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Tut44 Making A Mirror Grinding Tool Asterismorg

After fine grinding is complete the mirror must be polished it is during polishing that you figure the mirror by using a different polishing stroke to change the mirrors spherical polished shape into a parabolic polished shape see a related tutorial nearby

Round Glass Mirror Edge Polish Grinding Youtube

More machine details please contact with me any time wechatwhatsappimo 0086 15621899662 email sale01senkecnccom

Wwwjeffbaldwinorg

Fixedpost 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 curvegenerated the tool is hanging over the mirror by 16 the diameter of the tool or about 18 diameter of the mirror and is fixed in this position

Grinding Process

Grinding machine is a power operated machine tool where the work piece is fed against constantly rotating abrasive wheel to remove thin layer of material from work vgunasegaran assistant professor department of mechanical engineering bsacist chennai 48 the setup time for centerless grinding is

Faster Setup For Centerless Grinders Modern Machine Shop

Dec 05 2013 the reason a traditional centerless machine is so hard to set up is that you never really know exactly how high up the part is positioned in the machine with electronic height adjustment of the work rest blade we can make the contact angles constant along the entire wear zone of the regulating wheel and the grinding wheel

Mirror Making Machine

In mid2008 the desire to finish the 125 inch mirror hit again this time with a vengeance i had this urge to not only finish that mirror but eventually grind something even larger so with inspiration flowing i started designing a radical new mirror grinding machine that would run

Telescope Mirror Grinding Machine Products Amp Suppliers

Insaco inc lens grinding amp polishing specialized lens generating and polishing equipment allows insaco to manufacture a wide variety of lens in sapphire and other optical materials since 1947 insaco has been a precision machining and polishing fabricator of parts from all technical ceramics sapphire glass and quartz we machine these materials to very precise tolerances many times

Centerless Grinding Not Magic Modern Machine Shop

Dec 15 2000 the enabler for this is the application of cnc and servomotor technology to the centerless grinding machine with electromechanical actuation of slides dressers and truing attachments setup of the centerless machine is a much less daunting and time consuming exercise

Mikes Telescope Workshop Mikes World

I finally decided it was time to build a machine to help me grind the edges of the blanks true and round this is my homebuilt edge grinding machine for grinding down my homecast mirror blanks click to see the whole project this is a 125 inch diameter 15 inch thick lightweight honeycombback telescope mirror blank that i made myself

Build Your Own Telescope Part 1 The Mirror Thomas

The problem with thin mirrors is that they flex more easily during grinding and polishing making it hard to achieve the required surface precision they also need a more complex mirror cell additional support points plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass

5 Benefits To Inhouse Grinding Production Machining

Oct 01 2020 providing inhouse grinding is a benefit to both the machine shop doing the grinding as well as its customers the inhouse process saves time and money and helps a shop create higher quality parts ripley machine and tool inc ripley new york has had inhouse grinding

Grinding Optical Flats On A Fixed Post Turntable Atm

Dec 30 2020 the setup can be seen here video httpsphotosappg81ekz3ud49rtje9 notes on grinding photo above may differ but this is what we used for test 150mm diameter mirrors 30mm 20 offset between axes of rotation 100rpm 5um aluminium oxide 110 tap water slurry mirrors have already gone through a manual 3flat grinding process

Stellafane Atm Main Page

Much is also unchanged mirror grinding techniques are very similar to those written up by porter and ingalls in the 20 s and 30 s many amateur astronomers still choose to fabricate their own instruments for the pride of accomplishment the gaining of knowledge and the insurance of quality

Homemade Telescope Making Google Sites

A table saw covered with layers of newspaper about 12 inch thick to support the mirror and tool was used as the grinding stand a wet began by spraying the disks with water and smearing a small amount of grit over the tool or mirror with my fingers the mirror or tool was then carefully placed on top of the tool or mirror and

