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Mirror grinding Telescope making

2007-2-13  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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Telescope Making Supplies willbell

2020-7-27  Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size. However, no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a first-class telescope objective. Different techniques are needed.

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Grinding Machine for Large Telescope Mirrors

2017-8-9  Grinding Machine for Large Telescope 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 reconfigured for spinning work or for stroking work.

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tut44 Making A Mirror Grinding Tool Asterism

2019-3-8  Newtonian telescope is its primary mirror. Most Newtonian primary mirrors have either a spherical or a parabolic shaped concave face. Unlike most other mirrors in your home, the mirror coating of a Newtonian mirror is actually applied to the front face of the glass, not the back. The light collected by the Newtonian primary mirror does

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Telescope Mirror Making Guide Rough Grinding

WARNING: During all stages of mirror making (including grinding, smoothing, polishing, and beveling) keep your mirror, tool, pitch lap, grit, abrasives and polish wet to prevent glass particles from becoming airborne as you work. Failing to do so can cause long-term damage to your lungs. Overview. Rough grinding is the first stage of work in making your telescope mirror.

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Telescope Mirror Grinding Machine Plans

Mirror grinding machine ebay. save mirror grinding machine to get e-mail alerts and updates on your ebay feed. + items in search results telescope mirror grinding machine design info plans original 1951. a construction manual for converting the mirror -o-matic. the original mirror -o-matic had a turntable that doubled as a slurry drip pan.

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Notes from John Dobson's Telescope Making Class

2020-7-28  Fine grinding in this class uses a smaller progression of abrasives than normal. 100, 240, 400, 1000. 8 wets each. A "wet" is the process of putting water and abrasive on the mirror and tool, then grinding the mirror against the tool until the abrasive is worn down. Use warm water for wets 400 and afterwards. Pouring pitch lap

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Newport Glass Works, LTD. Grinding, Polishing and

2014-7-21  Placing the mirror face up and grinding with a moderate "W" stroke will also move the curve toward the edge, and tends to produce a more spherical surface. Leaving the mirror grossly hyperbolic will make fine grinding difficult. Fine Grinding . We've all heard stories about fine grinding taking hundreds of

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Stellafane ATM: Grits, PolishPitch

IntroductionMaterialPolishing CompoundsPitchHow Much Will I Need?Safe HandlingStorageGrit is a generic name for the abrasive particles used with a hard tool in rough and fine grinding. Polish (or Polishing Compound) is a generic name for the abrasive used with a soft Pitch tool in polishing and figuring. Grit and Polish differ mainly in particle size and the type of tool they are used with. This page will provide reference information about these 3 key materials for mirror making.在stellafane上查看更多信息

Joy of Mirror Making: Fine Grinding

2017-4-4  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. Previously in rough grinding we deepened the center of the mirror's face either by grinding with coarse grit and a tool, slumping in a kiln over a mold, or purchasing the glass pre-generated.

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Newport Glass Works, LTD. Grinding, Polishing and

2014-7-21  Placing the mirror face up and grinding with a moderate "W" stroke will also move the curve toward the edge, and tends to produce a more spherical surface. Leaving the mirror grossly hyperbolic will make fine grinding difficult. Fine Grinding . We've all heard stories about fine grinding taking hundreds of

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mirror grinding kits automototrading

Telescope Mirror Blanks / TelescopeMirrorBlanks.Com . Please see the Buy Telescope Mirror Blanks page for low ps on plate mirror blanks. If you'd like to buy a complete mirror grinding KIT, with all abrasives and grinding tool included, please see the Buy Telescope Mirror Kits. website for the lowest ps on plate telescope mirror grinding kits.

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telescopes mirror grinding equipment,stonemill

Amateur Telescope Making Main Page Stellafane IntroductionGeneral InformationTelescope Mirror MakingOptical TestingATM Resources References A lot has changed since Russell Porter wrote those words today the \"average workman\" can afford to buy an already made telescope and Dobsonian mountings are very popular. Much is also unchanged mirror grinding techniques are very similar to

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telescopes mirror grinding equipment

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.

