telescope grinding machine

telescope mirror grinding / polishing machine with

Feb 15 2016 0183 32 The machine is shown grinding a 300 mm mirrorHow to build a tachometer florinmyiporg/blog/making-tachometer-grinding-polishing-machine-telescope-m...

Grinding a 25

Dec 16 2014 0183 32 Gordon started with a 2 thick telescope mirror that weighed about 70 pounds By thinning the blank he s lightened the mirror by about 20 pounds This v...

Amateur Telescope Making Main Page

Hundreds of links to all aspects of telescope making on the internet ATM Material Suppliers US suppliers of Mirror Blanks Grinding Polishing Supplies and Telescope Making Suppli Astronomy Clubs Many can offer help with your project Astronomy Conventions Star Parties...

Large Thin Mirror Making

A grinding machine relieves the labor but is not necessary A 24 is the largest you can comfortably do solo Sky and Telescope magazine starting on page 75 carries an article by Toshimi Taki analyzing mirror cell design to support thin mirrors We choose 220 grit to start because the grinding particles are small enough to move onto...

Mirror grinding

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 mirrorIt 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...

Newport Glass Works LTD Grinding Polishing and Figuring

Thin Telescope Mirrors Abridged from an article appearing in Telescope Making 12 Provided Courtesy of Astronomy Magazine There are several ways to support the grinding and polishing machine turntable but first make sure the turntable itself is rig It must not bend If your machine lacks a sturdy turntable one way to...

jeffbaldwinorg

Fixed-post machine grinding is where the mirror is on a turntable rotating around 20 PRM speeds vary and a 75 tool is on top They are already curve-generated The tool is hanging over the mirror by 1/6 the diameter of the tool or about 1/8 diameter of the mirror and is fixed in this position...

Mel Bartels Amateur Telescope Making

The IAU named asteroid 17823 Bartels discovered 1998 by JMRoe in recognition for my contributions to amateur astronomy Making is the Key to Knowing A telescope mirror is arguably the most accurate surface made by human or machine Amazingly you can grind a mirror by hand and make a telescope with simple hand tools...

Grinding/Polishing Machine Pierre Lemay

Pierre Lemay Amateur Astronomer and Telescope Maker Menu Skip to content...

Telescope Making Supplies

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...

Telescope Mirror Making Part 2 Hogging to depth

Jul 11 2012 0183 32 This is part 2 of my video series documenting grinding and polishing a 125 inch telescope mirror I m using a spin or fixed post grinding machine This vi...

mirror grinding machine for sale

Mirror Grinding Machine telescope mirror grinding machine based on Dennis Rech s M-o-M 20 Read more SkyBadger - Mirror Grinding Machine I have a Mirror-o-maticmirror making machine that I swapped with MikeMS for a Newtonian telescope that was no use to me The grinding machine had been built to the design of the mirror-o-matic design of...

Mike s Telescope Workshop

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 125 inch diameter 15 inch thick light-weight honeycomb-back telescope mirror blank that I made myself...

Parabolizing a Telescope Mirror

- Myron Emerson s Amateur Telescope Mirror Making - GAP 47 s machines summary - David Harbour s Understanding Foucault - Albert Highne s Portable Newtonian Telescopes - Neale E Howard s Standard Handbook for Telescope Making - Albert G Ingall s Amateur Telescope Making Volumes 1-3 - H Dennis Taylor s The Adjustment and Testing of Telescope...

How I make Telescope Mirror Blanks

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 I ll post an update once a mirror is completed...

Constructing a Grinding Machine for large apertures

Dec 01 2013 0183 32 Unfortunately my local astronomy club has no-one with experience with ATM-ing Given how interested I am on the subject prospective Astronomy major I thought it would do me good to start with building a telescope grinding machine to allow me the capability to create multiple mirrors over the next few years as a form of immersion in the craft...

Stellafane ATM Materials Tools

The Tools Grinding Polishing You will need two tools A hard tool for rough and fine grinding and a soft tool or pitch lap for polishing and figuring Traditionally the pitch lap was made on top of the grinding tool We recommend using plaster disks for tool...

How I built an edge grinder for telescope mirror blanks

I eventually decided I needed to build a dedicated edge grinding machine This is how I did it I started the build by making a sturdy frame for the unit out of 2x4 lumber and 3/4 inch thick plywood Wheels were added to the bottom of the unit so it can be wheeled outside The grinding...

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 astronomers believe I can buy a better telescope than I can build Neither is actually correct For many decades now amateur...

How I built an edge grinder for telescope mirror blanks

I eventually decided I needed to build a dedicated edge grinding machine This is how I did it I started the build by making a sturdy frame for the unit out of 2x4 lumber and 3/4 inch thick plywood Wheels were added to the bottom of the unit so it can be wheeled outside The grinding operation will be messy so it will need to be done outside...

Telescope mirror grinding machine / pottery wheel

Up for sale is my telescope mirror grinding machine / pottery wheel I used this machine to grind a telescope mirror and it worked great No more walking around the barrel Could be adapted with an overarm for a fully automated grinding machine 125 shipped to CONUSA Includes 3D printed mirror holder mirror blank not included as seen in...

GRINDING A TELESCOPE REFLECTOR WITH TOOL

GRINDING A TELESCOPE REFLECTOR WITH TOOL-GRINDING DEVICE By George F Tauchmann Grinding telescope reflectors of 15-inch diameter and over makes it necessary to employ a motor-driven turntable Small mirrors are generally ground and polished by rotating the tool fastened to the turntable and working the mirror blank by hand...

Strasbaugh polishing and grinding machine Astromart

Strasbaugh polishing and grinding machine You wont find very many of these around Strasbaugh is the premier manufacture of machines used by the professionals This machine is solid no plastic or wood You can adjust the spindle and eccentric speed with a turn of a knob while running It makes mirror grinding a pure joy...

Ritchey Mirror Grinding Machine National Air and Space

George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay Wisconsin in the late 1890s Under the sponsorship of George Ellery Hale the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope...

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 Most of them came from industrial junk yards...

Mirror Grinding Machine Hackaday

Sep 26 2006 0183 32 The true test of the amateur astronomer is building their own telescope Grinding and polishing your own mirrors is a long arduous process Instead...

Grinding Machine for Large Telescope Mirrors

Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches 11m in diameter By slipping on and off a couple of belts the machine can quickly be reconfigured for spinning work or for stroking work The machine can also work smaller mirrors if the drip pan is moved to the fast shaft on...

Machine grinding a 25 telescope mirror

Nov 16 2012 0183 32 Grinding 500 grit on a 25 f/30 meniscus mirror Tool is a 19 glass tiled stone tool with about a 3 overhang and about 37 pounds of weight...

Amateur Telescope Making Main Page

Oct 15 2012 0183 32 Page 1 of 2 - Making my own fixed post mirror grinding/polishing machine - posted in ATM Optics and DIY Forum Hey guys Im thinking of making my own fixed post mirror grinding/polishing and curve generating machine Ive got loads of questions regarding the design so Ill just start firing away Do I need an eccentric moving tool to be able to polish a mirror spherical...

Telescope Mirror Grinding Machine Products Suppliers

The process was performed at Cranfield University Precision Engineering on the BoX grinding machine Figure 4 left designed for rapid and accurate grinding of large telescope mirror segments 15 X-Ray Telescope Mirrors-Materials Manufacture Tolerances And Metrology...

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