mirror grinding success

Leonardo Mirror Grinding Machine

Leonardo mirror grinding machine (or lens grinding machine) is a masterpiece of mechanical engineering among his inventions. It has several gears in mesh at all times and also has several variable settings built into it. This mirror grinder was most likely designed by Leonardo while he was either investigating the different ways that light ...

Mirror Grinding Machine Plan

Mirror Grinding_grinding mill&grinding machine&grinder. My Mirror Grinding Machine … I quickly discovered that changing the original plans was not easy, so I hacked out a 3-D drawing program to help me visualize it. 24" Mirror Grinding and Polishing Machine – IceInSpace.

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2022-7-26 · ubuntu | |,、Linux,。 TUNA 。

Telescope Mirror Grinding Machine

Telescope mirror grinding machine Mirror making and optical testing … The images below show the completed grinding machine in it''s new garage in October 2001. GrindingPolishingMachine – LCAO. Telescope Making. Telescope Mirror Grinding and Polishing Machine. After I had made the 41-cm telescope mirror by hand I had decided that I needed a ...

First time mirror grinding

 · After about 15years of thinking about it, I finally got started on my first mirror grind today. I bought a used mirror grinding kit from AstroBuySell which includes a 6" 25mm plate glass blank, matching glass tool, pitch, selection of grits etc. The kit appears to be a 30 year kit from Beacon Hill Telescopes.

How to do mirror finish grinding by a grinder

2021-3-8 · Mirror grinding is a grinding that the surface roughness of the workpiece is Ra< 0.01μm, and the light is like a mirror after grinding, so it can be clearly photographed. The flatness of the grinding surface is not greater than 3μm /1000mm. The surface machining of high precision and high added value parts requires mirror grinding. 2. Grinder ...

Basics of Mirror Grinding

2009-2-2 · The initial rough grinding process uses grit sizes of 60, 120, and 180 to carve out the basic spherical cavity. The mirror is then fine ground with grits of sizes ranging from 220-900. In both grinding processes, the grit is harder than the mirror blank and tool, resulting in a concave mirror and complementary convex tool.

Telescope Mirror Blanks Manufacturer and …

AGI also supplies Schott SUPREMAX 33 mirror blanks. SUPREMAX 33 is a borosilicate Pyrex equivalent, and is an excellent alternative for telescope mirror blanks. Our blanks have the following standard characteristics: Precision …

Study on a 5-axis precision and mirror grinding of glass …

2016-10-1 · Fig. 3 shows the envelope grinding along with tool posture angle θ and envelope trace height h e.On the parallel YZ-sections, the CL and the angle ϕ are driven by the linkage of Y-axis and Z-axis translations and A-axis rotation according to,,, .The tool path interval f x is driven by the differential translation of X-axis. The envelope trace between tool paths is …

Joy of Mirror Making: Fine Grinding

2022-6-19 · Run each grit size for about two hours; longer for large mirrors larger than 12 inches diameter. A fine grinding session is called a ''wet'' and runs five to ten minutes long. Start with a thoroughly washed mirror and tool, placing the …

Achieving a Mirror Finish | Norton Abrasives

2021-8-9 · reating a process that requires a "mirror finish" is a daunting task, to say the least. Whether you are working with brass door hardware, beautiful hunting or kitchen knives, zinc plumbing hardware, aluminum light reflectors, truck running boards, or aluminum high-end wheels, it is challenging to get a metal surface to the point where you can see a reflection.

Mirror Grinding

 · Page 1 of 3 - Mirror Grinding - Take A Class Or DIY? - posted in ATM, Optics and DIY Forum: Ive been interested in grinding/polishing my own Newt mirror for a long time but dont know how to get started. ... The quickest path to success would be under the guidance of a knowledgeable mentor. An established local club would be the best bet. I ...

Fast Mirror Grinding & Polishing

2001-11-15 · The mirror ended up with a very smooth, zone free, nearly spherical figure ready for final figuring. Figure 1: Polishing pads applied to a 9 inch grinding tool. Another local ATM has also tried the polishing pads with abrasive and …

What are the mirror grinding processing methods?

1. What is mirror grinding The surface roughness of the workpiece after grinding is Ra0.01µm, it is as mirror-like and can be imaged clearly, so it is called mirror grinding. The flatness of the grinding plane is not more than 3µm/1000mm. The surface processing of high-precision, high-value-added parts requires mirror grinding. 2.

(PDF) Precision Surface Grinding of Silicon Carbide

2016-12-19 · This paper presents surface grinding of SiC using resin bonded diamond abrasive cup. wheels to asses s the cutting performance of diamond grits on the roughness and morphology of the ground work ...

Mirror grinding book recommendations Please

 · Also if there are any useful web resources people know about that would be great. I know about Stellafane which is great and this helped me put together an OTA having bought a pre made mirror set. Any help and advise very much appreciated . P.s. I take it Galvoptics is the best place to get my mirror grinding kit from? Chris. Edited July 28 ...

New Mirror Grinding Super-finishing Wheel "Mr.

Bond. From Cutting to Grinding. From Loose Grains to Fixed Grains. The Mr. Neo Lapper stone has an extremely uniform structure that is ideal for mirror finishing and enables consistent polishing without loading. It is made using a unique …

Mirror Grinding Machine | Hackaday

2006-9-26 · September 26, 2006. The true test of the amateur astronomer is building their own telescope. Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by ...

Why Grinding Toward Your Goals Is Keeping …

2019-4-23 · Working hard (or grinding) in one area simply isn''t an efficient use of time and energy, most of the time. In fact, it''s the polar opposite of productivity. Being productive requires you to thoughtfully approach tasks and strategize …

tut44 Making A Mirror Grinding Tool

2019-3-8 · Newtonian mirror is actually applied to the front face of the glass, not the back. The light collected by the Newtonian primary mirror does not pass through any glass until it reaches the eyepiece. It simply reflects off the curved concave mirror face which focuses all the light collected to a point known as the "focal point" of the mirror.