Skybadger Mirror Grinding Machine

First grinding log to setup for a grinding session i needed to provide the mirror mount to hold the mirror on the grinding base and the tool to hang off the eccentric drive arm the mirror mount i provided for by putting three inserts in the grinding table at 120 degrees on a 6 pcd

Tut44 Making A Mirror Grinding Tool Asterismorg

After fine grinding is complete the mirror must be polished it is during polishing that you figure the mirror by using a different polishing stroke to change the mirrors spherical polished shape into a parabolic polished shape see a related tutorial nearby

Mirror Grinding Machinerunout Atm Optics And Diy

Feb 21 2015 page 1 of 2 mirror grinding machinerunout 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 rpmwhich i think should be ok if i put a dial indicator on the top of the table near the

Fixed Post Mirror Grinder Advice Diy Astronomer

Nov 01 2011 basically there are two types of grindingpolishing machine the traditional type which involves the mirror rotating at a relatively slow speed a few rpm for a big mirror 1620 inches with the tool moving across the mirror from side to side at a higher rpm depending on the size of the mirror

Round Glass Mirror Edge Polish Grinding Youtube

More machine details please contact with me any time wechatwhatsappimo 0086 15621899662 email sale01senkecnccom

Couderprn Mirror Grinding Machine

Be careful that you do not move the mirror turn the mask 90 degrees and measure all the odd numbered zones the defaults are for a 15 mirror with 8 zones to change it use edit description couderprnzip 12 kb exe couderprnexe zipped the source code is also available as a visual c 60 project file zipped

Types Of Mirror Grinding Machines Atm Optics And Diy

Nov 16 2018 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 have a prestaltic moving arm

Newport Glass Works Ltd Grinding Polishing And Figuring

This is why you dont want to make mirrors to be worked on machines too thin for 16 to 18 mirrors 162 thick is the thinness i would recommend there are several ways to support the mirror on a grinding and polishing machine turntable but first make sure the turntable itself is rigid it

Hindle Simple Grindingpolishing Machine Atm Optics

Jun 06 2016 this machine is different than the grinding and polishing machines described later in the book and sounds like it is for small lenses and mirrors just when you get that drill press set up to work on a small mirror or lens you will need to drill a hole in something edited by dogbiscuit 16 august 2020 0831 am

Polishing Machined Aluminum To A Mirror Finish 5 Steps

Polishing machined aluminum to a mirror finish this is one of many strategies to get aluminum to a mirror finish if you have sandpaper a buffing wheel and some compounds you can get pretty close to mirror to get clearer and clearer finishes you can chrome plate electropolish or do it th

Making A Mirror Astronomy

Dec 16 2002 grindingpolishing machines work by rotating the bottom piece mirror or tool and letting the top piece freely rotate about its central axis as it desires to do as you watch a machine work the upper piece will rotate at about 12 to 110 the speed of the bottom piece

Grinding Process

Grinding machine is a power operated machine tool where the work piece is fed against constantly rotating abrasive wheel to remove thin layer of material from work vgunasegaran assistant professor department of mechanical engineering bsacist chennai 48 the setup time for centerless grinding is

Parabolic Mirror Grinding Machines Products Amp Suppliers

Mirrors glass grinding machine for p 5 107b method of producing p 4 84i palladium oxide coated p 6 133a parabolic for solar furdaces 9 211c for refleciingpolarized light p 6 132f silvering p 1 9b advances in fabrication and metrology for optics and large optics proceedings of the meeting san diego ca aug 1719 1988

How To Use A Surface Grinder Machine

The grinding wheel for any grinding operation should be carefully chosen and the workpiece set up properly in the grinding machine grinding speeds and feeds should be selected for the particular job whenever practical a coolant should be applied to the point of contact of the wheel and the workpiece to keep the wheel and workpiece cool to

How I Built An Edge Grinder For Telescope Mirror Blanks

The chips arent too bad and arent really a problem at all if i am cutting disks to fuse together if the disk needs to be chip free i simply cut it a little oversize and then grind down the edge to size erasing the chips along the way with the edge grinding attachment here is a photo of the machine set up to cut another glass disk

