metal aluminium primary mirror making atm optics and diy f

DobSTUFF - Telescope and ATM Components

--8" to 12" 'simple' 3-point all Baltic birch mirror cell, $99.00 plus $15 shipping. Silicone included. Mirror Cells: All aluminum for mirror boards and truss dobs. Baltic birch TAILGATES available. This example is a 6-point flotation cell for mirror 12"-16" in diameter. Other sizes available.

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ATM and DIY Projects [Archive] - Page 3 - IceInSpace

[Archive] Page 3 A place to discuss all aspects of Amateur Telescope Making, Do-It-Yourself mods, projects and DIY accessories ATM and DIY Projects [Archive] - Page 3 - IceInSpace IceInSpace > Equipment > ATM and DIY Projects

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Telescope Mirror Blanks / TelescopeMirrorBlanks.Com ...

Telescope Mirror Blanks Providing telescope mirror blanks and kits to telescope makers. Mirror blanks are individually tested for internal strain. Plastic protractor inserted under a 6 inch mirror blank during a stress test, to illustrate what stress would look like - if there were any present.

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Recent developments in the production of spin-cast epoxy mirrors .

Development of a 16-inch f/4.0 parabolic mirror has been undertaken to adequately define scale-up fabrication procedures for 1m and 1.4m mirrors. 16-inch mirrors .

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Homemade 12.5 Inch Dobsonian Telescope : 5 Steps (with Pictures) - Instructables - Yours for the making - Instructables

Jul 25, 2008· The primary, secondary, spider and secondary holder—Discovery Optics. After researching several possible sources for a primary mirror, I decided to order an f/5 12.5 inch mirror from Discovery Optics. The company has a reputation for excellent optics, and it was neither the most expensive, nor the least.

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An amateur binocular maker's Web site

Bill Thomas, a fellow foothills ATM, made the primaries for the binocular. Bill's focus is mirror making; he has developed the Slit Image Test, which combines the best of the Lateral Wire Test (LWT) and the Caustic test. The two mirrors have Strehl ratios of .98 and .97, or at least 1/10 wave. Nearly perfect!

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Lockwood Custom Optics - Notable Projects

12" f/4 cast cellular primary mirror, weight: 3.5 lbs! This very lightweight primary mirror was made for a private client, and can be seen in this installment of "In the Shop". It weighs only 3.5 lbs, a fraction of what a conventional 12" solid Pyrex blank at say, 2.25" thick, would weigh.

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800mm - the mirror - DIY Astronomer - Stargazers Lounge

Jun 10, 2020· The onset was pretty straightforward with an 'if we are doing this we are making the mirror'. And that sorts out the make vs buy, I suppose. As of now, the only two things decided so far are the diameter -at 800mm- and the f/3.3 - of course we can accommodate some variance.

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The Telescope Mirror Coating - ATM optical coating

Aluminum coating is done by Aluminum Coating in a high vacuum tank. Aluminum metal is evaporated from a wire near the bottom of the tank and coats the mirror which is being rotated at the top of the tank. A very thin SiO transparent coating is coated over the aluminum coating. The mirror never becomes hot.

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40+ Dobsonians ideas | telescopes, diy telescope, telescope

Gluing a 12.5 Mirror - posted in ATM, Optics and DIY Forum: So I have started refurbishing my 12.5" String Truss Dob as I change the mirror from f/6 to f/5. So I have taken the mirror box completely apart and have been sanding and refinishing. I have also been taking a look at my mirror .

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ATM and DIY Projects [Archive] - Page 3 - IceInSpace

[Archive] Page 3 A place to discuss all aspects of Amateur Telescope Making, Do-It-Yourself mods, projects and DIY accessories ATM and DIY Projects [Archive] - Page 3 - IceInSpace IceInSpace > Equipment > ATM and DIY Projects

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Pin on Astronomy

Apr 13, 2019 - Stellafane External Links provide links to related information on Amateur Telescope Making, Mirror Making, Optics, other Astronomy clubs and local area links to the Springfield, Vermont area.

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Mike's Telescope Workshop - mdpub

It is an 8in. f/4.5 Newtonian scope on a ball mounting. The truss design reduces the weight of the upper section and helps keep the center of gravity low. The short focal length keeps the eyepiece low to the ground even at zenith, making the Cookie Jar a very "kid friendly" telescope.

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Cleaning Optics - Methyl Alcohol 99% (CH3OH) - DIY ...

Jun 18, 2016· DIY Astronomer ; Cleaning Optics - Methyl Alcohol 99% (CH3OH) ... I also noticed that the primary mirror had been turned slightly and the place where the clamps were is much cleaner than the rest of the mirror. ... water does attack the exposed metal. Fortunately for astronomers, aluminium is always covered with a continuous, self-repairing ...

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Grind and Polish a Dobsonian/Newtonian Telescope Mirror With Hand Tools : 8 Steps (with Pictures) - Yours for the making

The big mirror is my friend's 12" (I think - can't remember exactly) Cave Optics mirror, the smaller one is his secondary mirror. They make a dam with tape and pour the muriatic acid on and leave it until the entire coating dissolves, dump it off and rinse in water then coat as described. It took almost a full 8 hours for the coating to dissolve.

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New design for highly durable infrared-reflective coatings ...

Dec 22, 2017· Traditionally, after the high infrared-reflective metal films such as Al, Ag and Au are deposited (step 1), transparent, hard metal oxide layers, such as SiO 2 and Al 2 O 3 26, 27, are deposited ...

