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, …

The M-o-M is a marvellous machine due to its simplicity and yet refined design. It is extremely flexible accommodating mirror sizes from 4 inch up to 20 inch (with slight modifications) and can be used for all three steps necessary in producing a mirror. That is you can use it to grind, polish and figure your optics.

Re: Building a fixed post mirror grinding machine. I I had a nice piece of 3/4" stainless dowel that was begging to be used. So I bought a cheap pillow block to provide the locator for the metal dowel, and then drilled the overarm to fit. These pillow blocks are $8 and come complete with a locking collar - great deal.

A grinding machine relieves the labor, but is not necessary. ... April 1996, Sky and Telescope magazine starting on page 75 carries an article by Toshimi Taki, analyzing mirror cell design to support thin mirrors. ... Even first time large thin mirror grinders, ...

The Machines: Documentation: Information for ATMs Zip archive of Mirror-o-Matic Yahoo Groups (2000-2019) 307 MB Contact Dennis ...

This is as interesting to me even if I were to grind some much smaller mirror say 10-12 inches as it would be to scale up to whatever size blanks could ever be found in the future. I've glanced through books on telescope making and although the nature of the project interests me, spending many hours hand grinding a mirror is difficult to justify with a busy life and busy …

Telescope Formulas and Design Comparator. This page has formulas for many telescope and mirror parameters. It will calculate parameters for two different telescope designs and compare the results for you. It provides data to help in selecting a telescope, and also provides information necessary for mirror making and testing.

Mirror-o-Matic and fixed position tool grinding - posted in ATM, Optics and DIY Forum: I plan on using a Mirror-o-Matic type grinding machine soon. The fixed position technique Mark Cowan uses is one I’m very interested in. Mark has spoken about this to me and on this forum, as recently as today in the thread “Grinding my 18 f/6†.

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.

telescopes mirror grinding equipment,stonemill essentials aldi. telescope grinding machine optical instruments. Indeed, between 1513 and 1517, he imagined machines to grind and polish telescope mirrors, which, at the time, were made of bronze. telescopes mirror grinding equipment how to make a telescope mirror grinding machine Grinding Mirror ...

Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built this mirror grinding machine from scratch.

Telescope Mirror Grinding Machine Products Suppliers. After experimenting with copper and tin alloys for the metal reflecting surface and developing his own steam-driven mirror grinding machine, this telescope was completed in 1839. Optomechanical tests and performance results of the SIRTF cryogenic optical system.

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 MoM designs finally inspired me to just get up and do it Over the years, I'd been collecting motors, gear boxes, pulleys, etc

The machine is shown grinding a 300 mm mirror.How to build a tachometer:

Mechanical assembly is complete. The machine could start grinding now. I still need to build the electronics, and then there's painting and finishing.

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. With such a telescope, Saturn with its rings are stunning, the Horsehead stands out in the midst of sweeping nebulosity.

Basically there are two types of grinding/polishing machine. The 'traditional' type which involves the mirror rotating at a relatively slow speed, a few rpm for a big mirror (16-20 inches) with the tool moving across the mirror, from side to side, at a higher rpm depending on the size of the mirror and/or tool.

Types of mirror grinding machines - posted in ATM, Optics and DIY Forum: Hi to all, I am planning to make a mirror grinding and polishing machine but i have limited knowledge about these machines. Because of this i have some questions to someone who has some experience with those machines; - Some machines have fixed supportes and some of them …

You may notice that many commercial telescope advertisements proclaim they use "Hand Figured Optics" - in fact this is one of the best and least expensive ways to get an accurate surface on a mirror - most machines just can't hold the tolerances necessary, and any good telescope optic, including the mirror you could make in your kitchen, should be hand figured.

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 …

Well, that depends. Mostly on the mirror size you wish to grind, and the prices of the local market. In the US, telescope mirrors are the cheapest. A decent 6" (150 mm) mirror can be bought for under 100$. In Europe, prices are usually twice, if not three times that.

Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." ... Telescope mirrors are relatively thick. The concave shaped face is made by repeatedly rubbing the primary glass blank over another blank called the "tool". The tool is equal in diameter to the primary.