Your Trusted 24/7 Service Provider!

[email protected]

Telescope Mirror Grinding Machine Costarica

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.Learn More

Astronomy Options Astronomy Mirror Making Telescopes

Astronomy Options Astronomy Mirror Making Telescopes

Currently manufacturing a 16″ diameter 1″ thick plate glass f388 newtonian telescope mirror doing this with my new fixed post grinding machine built this summer work is progressing well and very efficient started project in august and at this point i am ready to move on from 25 micron white aluminum oxide to 9 micon white aluminum

Mirror Grinding Machine G W Ritchey National Air And

Mirror Grinding Machine G W Ritchey National Air And

George willis ritchey built this mirror grinding machine at the yerkes observatory in williams bay wisconsin in the late s under the sponsorship of george ellery hale the machine was used to grind a series of telescope mirrors starting with a 24inch and then a 60inch mirror for a telescope initially intended for the yerkes

Amateur Telescope Making Main Page

Amateur Telescope Making 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

Grinding A Telescope Reflector With Tool

Grinding A Telescope Reflector With Tool

Grinding telescope reflectors of 15inch diameter and over makes it necessary to employ a motordriven 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 in this case the overhang of the mirror

Large Thin Mirror Making

Large Thin Mirror Making

In addition a great deal of money will be saved a finished 24 scope will set you back grinding your own mirror and building the mount yourself will cost you amateurs have made mirrors up to 41 by hand a grinding machine relieves the labor but is not necessary a 24 is the largest you can comfortably do

Making A Homemade Mirror Grinding Machine

Making A Homemade Mirror Grinding Machine

Mar 06 making a homemade mirror grinding machine posted in atm optics and diy forum i want to make a motorized mirror grinder any good info on this i have a couple geared motors low speed high torque one more question will 1 12 shaft size pillow block bearings work good for a homemade eq mount thank you

Joy Of Mirror Making Polishing

Joy Of Mirror Making Polishing

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 if the mirror is expanded to the size of a football field then the mirror’s surface will be smooth to inch or 130

Telescope Mirrors Blanks Secondaries Grinding Materials

Telescope Mirrors Blanks Secondaries Grinding Materials

Telescope mirrors blanks secondaries grinding materials testers aluminising making advice information telescope mirrors blanks tools aluminising testing amp materials home page telescopes amp astronomy telescope mirror aluminising mirror size ins aluminium quartz r 91 aluminium enhanced r 95 silver enhanced protected r 98 6

Mel Bartels Amateur Telescope Making

Mel Bartels Amateur Telescope Making

The iau named asteroid bartels discovered 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

How I Make Telescope Mirror Blanks By Fusing Glass Sheets

How I Make Telescope Mirror Blanks By Fusing Glass Sheets

This page describes how i make thick glass telescope mirror blanks by fusing together sheets of thinner glass i have found fusing the glass sheets to be easier and less problematic than casting the blanks as i do with my lightweight honeycomb blanks or my earlier attempts at casting solid blanksthe main problems with casting are that much higher temperatures are required and lots of air

Telescope Making Supplies

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 firstclass telescope objective different techniques are

Stellafane Atmmirror Making Myths

Stellafane Atmmirror Making Myths

With the mirror on top the tool on the bottom and coarse grit in between we start grinding with the mirror overhanging the tool we rub the center of mirror against the edge of the tool and this wears a depression in the center of the mirror the edge of the tool wears down also so that the tool becomes convex a hill in the center and