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mirror grinding machine design glasinloodentiffany

mirror grinding machine design. mirror grinding machine design Mirror Grinding Machine ATM, Optics and DIY Forum ,- mirror grinding machine design ,This image shows the 3D model of the overarm assembly I added to my small spin-post grinding machine (I'm building a bigger one now based on the same basic overarm design) In the one shown, the overarm is ,..

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diy lens grinding machine cafecees

Telescope How Products Are Made diy grinding high quality telescope lens The most familiar kind of telescope is an optical telescope which uses a series of lenses or a curved mirror to focus visible light Telescopes vary in size and sophistiion from homemade spyglasses built from cardboard tubes to Links . ; Welding ToolsDEKO Tools

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mirror grinding kit suppliers kunzelte.ch

Telescope Making Supplies willbellWe provide a complete line of amateur telescope making (ATM) supplies including, Mirror kits, Pyrex, abrasives, pitch and po

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4 Telescope Making Basics willbell

2003-5-7  For the 300-mm telescope (using the mount described for the 250-mm) The budget starts at about $1,500 and is divided up as follows: • Primary, secondary, and tertiary mirrors, tools, abrasives and material used from grinding to polishing: $450 • Telescope window (optional): $300 • Vacuum aluminizing or silvering of mirrors: $120

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TelescopeMakingResources LCAO

Two types of abrasives are normally used by amateurs namely silicon carbide and aluminium oxide. Silicon carbide is harder than aluminium oxide and cuts faster but it is more expensive. The grades that are normally used for mirror grinding are: P80, P120, P220 en P400. Then also finer grades like 12 and 9 micron aluminium oxide.

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What are the best sources for mirror blanks? ATM,

2016-6-12  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.

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mirror grinding kits automototrading

Telescope Mirror Blanks / TelescopeMirrorBlanks.Com . Please see the Buy Telescope Mirror Blanks page for low ps on plate mirror blanks. If you'd like to buy a complete mirror grinding KIT, with all abrasives and grinding tool included, please see the Buy Telescope Mirror Kits. website for the lowest ps on plate telescope mirror grinding kits.

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mirror grinding machine design glasinloodentiffany

mirror grinding machine design. mirror grinding machine design Mirror Grinding Machine ATM, Optics and DIY Forum ,- mirror grinding machine design ,This image shows the 3D model of the overarm assembly I added to my small spin-post grinding machine (I'm building a bigger one now based on the same basic overarm design) In the one shown, the overarm is ,..

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Telescope Mirror Grinding Machine Plans

Telescope Mirror Grinding Machine Plans. I borrowed a few ideas from the mirror-o-matic mirror grinding machine, particularly how to mount the turntable on top of the pulley.anyone building machinery for cold-working glass should have a look at the mom web site and plans.there are lots of good ideas there.the.

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homemade telescope mirror grinding machine

2020-3-31  Mirror Grinding Machine Atm Optics And Diy Forum. Sep 29 2010 Mirror Grinding Machine posted in ATM Optics and DIY Forum I have some interest in building a grinding machine for possible up to an 18 mirror but something that will also do a 6 or 8 mirror I have plans for the Mir O Matic but would like to do something a bit more modern I have some ideas about using a AC drive and a large

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mirror grinding kit suppliers kunzelte.ch

Telescope Making Supplies willbellWe provide a complete line of amateur telescope making (ATM) supplies including, Mirror kits, Pyrex, abrasives, pitch and po

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Dick Parker's Telescope Mirror Workshop: Supplies

2010-8-14  Mirror Kits. Complete mirror making kits may be purchased from Newport Glass or Willmann-Bell. A bit more expensive but the mirror blank, tool, abrasives, pitch, and cerium oxide are packaged. Please see the table of mirror kits for pricing information.

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8 Inch Telescope Mirror Kit Firsthand Discovery

Save money and time by purchasing a telescope mirror kit. This kit includes an 8 inch telescope mirror blank, all the silicon carbide grits, white aluminum oxide powders, gugolz pitch (picture shows 2 lb container), and cerium oxide polish you will need to grind and polish an 8 inch telescope mirror all bundled in one spot. This will get you on a great start to building your own telescope.

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Buy mirror blanks for telescope making

2016-9-14  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

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What are the best sources for mirror blanks? ATM,

2016-6-12  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.

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Mirror blank kit ATM, Optics and DIY Forum

2014-6-23  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!

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