Making A Homemade Mirror Grinding Machine Atm

Mar 06 2006 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 john

Building A Fixed Post Mirror Grinding Machine

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 i like the fixedpost plan vs others with eccentric drives because it gets the heavy grinding done in an automated

Large Thin Mirror Making Bbastrodesigns

A grinding machine 1980 glass came 16 sided on the edge with deep ripples on the face and back a lot of work went into preparing the mirror for initial grinding i had to setup a tool to grind the edge round put bevels on the front and back grind the back flat then grind the front flat without creating a lot of wedge difference in

Fixed Post Mirror Grinder Advice Diy Astronomer

Nov 01 2011 basically there are two types of grindingpolishing machine the traditional type which involves the mirror rotating at a relatively slow speed a few rpm for a big mirror 1620 inches with the tool moving across the mirror from side to side at a higher rpm depending on the size of the mirror

Round Glass Mirror Edge Polish Grinding Youtube

More machine details please contact with me any time wechatwhatsappimo 0086 15621899662 email sale01senkecnccom

Grinding Machines Benteler Glass Processing Equipment

The benteler flat glass grinding machines convince due to their optimal grinding results based on precision speed and process reliability all machine types satisfy with short setup times because of rapid width and automatic glass thickness adjustment

Mirror Surface Grinding Machine Alibaba

Alibabacom offers 2135 mirror surface grinding machine products a wide variety of mirror surface grinding machine options are available to you such as local service location key selling points and applicable industries

Leonardo Da Vincis Mirror Making Machines

One machine is designed for grinding concave mirrors of small focal length the other machine a much larger piece to implement grinds mirrors of large focal lengths though leonardo da vinci creates sketches of mirror grinding one crucial and logical question to ask is whether he used such mirrors in his artwork or drawing

Mirror Grinding Machine Products Amp Suppliers

In september 1858 shortly after his return from europe draper began the construction of a mirror grinding machine of lord rosses design advances in abrasive technology xvi the superhard diamond grinding wheel with largegrit size plays an important role in precision mirror grinding

Newport Glass Works Ltd Grinding Polishing And Figuring

This is why you dont want to make mirrors to be worked on machines too thin for 16 to 18 mirrors 162 thick is the thinness i would recommend there are several ways to support the mirror on a grinding and polishing machine turntable but first make sure the turntable itself is rigid it

Build Your Own Telescope Part 1 The Mirror Thomas

The problem with thin mirrors is that they flex more easily during grinding and polishing making it hard to achieve the required surface precision they also need a more complex mirror cell additional support points plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass

Rough Grinding A 20quot Quartz Telescope Mirror On The Fixed

Mar 06 2010 this video shows how to setup a mirror grinding machine for fixedpost grinding also known as spin grinding or spinning after setup youll see how abrasiv

Astrotel Mirror Grinding Machine

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 fig3 page 163 amateur telescope making book 1 a bowl which rotated was fitted to the spindle i also built another machine

How I Built An Edge Grinder For Telescope Mirror Blanks

The chips arent too bad and arent really a problem at all if i am cutting disks to fuse together if the disk needs to be chip free i simply cut it a little oversize and then grind down the edge to size erasing the chips along the way with the edge grinding attachment here is a photo of the machine set up to cut another glass disk

Making A Homemade Mirror Grinding Machine Atm Optics

Mar 06 2006 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 john

Mirroromatic Mirror Making Machine Atm Pages Of

Mirroromatic grinding machine when i decided in 2009 after a tenyear break to get into mirror making again it quickly became clear to me that i would need to construct machine as hand grinding big mirrors is not something very beneficial for the hands of a musician

Machining Tips Machine Setup For Grinding Mitsubishi

Jan 11 2017 the type and style of the machine determines the size and configuration of the grinding wheel in a centerless grinder the regulating wheel is adjustable the angle position and speed of the regulating wheel determines the feedrate of the rod a typical setup angle for the regulating wheel is

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