Stellafane ATM: Materials & Tools

Topics on this page: Mirror Blanks, Grinding & Polishing Tools, Grits & Pitch, Storage Containers, Grinding Stands, and Miscellaneous Items. 6" & 8" Pyrex Mirror Blanks Patterns on surfaces and edges are mold marks, splotch on 6" is a grinding mark by the manufacturer. Two blanks are in their protective cardboard shipping sleeves. ...

Astro-Tel - 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" Fig.3, Page 163, "Amateur Telpe Making" Book 1. A bowl which rotated was fitted to the spindle. I also built another machine of the same type.

Homemade Telpe Making - Google Search

The mirror (or tool) was then carefully placed on top of the tool (or mirror) and grinding started (i.e., pushing the glass disk on top back and forth). The procedure was quite similar to grinding a smaller mirror, except that the disks are heavier.

Mirror Grinding Machine (Unfinished) - YouTube

Testing its speed

CNC Grinding Machine | Cnc Machine Wiki

The Universal Cylindrical Grinding Machine manufactured by Brown-Sharp Company of the United States, exhibited at the Paris Exposition in 1876, was the first machine with the basic characteristics of a modern grinding machine. Its workpiece headstock and tailstock are installed on a reciprocating worktable.

mirror grinding machine for sale - mayukhportfolio.co.in

Jim Loudon Obs. - THE NEWLY REBUILT 10.5" f/3.95 NEWTONIAN. First, a good bevel was put on the mirror to prevent any chipping. ... The original grinding machine was a simple spindle and non-driven overarm. ... up for a dollar here dollar there at garage sales and the tube is a thin all cement form tube.

Mirror grinding - scope making

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.It 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 …

Mirror Grinding Machine (Complete) - India - YouTube

Its a near Mirror o Matic mirror grinding machine.....It runs at 50 RPM fixed, The eccentric has dual speed, 17 RPM & 41 RPM.I built it in 6 months.....Sum...

Mirror Grinding Machine | Hackaday

Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built this mirror grinding machine from scratch.

US1171174A - Parabolic-mirror-grinding machine. - Google ...

Parabolic-mirror-grinding machine. Applications Claiming Priority (1) Application Number Priority Date Filing Date Title; US86695214A US1171174A (en) : : Parabolic-mirror-grinding machine. Publications (1) Publication Number Publication Date ...

3rd World making a wheel hub

Actually the more slop in a mirror grinding machine, the better. To a degree, anyway, it helps to average out the figure. The precision is in the process, not the machine. Many smaller mirrors have been made entirely by hand. Of course, the figure is checked and tested many times during the procedure.

Automatic Or Manual Cnc Plane Hairline Finishing Polishing ...

ADV is a new brand opened in the end of 2018, but the factory already has 25 years of designing and producing deburring machine, grinding machine and polishing machines. The original intention is to create a brand which is most reliable in China and most famous in the world. We made a plan to finish it within 5 years.

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 …

Making a 25 inch F2.6 mirror - BBAstroDesigns

A lightweight mirror makes the work of grinding, polishing and parabolizing so much easier. Astigmatism is not an issue for such a large fast mirror. A simple mirror cell suffices (9 point where each point supports a 2 inch diameter pad back support, 2 …

24" Mirror Grinding and Polishing Machine - IceInSpace

I started this thread to record my building progress of a new mirror grinding and polishing machine. This machine will be capable of handling mirror sizes up to 22". I have decided that 22" is the absolute maximum otherwise becomes too cumbersome to move around. I have won 2 x 1/3 horse power single phase electric motors on eBay, at $45 each.

Stellafane ATM:Mirror 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 ...

A Construction Manual For Converting The Mirror -o-Matic

The original Mirror -o-Matic had a turntable that doubled as a slurry drip pan. Because of the increased effort of removing larger, heavier mirrors on this new bigger machine, I have added a stationary drip pan under the turntable. This will allow wa shing the mirror in place and attaching a drain pipe to the pan.

Parabolizing a Telpe Mirror - BBAstroDesigns

Zambuto's process using a Mirror-O-Matic machine comes close to generating a properly parabolized mirror simply by following the steps outlined in his spreadsheet. Texereau states that his "group has parabolized a number of mirrors 'automatically,' in effect, by using a team of four or five operators all applying the 'same' stroke."

Fixed-post 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 curve-generated. The tool is hanging over the mirror by 1/6 the diameter of the tool, or about …

Mirror-O-Matic

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.

Building a fixed post mirror grinding machine ...

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 fixed-post plan vs others with eccentric drives, because it gets the heavy grinding done in an automated manner, but still give you the chance to hand-figure.

Grinding Machine: Definition, Parts, Working Principle ...

Grinding Machine Definition: A grinding machine is a production machine tool used in the manufacturing industry in which the grinding wheel is attached in the tool post and the workpiece is fixed to the work table and when the operation starts it removes the unwanted material to get the desired surface finish, correct size, and accurate shape of the workpiece.

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

The M-o-M is a marvellous machine due to its simplicity and yet refined design. It is extremely flexible accommodating mirror sizes from 4 inch up to 20 inch (with slight modifications) and can be used for all three steps necessary in producing a mirror. That is you can use it to grind, polish and figure your optics.

Metal polishing machine - All industrial manufacturers

LAM PLAN (3) Lapmaster Wolters (3) LECO (2) ... metal polishing machine LPC 160 Mirror. for glass for plastics tube. metal polishing machine. LPC 160 Mirror. Orbital polishing machine with buffing belts for grinding and finishing operations on straight, ...

The Cam Hammer » Leonardo Da Vinci's Inventions

This machine would be used extensively several hundreds of years after his death during the industrial revolution. They would be powered by Steam engine and could hammer at up to twenty times per second. They were used to draw out the sheet metal for ships and armored machines for war such as the tanks in world war 1.

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 …

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

Large Thin Mirror Making by Mel Bartels. Grinding Machines. Mirror-o-matic. Tom Waineo's Desktop Grinding/Polishing Machine. Ken Lilja's Grinding Machine. Grinding Machine. Figuring. Figuring a Paraboidal mirror by thermal predistortion. Optical Testing.

Limestone Filler GRINDING MILL | Crusher Mills, Cone ...

Telpe Mirror Grinding Machines; Stone Crusher Equipment Mfg. Hyderabad; Mirror Grinding Machine Plan; Jaw Cresher Crushing Plant Price In India; Pe400x600 Sale Used Jaw Crusher Japan; European Cpap Suppliers; Advantages Of Impact Crusher; Comparison Of Jaw Crusher Vs Cone Crusher; Masala Grinding Machine; Pioneer …

Telpe Mirror Grinding Machines | Crusher Mills, Cone ...

"The Machine": Homemade Telpe Mirror Grinding And Polishing Machine (Plans And Additional Photos) Mirror Making Machine – Welcome to the Fansler's. Bugger this for a Lark – A machine has got to be easier! I made my first telpe mirror, by hand in … could not afford the material to build a mirror grinding machine …