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Stellafane ATM: Measuring Sagitta

For example, a 6" f/8 mirror has a target sagitta of 0.047". I would select the 0.024" and 0.023" which have a total thickness of 0.047" to measure this gap. Put the mirror face up on a table. Hold the steel rule vertically across a diameter of the mirror (i.e., make sure it passes over the center of the mirror).

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Telescope Making Links - Designs and Techniques | STAR ...

Large Thin Mirror Making by Mel Bartels ... Scope Plans My First Scope My Mini ... Testing a mirror at an ATM session. Jupiter April 2014, C8, 2 meter direct focus composite of 400 frames using a Point Grey USB3 video camera. Dan Pontone with Club 25" Telescope. Gavin Warnes and his 6" Dobsonian Travel Scope.

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DIY Newtonian reflection astronomical telescope Primary Mirror .

The mirror blank is made of K9 material and some high boron silicon materials. The thickness of the lens is 1/8-1/10 of the diameter. The aluminum coating is added with a silica protective film, and the coating can be used for 8-10 years under moisture-proof storage.

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The Telescope Mirror Coating - ATM optical coating

Aluminum coating is done by Aluminum Coating in a high vacuum tank. Aluminum metal is evaporated from a wire near the bottom of the tank and coats the mirror which is being rotated at the top of the tank. A very thin SiO transparent coating is coated over the aluminum coating. The mirror never becomes hot.

Get price

New design for highly durable infrared-reflective coatings ...

Dec 22, 2017· Traditionally, after the high infrared-reflective metal films such as Al, Ag and Au are deposited (step 1), transparent, hard metal oxide layers, such as .

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Teeter's Telescopes High-Quality Truss-Dobsonian Components

Antares Optics 1/20 P-V Secondary Mirrors with 96% enhanced reflectivity aluminum and SiO overcoat. Each mirror is supplied with a Zygo test report. Antares has the following to say about their mirrors, "All Antares Optics secondary mirrors are manufactured to an ultra radical surface accuracy. Each piece is tested before and after the coating ...

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Meniscus primary mirror - ATM, Optics and DIY Forum ...

May 06, 2017· Meniscus primary mirror - posted in ATM, Optics and DIY Forum: Id like to build a fast light weight 16 Newtonian telescope based on a meniscus mirror. Using the saggita calculator, I would like a f3 which brings the overall facial length to approximately 48. I would build the tube out of carbon fiber (I have a vacuum pump) to also keep the weight down.

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DobSTUFF - Testimonials

The mirror is from Hubble Optics with a strehl ratio of .9987 and sits on a custom made 6-point floatation aluminum mirror cell optimized with Plop. The telescope includes a 2" 2-speed Crayford Antares focuser and a Destiny "professional" curved vane spider.

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A Simple Double-Plate Mirror Cell for Your Reflector - Gary Seronik

May 08, 2009· About the only mistake you can make here is to smear too much on the back of the disk — you want the mirror to be supported on three evenly spaced pads. Now gently lower the primary mirror onto the cell. The mirror will come to rest on your spacers, and the silicone will spread out into tidy disks.

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Diy telescope için 30+ fikir | astronomi, teleskop ...

Page 1 of 2 - My new 12.5 hybrid Dobsonian - posted in ATM, Optics and DIY Forum: Last winter I decided it was time I built a telescope. It would be my first. I read K&B and following conventional wisdom decided on an 8 dob.

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A Simple Double-Plate Mirror Cell for Your Reflector ...

May 08, 2009· About the only mistake you can make here is to smear too much on the back of the disk — you want the mirror to be supported on three evenly spaced pads. Now gently lower the primary mirror onto the cell. The mirror will come to rest on your spacers, and the silicone will spread out into tidy disks.

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ATM and other DIY projects - harpoint-observatory

If you look around in the literature and also in the internet, then the amateur self-made instruments (ATM) in the last 50 years has hardly developed. There are indeed bigger telescopes built today than 50 years ago, other materials are used, other motor-types and it has been added some electronic whistles, but basically come still the same old and supposedly proven designs .

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Homemade Telescope Making - Google Sites

The equipment is much easier to make and interpreting test resutls is more simple. After completing the 14.5 inch mirror I refigured my old 8 inch f/8 mirror using this test method. Sources of telescope and mirror making supplies: Surplus Shed All kinds of small glass blanks, inexpensive eyepieces, lenses, small telescope mirrors, and other ...

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The Telescope Mirror Coating - ATM optical coating

Aluminum coating is done by Aluminum Coating in a high vacuum tank. Aluminum metal is evaporated from a wire near the bottom of the tank and coats the mirror which is being rotated at the top of the tank. A very thin SiO transparent coating is coated over the aluminum coating. The mirror never becomes hot.

Get price

ATM - Pinterest

Page 1 of 2 - My new 12.5 hybrid Dobsonian - posted in ATM, Optics and DIY Forum: Last winter I decided it was time I built a telescope. It would be my first. I read K&B and following conventional wisdom decided on an 8 dob.

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My amateur telescope making page - USA - XMission

The scope is easy enough to lift that I can carry it into fields away from other cars and people. Here is the finished product. The strange looking guy behind the scope is me. Notice how small the mirror box, ground board and secondary cage is. The bearings come off to fit in the trunk of a .

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Hand Grinding a Telescope Mirror | Telescope, Hand ground ...

May 31, 2014 - This Pin was discovered by Rick Tomlinson. Discover (and save!) your own Pins on Pinterest

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ATM and DIY Projects [Archive] - Page 3 - IceInSpace

[Archive] Page 3 A place to discuss all aspects of Amateur Telescope Making, Do-It-Yourself mods, projects and DIY accessories ATM and DIY Projects [Archive] - Page 3 - IceInSpace IceInSpace > Equipment > ATM and DIY Projects

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