the Dream Cellular 62 cm f/3.4 Cassegrain primary spindle grinder. The grinding tool is glass tiles cast in dental stone. The grit at this

Technical Information

as edge-grinding, sandblasting or acid-etching, can cause premature failure. TEMPERED GLASS Fully tempered glass is approximately four times stronger than annealed glass of the same thickness and configuration, and residual surface compression must be over 10,000 PSI for 6mm, according to ASTM C

Rough Grinding a 20" Quartz Telescope Mirror on the Fixed

Mar 07, 2010· 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

[email protected] | Newbie question: polsim and

Apr 25, 2020· The end result was a cracked mirror from the mirror sticking to the tool during fine grinding and driving it loose with a 4 X 4. The crack was around an 1" deep into the pyrex. I tried to finish the mirror but ended up with a severely turned edge due to not channeling the tool.

Mirror Grinding - School Project - DIY Astronomer

Mar 02, 2012· As its just RS-232 data going over the cable (very slow bit-rate compared to USB etc.) it should work at over 100m I would have thought. Alan

Technical Information

as edge-grinding, sandblasting or acid-etching, can cause premature failure. TEMPERED GLASS Fully tempered glass is approximately four times stronger than annealed glass of the same thickness and configuration, and residual surface compression must be over 10,000 PSI for 6mm, according to ASTM C

Mirror Grinding - School Project - DIY Astronomer

Mar 02, 2012· As its just RS-232 data going over the cable (very slow bit-rate compared to USB etc.) it should work at over 100m I would have thought. Alan