Crushing & Grinding Machines

Grinding Machine

Grinding Machine Delivering Smarter Solutions Equipment Grinding Machine Horizontal Cutting Machine USAGE Available for assorted angles cutting from blanks apectaclmagnifier telescope camera lems SIZE 1100 L X610 W X1300 H m/m L-Size 2-End Gringing Machine...

Amateur Telescope Making Main Page

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 125 inch diameter 15 inch thick light-weight honeycomb-back telescope mirror blank that I made myself...

Seimei telescope project and technical developments

The grinding machine took two weeks to achieve 1 μm figure precision with an open loop employing a kinematic mirror support system and taking into account prediction of sags due to gravity and grinding force more specifically it took one week for the machine to make rough grinding...

Dick Parker s Telescope Mirror Workshop Cassegrain

I rough ground the f/4 curve using standard grinding techniques on a full size tool made out of porcelain tiles epoxied onto a form made of cement After roughing in the curve I trepanned a 25 inch diameter...

PDF Precision grinding for rapid fabrication of segments

We report on the first-ever demonstration of grinding and polishing full-size off-axis aspheric mirror segments as prototypes for an extremely large telescope processed entirely in the final...

ON THE MODERN REFLECTING TELESCOPE AND rHE MAKING

GRINDING AND POLISHING MACHINES TIlE grinding and polishing machines used by the writer are somewhat similar in principle to Dr Draper s machine shown in Fig 25 of his book but are more elaborate I shall describe here the machine used in making the 5foot mirror both because it embodies most of the essential features of a-grindingand...

How I make Telescope Mirror Blanks

Here is a stack of my home-made 8 and 10 inch mirror blanks The second from the bottom is the one above I can use the thinner blank below it as the grinding tool UPDATE I have started rough grinding one of my home-made 10in glass blanks Here is an action shot of...

Grinding Machine for Large Telescope Mirrors

Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches 11m in diameter By slipping on and off a couple of belts the machine can quickly be reconfigured for spinning work or for stroking work...

Amazon floor grinding machine

Goplus 750W Drywall Sander with LED Light and Collection Bag Variable Speed 900-1800 RPM Electric Drywall Sander with Telescope Handle and 6 Sand Pads Dust-Free Wall Grinding Machine 48 out of 5 stars 6 10999 109 99 FREE Shipping Only 8 left in stock - order soon...

Repairing Sonarindia Make Fle able Grinding Mechine

Husqvarna introduces new range of grinding machines Benefits for all machines We created these new grinders with not only the professional user but also the do-it-yourself homeowner in mind These machines are durable flexible and easy to use thanks to some great new features The new chassis frame can be separated from the grinding...

Grinding metre scale mirror segments for the E

Jan 01 2011 0183 32 To minimise the moving masses machine motions are achieved using three fundamental ax Two stacked hydrostatic linear axes x z holding the inclined hydrostatic grinding spindle and a single hydrostatic rotary spindle c supporting the workpiece Download Download full-size image Fig 4 BoX machine...

Telescope Mirror Grinding Machines

Telescope Mirror Grinding Machine Crusher Export Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches 11m in diameter By slipping on and off a couple of belts the machine can quickly be reconfigured for spinning work or for stroking work...

The Perfect Machine Building the Palomar Telescope

As a purchasing agent in the Astrophysics Machine Shop Al Shea was thrilled by the 100-inch Mount Wilson telescope and grateful to be part of the construction of the 200-inch Palomar telescope...

Precision grinding for rapid fabrication of segments for

The Cranfield BoX grinding machine was designed for manufacturing high precision low slope freeform surfac 8 12 This machine takes precision design concepts from large diamond turning and...

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 first-class telescope objective Different techniques are...

Mirror grinding

Past the 12 300 mm size grinding your own really pays off Or you want to make a super precise highest quality mirror in the 150-200 mm size The only problem is that a 400mm mirror is WAY too large to be your first time mirror project and your beginner skill...

Grinding Machine for Large Telescope Mirrors 3D Warehouse

Aug 09 2017 0183 32 Grinding machine for mirrors up to 42 inches 11m in diameter Can be configured for spin or stroke work All Categori Try SketchUp 3D Model Grinding Machine for Large Telescope Mirrors Mel B 1 Likes 418 Downloads 8K Views Download Grinding machine for mirrors up to 42 inches 11m in diameter...

Seimei telescope project and technical developments

The grinding machine took two weeks to achieve 1 μm figure precision with an open loop employing a kinematic mirror support system and taking into account prediction of sags due to gravity and grinding force more specifically it took one week for the machine to make rough grinding with 170 stone from the initial flat status on both sides...

How I make Telescope Mirror Blanks

Here is a stack of my home-made 8 and 10 inch mirror blanks The second from the bottom is the one above I can use the thinner blank below it as the grinding tool UPDATE I have started rough grinding...

Telescope Mirror Grinding

2016-4-6about 50 is of the labour involved in making a telescope of this type goes into grinding and polishing the primary mirror chapters 2 3 the other 50 is accounted for in the fabrication of the telescope tube the mirror cell and the mount chapter...

Grinding Machine Types Parts Working Operations With

Working principle of Grinding Machine The working principle of a grinding machine is quite easier to understand In a grinding machine there is an electric motor which supplies the motion power to the grinding wheel with the help of a belt and pulley So when we start the electric motor the motor rotates at a certain rpm 150-15000 RPM it may change according to the types of grinding...

GRINDING A TELESCOPE REFLECTOR WITH TOOL

Grinding telescope reflectors of 15-inch diameter and over makes it necessary to employ a motor-driven turntable Small very high structure over the grinding machine I did the next best thing in a much simpler way by moving the tool over a the size of the glass...

grinding / polishing machine for telescope mirrors

Sep 29 2014 0183 32 Mechanical assembly is complete The machine could start grinding now I still need to build the electronics and then there s painting and finishing...

Building a fixed post mirror grinding machine

Aug 19 2019 0183 32 Update I have my 22 full size piece of 3/4 baltic birch cut for me by the local shop who sells building suppli I need to find its centre and then saw matching cutouts for the bearing bolt...

Mel Bartels Amateur Telescope Making

The IAU named asteroid 17823 Bartels discovered 1998 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 tools...

Mirror grinding

Past the 12 300 mm size grinding your own really pays off Or you want to make a super precise highest quality mirror in the 150-200 mm size The only problem is that a 400mm mirror is WAY too...

Telescope Mirror Grinding Machines

Telescope Mirror Grinding Machine Crusher Export Grinding Machine for Large Telescope Mirrors I designed and built a grinding machine for mirrors up to 42 inches 11m in diameter By slipping on and off a couple of belts the machine...

Making a homemade mirror grinding machine

Mar 06 2006 0183 32 In the video I used a 10 lb weight for the grinding and when it was at polishing 8 pitch tool I used about that much weight also maybe some more I found the overarm was best on the bigger glass where a sub-diameter tool comes in handy The 125 turns out to be doable with a full size tool...

grinding machine telescope

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 Most of...

ELID precision grinding of large special Schmidt plate for

Nov 01 2005 0183 32 Truing and grinding were conducted on an ultra-precision 4-axes grinding machine with a maximum resolution of 1 nm for 3-axis linear feeding The wheel profile tip radius wheel radius was at first measured to prepare an NC program that decided motion of the wheel center points Grinding...