making mirror grinding machine

Mike's Telescope Workshop - mdpub.com

Feb 21, 2015· 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 …

SkyBadger - Mirror Grinding Machine

Jul 09, 2012· Part 1 of me grinding and polishing a 12.5 inch telescope mirror. I'm using a home built fixed post or spin grinder.

Mirror Grinding Machine » Leonardo Da Vinci's Inventions

Oct 15, 2012· 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 grinding/polishing and curve generating machine. Ive got loads of questions regarding the design so Ill just start firing away Do I need an eccentric moving tool to be able to polish a mirror …

How I built an edge grinder for telescope mirror blanks.

Mar 16, 2015· Page 1 of 5 - Making a Mirror grinding & Polishing machine - posted in ATM, Optics and DIY Forum: Hello, I am on the half of the way to make a mirror grinding machine inspired by original M-O-M design. I made the pulley arrangement such a way that, both the turn table & eccentric spins at 50 RPM fixed.

Leonardo Da Vinci's mirror making machines

Strasbaugh polishing and grinding machine. You wont find very many of these around. Strasbaugh is the premier manufacture of machines used by the professionals. This machine is solid no plastic or wood. You can adjust the spindle and eccentric speed with a turn of a knob while running. It makes mirror grinding a pure joy.

Mirror grinding machine-runout - ATM, Optics and DIY Forum ...

We provide a complete line of amateur telescope making (ATM) supplies including, Mirror kits, Pyrex, abrasives, pitch and polishing compounds ... Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size. ... The polishing stage of mirror making accomplishes two things ...

Mirror Grinding Machine

My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telescope mirrors. Dennis Rech's M-o-M designs finally inspired me to just get up and do it. Over the years, I'd been collecting motors, gear boxes, pulleys, etc.

Strasbaugh polishing and grinding machine | Astromart

The mirror machine came to me as a result of astronomical horse-trading, swapping a large GEM mount and a 8" Newtonian OTA for the machine as it was and a start kit consisting of two 6" blanks and the grit, rouge and pitch to manufacture a mirror. The grinding machine had been built to the design of the mirror-o-matic design of Dennis Rech ...

Amateur Telescope Making Main Page - Stellafane

Making a tile on plaster tool Berthold Hamburger's Tile Tool Page (mirror) Grinding with Washers Grinding Large Thin Mirrors Part I 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

Grinding Machine for Large Telescope Mirrors

Nov 01, 2011· Hi AllWeve been having some idle discussions about grinding mirrors here. In particular, weve been discussing building a fixed post mirror grinding turntable for cutting mirrors up to about a 24inch diameter to spherical. Its only a pipe dream at the moment, but has anyone had experience building...

Grinding a 25-Inch F3 Telescope Mirror: Thinning and ...

The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. It embodies the "sub-diameter tool" design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by programmable rotating arms.

Making my own fixed post mirror grinding/polishing machine ...

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.

CNC Optical Grinding Machines | OptiPro

Mirror Grinding Machine Leonardo's Mirror Grinding Machine. leonardo miror grinding machine. The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built into it. This machine was most likely designed by Leonardo while he was either ...

Telescope Making Links - Designs and Techniques | STAR ...

Sep 23, 2012· After hogging the mirror blank to depth, the rough grinding stage begins. In this video I am grinding with 60/90 grit. The wets are lasting about 90 seconds ...

Astro-Tel - Mirror grinding machine

Amateur Telescope Making Main Page. Russell Porter ... 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 ...

The Joy of Mirror Making: Parabolizing - BBAstroDesigns

How I built an edge grinder for telescope mirror blanks. ... 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. ... making octagons, so the corners don't interfere ...

Joy of Mirror Making: Introduction

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 home-built edge grinding machine for grinding down my home-cast mirror blanks. Click to see the whole project. This is a 12.5 inch diameter, 1.5 inch thick, light-weight honeycomb-back telescope mirror blank that I made myself.

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.

Telescope Mirror Making: Part 3, Rough Grinding - YouTube

Want to build your own telescope? Start with one of our telescope mirror kits. Each kit comes with a telescope mirror blank and all the abrasives (silicon carbide grits and white aluminum oxide powders), cerium oxide polish and pitch to grind and polish it to your specifications.

Mirror grinding machine construction log - James Crombie

Dec 16, 2014· Gordon started with a 2" thick telescope mirror that weighed about 70 pounds. By thinning the blank, he's lightened the mirror by about 20 pounds! This video explains how he ground off the excess ...

Fixed post mirror grinder advice - DIY Astronomer ...

Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. Having been on the ATM list now since almost the beginning of it here on the web, I had lots of of inspiration reading …

Telescope Mirror Making: Part 1 - YouTube

This web page provides an overview of my large homemade telescope making project. I read several telescope and mirror making books and visited many amateur telescope making or "ATM" websites to learn how to build a 14.5 inch homemade telescope of this size. These sources of information provided many of the techniques I used to make the telescope.

mirror grinding machine | worldcrushers

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.

Making a homemade mirror grinding machine - ATM, Optics ...

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 mirror's spherical polished shape into a parabolic polished shape . See a related tutorial nearby titled, " Making A Mirror Polishing And Figuring Tool ".

Mirror-o-Matic mirror making machine - ATM pages of ...

You can see from this screen shot how an extreme star lap focuses polishing on the mirror's center. The making of my 25 inch f2.6 mirror deserves its own story which you can read here. A parabolizing session. I start with warming the pitch lap with a heat gun. I want the pitch warmed just enough so that it can be pressed into perfect contact.