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Telescope Mirror Grinding Machine Plans

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Mirror-o-Matic was designed to be a very low cost astronomical mirror grinding, polishing and figuring machine. Its attributes are 1. It can be built for somewhere between 200 and 400. 2. It is constructed of hardware store items and it needs no machined parts. 3. It is constructed primarily of 34 inch plywood and has few close tolerances. 4.Mirror-o-Matic was designed to be a very low cost astronomical mirror grinding, polishing and figuring machine. Its attributes are 1. It can be built for somewhere between 200 and 400. 2. It is constructed of hardware store items and it needs no machined parts. 3. It is constructed primarily of 34 inch plywood and has few close tolerances. 4.Oct 17, 2009 Build a machine to grind the mirror AKA mirror-o-matic Buy some glass. Mirror-O-Matic . One of the coolest ideas I found on the Web was this thing called a Mirror-O-Matic. Credit goes to Dennis Rech for making available the plans on the Internet on how to build it.Sep 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.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.Aug 19, 2019 Gordon Waite is probably one of the better mirror makers using this machine and have incorporated some of his ideas into my plan.Thin Telescope Mirrors . Abridged from an article appearing in Telescope Making 12 Provided Courtesy of Astronomy Magazine Articles Author Bob Kestner . Part I - Grinding . For many years, amateur astronomers and telescope makers thought it essential that glass for telescope primary mirrors be at least one-sixth as thick as its diameter.

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Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.Grinding the secondary is just like grinding any other optic except in minature. I ground the secondary with the mirror on a workstand and worked the tool on top just like I would grind a larger mirror. This optic is small enough that a lens grinding machine could work well.The Starfire project provided much of the funding for a new polishing lab built in 1990 and equipped with an 8 m grinding and polishing machine and a 24 m test tower, which were first used to figure the 3.5 m mirrors. The Mirror Lab was not free to choose the focal ratios, so these mirrors were more conservative at f1.5 f1.75.Currently manufacturing a 16 diameter 1 thick plate glass f3.88 Newtonian telescope mirror. Doing this with my new fixed post grinding machine built this summer. Work is progressing well, and very efficient.3 A homemade telescope mirror can be made with more accuracy and smoothness than the mass-produced, commercial mirrors available today. Unfortunately, the cost of mirror grinding kits and pyrex blanks has increased significantly in recent years to the point where any savings from making a mirror versus buying one are minimal at best.Nov 19, 2018 Page 1 of 2 - Constructing a Grinding Machine for large apertures - posted in ATM, Optics and DIY Forum Ive been using a 4.5 equatorial from Orion for many years now and Ive finally got the time and money to build a telescope from the ground up. Unfortunately my local astronomy club has no-one with experience with ATM-ing.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 get price tut44 Making A Mirror Grinding

Telescope Grinding Machine

Nov 06, 2020 telescope mirror grinding machines - MC World. 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.Nov 06, 2020 telescope mirror grinding machines - MC World. 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.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 either in straight or in circular strokes over the tool.On the opposite, a shallow mirror e.g. FD 8 will be performing very well on planets and the moon. The theory behind grinding is that you can remove glass as long as you use a material with a higher hardness. Telescope makers use silicon carbide powders a.k.a. carborundum for this task.Nov 01, 2011 Basically there are two types of grindingpolishing machine.Grinding machine waineo.Made mirror grinding polishing machine detailed plan.Telescope mirror grinding machine crusher mills grinding machines mirroromatic tom waineos desktop grindingpolishing machine ken liljas grinding machine telescope making david ratledges virtual home a telescope with a schmidt corrector is a schmidt.Grinding,Polishing and Figuring Large Thin Mirrors - Part 2 - Polishing Astronomy, telescope making ,mirror grinding and testing Large Thin Mirror Making by Mel Bartels Grinding Machines Mirror-o-matic Tom Waineos Desktop GrindingPolishing Machine Ken Liljas Grinding Machine Grinding Machine Figuring Figuring a Paraboidal mirror by thermal

Stellafane Atmmirror Making Myths

Mirrors can only be made with Special Precision Equipment in Expensive Factories or Labs Not True Telescope mirrors can be made in your kitchen, basement or garage with nothing more than the mirror blank and a second piece of glass called the tool to rub the mirrorMirrors can only be made with Special Precision Equipment in Expensive Factories or Labs Not True Telescope mirrors can be made in your kitchen, basement or garage with nothing more than the mirror blank and a second piece of glass called the tool to rub the mirrorJul 18, 2021 Lets talk about sizes of grinding and prepolish heads. Using the 14 all thread nipples a person will soon have the threads coming loose and binding up the machine when this happens, I use pliers to break them off and keep going.Polishing a mirror is one of the great joys you will experience as a maker and builder. Its also arguably the most accurate surface made by man or machine.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.The Hooker building was built at the Observatory headquarters in Pasadena with rooms for grinding and figuring the mirror and a 100-foot-long testing hall.TELESCOPE MIRROR MAKING BOOKS Advanced Telescope Making Techniques Volume 1 amp Volume 2 60AUD Amateur Telescope Making Volume 1, 2 amp 3 70AUD Build Your Own Telescope Complete plans for 5 high quality telescopes 70AUD The Dobsonian Telescope A practical manual for building large aperture telecopes 82AUD How To Make a Telescope 2nd Edition

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Jan 17, 2009 A drop of glycerol in the grinding slurry helps to avoid stiction between the mirror and the tool. For a 240 mm diameter F6 mirror the target sagitta is 2.5 mm so there is still some work to do. Posted on July 30, 2008 April 10, 2012 Categories Telescope Making Tags glass , mirror , N240 1 Comment on Mirror grindingJan 17, 2009 A drop of glycerol in the grinding slurry helps to avoid stiction between the mirror and the tool. For a 240 mm diameter F6 mirror the target sagitta is 2.5 mm so there is still some work to do.Mirror Grinding Machine2015-08-14 telescope mirror grinding machine based on Dennis Rechs M-o-M 20Mirror Grinding Machine PlansBest Woodworking proj. plant grinding machine despiegelkamer. Alibaba offers 13,397 plant grinding machine products.Mar 06, 2006 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 1516 , 70 of 12.5 ends up at 8 34 . Looking back at my notes I used the tile tool primarily at the 70 zone of the mirror.MIRROR GRINDING MACHINE. I made my first mirror grinding and polishing machine over thirty years ago. It used the working principle of the machine illustrated at A Fig.3, Page 163, Amateur Telescope Making Book 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type.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.