Grinding Machine for Large Telescope Mirrors
Grinding machine for mirrors up to 42 inches [1.1m] in diameter. Can be configured for spin or stroke work. ... see pdf Paint: brilliant star yellow Analysis: Hindle/Zeiss style ... machine figuring action mirror o matic …
Measurement of an off-axis parabolic mirror using …
Hongwei Jing, Changqing Lin, Bin Fan, Long Kuang, Shibin Wu, Fan Wu, and Tianquan Fan "Measurement of an off-axis parabolic mirror using coordinates measurement machine and swing arm profilometer during the grinding process", Proc. SPIE 8415, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: …
Grinding Metre-Scale Mirror Segments for the E-ELT …
In this paper the grinding of a 1.45 metre scale Zerodur® mirror segment for the European Extremely Large Telescope (E-ELT) is introduced. Employing an R-theta grinding mode …
Hand Grinding a Telescope Mirror
This is how you make a telescope mirror out of a hunk of glass: Use a sand mixture and another piece of glass to grind away the middle of a concave shape. Repeat with finer and finer grit sand. Dave Barosso demonstrates the technique, but to do it yourself, try to visit one of the Telescope Makers Workshop's classes on Friday nights in …
Studyon a 5-axis precision and mirror grinding of glass …
Xie et al. [17] developed a new method of 5-axis precision and mirror grinding of glass freeform surface without on-machine wheel-profile truing, an f-theta freeform glass lens was successfully ...
Fewer-axis grinding methodology with simultaneously guaranteeing
This paper presents a grinding force control strategy with simultaneously guaranteeing surface accuracy for large optical SiC mirror. A fewer-axis grinder with toric wheel is used to ensure the high stiffness during the grinding process. According to the geometric properties of the contact area at the grinding point between the grinding …
R Series: Surface Grinder
Description: Single disc grinder capable of achieving mirror like finish on small parts without excessive lapping. Optional full automation and vacuum chucking of the part. R422. …
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Looking for threads on mirror grinding machines.
Looking for threads on mirror grinding machines. - posted in ATM, Optics and DIY Forum: I ran down a bunch of search results on this forum regarding building a mirror grinding machine and never found what I was looking for. Even the mighty Google didnt produce much results that would allow me to compare the various kinds of home …
Mirror surface grinding of ceramics using a three-axis …
DOI: 10.1016/S0890-6955(96)00092-2 Corpus ID: 109025261; Mirror surface grinding of ceramics using a three-axis precision cnc grinding machine @article{Kim1997MirrorSG, title={Mirror surface grinding of ceramics using a three-axis precision cnc grinding machine}, author={Hyun Surk Kim and Dai Gil Lee}, …
[PDF] Fast manufacturing of E-ELT mirror segments using …
Fast manufacturing of E-ELT mirror segments using CNC polishing. C. Gray, I. Baker, +9 authors. G. Yu. Published in Optics & Photonics - Optical… 3 January 2013. Engineering, Physics. We report on the first-ever demonstration of grinding and polishing full-size, off-axis aspheric, mirror segments as prototypes for an extremely large …
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 …
Explore how telescope mirrors are made
Waite Research. 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 that, the blank is paired with ...
Joy of Mirror Making: Rough Grinding
The first method is by far the most popular. Grinding the curve into the mirror face can be done by one of the following approaches: Ceramic tiled tool or glass tool ground against the mirror face. Full sized tool use …
Study on a 5-axis precision and mirror grinding of glass …
DOI: 10.1016/J.IJMACHTOOLS.2016.07.011 Corpus ID: 114755226; Study on a 5-axis precision and mirror grinding of glass freeform surface without on-machine wheel-profile truing @article{Xie2016StudyOA, title={Study on a 5-axis precision and mirror grinding of glass freeform surface without on-machine wheel-profile truing}, author={J. Xie and Z. J. …
Making my own fixed post mirror …
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 …
LPC 300 Mirror
LPC 300 Mirror. "Big sister" of the LPC 160 Mirror machine, our orbital polisher LPC 300 Mirror allows to polish and buff straight or bent tubes with round, oval, irregular section made of stainless steel, iron, aluminum, brass as well as other metals, with all diameters ranging from 5 to 114 mm. On request it can be supplied complete with ...
Mirror Grinding Machine
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 …
Making a homemade mirror grinding machine
Gordon will know more about the math for different mirrors and different sizes. I recall for mine it was about a 70% tool diameter. The bucket Gordon used to make the tile tool was 8 15/16", 70% of 12.5" ends up at 8 3/4". Looking back at my notes I used the tile tool primarily at the 70% zone of the mirror.
Grinding Mirror Machine Pdf
In the good old days, building your own telescope was the only way to get,grinding mirror machine pdf,grinding mirror machine pdf cylindrical grinding minicylindrical grinding mirror Grinding methods using a cup wheel. = COS-1 b (~/a2- (B)2 - a) (2) Here, r is the radius of out~er or inner part of the grinding tool, and B the width of the ...
High-performance grinding of a 2-m scale silicon …
Using the above-mentioned grinding strategies, a SiC mirror blank with an aperture diameter of 2 m was successfully ground to a form accuracy of 18 μm in peak-to-valley (PV). Therefore, this work provides an efficient and economical solution for grinding the large-scale SiC aspherical surfaces.
Stellafane ATM Main Page
Grinding a Mirror "For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is also true that if an amateur starts out to build a telescope just for fun he will find, before his labors are over, that he has become seriously interested in the ...
(PDF) Grinding of aspherical SiC mirrors
PDF | This paper describes the methods using bonded cup wheels for grinding toroidal and cylindrical SiC mirrors with large curvature radii. Since the... | Find, …
Grind and Polish a Dobsonian/Newtonian Telescope Mirror With …
The overhang to which you will push/pull this is important, in this part it's 1/3. That's 1/3 of the mirror diameter in total, so 1/6th forward, 1/6th back. If your mirror is 6" in diameter, push the tool until it overhangs 1", then pull it back until it overhangs 1", and repeat.
grinding mirror machine pdf
grinding mirror machine pdf. cylindrical grinding minicylindrical grinding mirror. Grinding methods using a cup wheel. = COS-1 b (~/a2- (B)2 - a) (2) Here, r is the radius of out~er or inner part of the grinding tool, and B the width of the mirror. The directrix of the circular cylinder is the circle x2+y2=R2 while the directrix of the elliptic ...
Impro Mexico Precision Machining Plant
Precision Machining Plant. Impro started its precision machining operations on a leased premise in San Luis Potosi, Mexico in July, 2016 serving OEMs customers in automotive and industrial equipment industries. With the completion of the new plant facility, we have expanded our capacity and capabilities to better serve existing and new ...
High-performance grinding of a 2-m scale silicon …
In this work, a five-axis fix-point grinding mode was developed for rapidly and accurately machining a 2-m scale aspherical SiC mirror blank. Rotary ultrasonic grinding system …
Grinding strategies for machining the off-axis aspherical …
In this paper, a variable-axis single-point grinding strategy is developed for precisely, cost-effectively figuring silicon carbide (SiC) mirror blanks that have high-order high-gradient …
How To Grind And Polish A Small Glass Mirror
I designed and built a grinding machine capable of grinding mirrors up to 42 inches [1.1 meters] in diameter. Spin and stroke work can be performed quickly if you move on and off two belts on the machine. If the drip pan is moved to the fast shaft on the machine's side, it can also be used to create smaller mirrors. The parts are for a 1/2 ...