How to do mirror finish grinding by a grinder

2021-3-8 · Mirror grinding is a grinding that the surface roughness of the workpiece is Ra< 0.01μm, and the light is like a mirror after grinding, so it can be clearly photographed. The flatness of the grinding surface is not greater than 3μm /1000mm. The surface machining of high precision and high added value parts requires mirror grinding. 2. Grinder ...

how to make a telescope mirror grinding machine

Dick Parker s Telescope Mirror Workshop Cassegrain, The Cassegrain Project The Cassegrain telescope is probably the first type telescope that the ATM would like to make after mastering the basic Newtonian telescope, The primary is a concave mirror and the secondary is convex and placed inside the primary focus, This optic is small enough that a lens grinding machine could …

J-H Proty Wu''s "Amateur Telescope Maker (ATM)" page

Mirror Grinding. Ricardo Dunna''s pages on mirror grinding including software and Focault pictures; Berthold Hamburger''s ATM pages - From mirror grinding to his own observatory; John Nichol''s ATM site - Describing the making of a 19-inch plate glass mirror; Bill''s illustrated site on building his 14.5 inch telescope from scratch

The History of Mirror: Through A Glass, Darkly

It was a belabored and imprecise process, resulting in mirrors of dim reflection. As attributed to Paul the apostle, "For now we see through a glass, darkly.". Around 500 AD, man began to create somewhat clearer and more reflective …

Mirror Surface Finishing | Large-size Machining + Surface …

Interpretation of term. Mirror surface finishing is the grinding method to polish the metal surface into mirror-like surface by vertical grinding or buff grinding. In order to polish the surface into mirror-like surface, face roughness as well as face accuracy as swelling becomes required. The Company classifies the surface roughness state into ...

Building a fixed post mirror grinding machine

 · I made the overarm from 1.25" steel tube, cut and fitted to size. Butt-welded, cleaned up with a grinder, painted and trial fit. It seems too low, but I will build sandwiched plywood layers, glued together and put everything up on that. You do not have the required permissions to view the files attached to this post.

Mirror grinding book recommendations Please

 · Hi folks . Its been ten years since I first read up on grinding mirrors then the idea got placed on the bucket list and shelved. I have been thinking about the idea quite a bit again over the last couple of years, and now my observatory is pretty much complete I think I''m ready to give mirror grinding a go I must say reading some of the Dob build threads on SGL have also …

Precision and mirror micro-grinding of micro-lens array on …

2015-12-2 · Second, the precision and mirror micro-grinding along with the form errors of freeform micro-lens array was observed on the base of the transfer from brittle-mode removal to ductile-mode removal. Finally, the photovoltaic properties were experimentally measured. It is shown that the freeform micro-lens array increases luminous flux by 53.8–54 ...

Mirror grinding machine-runout

 · Page 1 of 2 - Mirror grinding machine-runout - posted in ATM, Optics and DIY Forum: I am in the process of making a fixed post mirror grinding machine, big enough for a 20 inch mirror. I have now got the motor, pulleys, two shafts and turntable all together and working. The turntable rotates at around 25 rpm,which I think should be OK. If I put a dial indicator on the …

Stellafane ATM:Mirror Making Myths

A 6" or 8" mirror should take about 40 to 80 hours of effort. While this is a non-trivial amount of time, the mirror can be completed in a few months, and certainly within a year. Most people work one to three hours a day on their mirror about one or two times a week. Homemade Mirrors are of Inferior Optical Quality.

Telescope Mirror Grinding Machines

Mirror Grinding Machine, G. W. Ritchey | Flickr – Photo Sharing! … grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory. The grinding machine …

16" first time mirror grind?

 · I can only support John''s comments here. A 16" f/5 has a sagitta of 5mm so the glass at the centre of your mirror will only be 20mm max thick at the end of coarse grinding. The next grinding grade or two will take off a bit more …

Joy of Mirror Making: Introduction

2022-6-28 · Rough Grinding. Unless the mirror comes pre-generated, the initial curve will have to be ground into the mirror. A ring tool of half the diameter of the mirror used on top of the mirror''s flat face with the coarsest grit will rapidly grind a spherical curve into the mirror. Grinding a 6 inch [15cm] mirror to F/2.8 using a ring tool. Mirror ...

Ed Grinds a Mirror

2002-1-25 · What began as a leisurely mirror-grinding exercise is turning into a race against time. Hopefully we have caught this soon enough. Chapter Five: The 30 Micron and 12 Micron Stages, August 20, 2000 This was the first of our double-length sessions. Four of us showed up early to get through these grit stages more quickly.

Grinding Telescope Mirrors, Then and Now | Consortium …

2012-1-27 · The master craftsman, Roger Angel, who has been making telescope mirrors for 30 years, or its the technicians arranging—arranging not simply throwing into the mold—chunks of glass (pictured above), or those grinding and polishing the mirror, success depends on just knowing when you''ve done it right. Or, as Angel says, "Not only is it devilishly hard to grind …

Starshine Mirror Grinding & Polishisng

2000-1-12 · Your participation in the mirror grinding and polishing phase of this project is vital to the success of the overall program. These Aluminum mirrors are quite easy to polish, but extremely easy to scratch, if you don''t keep everything absolutely clean, so please follow the instructions as carefully as possible .

Explore how telescope mirrors are made | Astronomy

2021-7-27 · Making a telescope mirror. To start, a new mirror blank is "sanded" down to create a precise parabolic curve in a process called grinding. To do …

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