grinding machine karl size telpe

Amateur Telpe Making Main Page

Telpe Formulas and Design Comparator This page has formulas for many telpe and mirror parameters. It will calculate parameters for two different telpe designs and compare the results for you. It provides data to help in selecting a telpe, and also provides information necessary for mirror making and testing.

Telpe Making Links

Telpe Making Links - Designs and Techniques. Ideas and how to do things. General Information. Amateur Telpe Maker's (ATM) Archives. The ATM Page. Getting Started with Building Your First Telpe. …

Working element, bipolar | KARL STORZ Endoskope | United …

The bipolar working element can be used with all KARL STORZ standard resectoscope sheaths and telpes in the corresponding sizes, thus allowing an inexpensive system changeover ... For telpe direction of view: 12° For telpe size: 2.9 mm: Color code: White: Number of poles: Bipolar: Type of usage: Reusable: Motion properties: …

Grinding Machine for Large Telpe Mirrors

Grinding Machine for Large Telpe Mirrors. I designed and built a grinding machine for mirrors up to 42 inches [1.1m] in diameter. ... Size 8-1/2 inch x 7 inch x 8 inch Gear reducer dimensions: see pdf ... My first …

Grinding an 8″ F/10 Telpe Mirror – openastronomy.ca

Grinding an 8″ F/10 Telpe Mirror. For this project (my first time ever grinding a mirror) I ordered an 8″ Black Vitrified Ceramic (BVC) blank without a pregenerated curve from ASM Products in Ste-Basile PQ. ... .25 sagitta very quickly and switched to 80 – I was quickly told on ATM-LIST that 46 was WAAAAY too rough for this …

optics

Remember that visible light is on the order of 400 nm wavelength, so ideally you should grind it down to be smooth at that size, which requires some really fine …

Telpe Making Links

Astronomy, telpe making,mirror grinding and testing 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 The Basics of Telpe Testing Test Stand

How To Make Your Own Telpe Mirror Blanks

A telpe mirror does not need to be very thick. It can be as thin as a few inches. The thicker the mirror, the more light it can gather and the sharper the image will be. Telpe Mirror Blanks. A telpe mirror blank is a large, concave mirror that is used to collect and focus light in a telpe.

Build your own telpe part 1: The mirror

How to Make a Lens for a Telpe (A Step-by-Step Guide)

Each component serves a distinct purpose. The main telpe tube houses the telpe's optics. The focuser connects the eyepiece to the telpe and allows for fine adjustments. The mirror or lens cell holds the telpe's primary mirror or lens. The eyepiece holder secures the eyepiece, and the finder scope helps you aim the telpe.

8 Inch Telpe Mirror Kit

An 8 inch aperture telpe is a great size for beginning and experienced amateur telpe makers. The first and key piece that you will need to make for your telpe is the primary, or objective, mirror. You will …

Joy of Mirror Making: Fine Grinding

Fine grinding a telpe mirror. The Joy of Mirror Making Mel Bartels ... The difference in grit size between 400 and 500 grit is very little. Simply grinding a tad longer with 500 grit means avoiding 400 grit completely. Also, professional quality grits are better sized, meaning that the percentage of abnormally large and small particles is ...

tut44 Making A Mirror Grinding Tool

times better than the average mirror found in an imported telpe of the same size. Most amateur telpe makers (ATMs) build a Newtonian telpe, a design named for its inventor, Sir Isaac Newton. The heart of the ... and finer grinding grits are used to slowly smooth out the new concave shape and to remove the scratches and pits left ...

The Perfect Machine: Building the Palomar Telpe

As a purchasing agent in the Astrophysics Machine Shop, Al Shea was thrilled by the 100-inch Mount Wilson telpe and grateful to be part of the construction of the 200-inch Palomar telpe. Every night at the supper table I would hear names like Bruce Rule, Mickey Sherburne, Fritz Zwicky, and Caltech's president, Robert Millikan.

Telpe Making/Making the Optics

The change in size as a telpe adapts to chilly night-time air makes for a nasty transition period before you can view the stars. The glass will move enough to mar the figure of the mirror—its ability to direct all of the light to one point—and you are basically stuck until the mirror equalizes with the environment.

tut44 Making A Mirror Grinding Tool

Here is how to make the grinding tool. 1. Trace the outline of the blank on a section of 3/4" tiles with a marker. Pick out a flat face tile like the tile shown in the photo. Most sheets of …

6 Inch Telpe Mirror Kit

A 6 inch aperture telpe is a great size for beginning and experienced amateur telpe makers. The first and key piece that you will need to make for your telpe is the primary, or objective, mirror. You will grind your mirror blank with smaller and smaller abrasives until you have produced a spherical or paraboloidal surface.

The Rosse six-foot telpe, was the largest telpe in the world

Parsons improved the techniques of casting, grinding and polishing large telpe mirrors from speculum metal, and constructed steam-powered grinding machines for parabolic mirrors. His 3 ft (90 cm) mirror of 1839 was cast in smaller pieces, fitted together before grinding and polishing; its 1840 successor was cast in a single piece.

Stellafane ATM: Grits, Polish & Pitch

If you have an older Telpe Making book, the grit size nomenclature in the book may no longer be used by grit vendors, particularly the American Optical Powder Numbers or the Elutriative Times. ... Mirror makers who …

How I built an edge grinder for telpe mirror …

I eventually decided I needed to build a dedicated edge grinding machine. This is how I did it. I started the build by making a sturdy frame for the unit out of 2x4 lumber and 3/4 inch thick plywood.

Productive Modes for Ultra-Precision Grinding of …

generated using a raster grinding process offered by a 3 linear axes Cartesian frame grinding machine. In the case of the BoX® machine, 4 of these 400mm square shape NiF lenses can be ground in a single set up as depicted in Figure 6. A 3.5 hour production grinding time can be achieved for the freeform

Mel Bartels' Amateur Telpe Making

I finished my 20 inch fully computerized telpe in 1994 with which I took some early CCD images. My Dobson era begin in 1981 with a bang: a 24 inch f5.5. I built my first …

Materials & Tools

The Tools: Grinding & Polishing. You will need two tools: A hard tool for rough and fine grinding, and a soft tool, or pitch lap, for polishing and figuring. Traditionally, the pitch lap was made on top of the grinding …

TELPE MIRROR BLANKS

test Precision Annealed Supremax Telpe Mirror Blanks Corning no longer produces Pyrex for optical use, however Advanced Glass Industries has a limited stock ... Standard Supremax Telpe Mirror Blank Size List. Diameter - Thickness 6" - 1.000" 8" - 1.375" 10" - 1.625" 12" - 2.000" 14" - 2.000" ... AGI can diamond machine ID holes into ...

How To Grind And Polish A Small Glass Mirror

There are a few things to keep in mind when choosing a machine, such as the type of mirror you want to grind, the size of the machine, and the budget you have. I designed and built a grinding …

Amateur Telpe Making Main Page

There are a lot of misconceptions about making a mirror - read this even if you don't plan to make a mirror, but just want to know how it is done - with your bare hands and a few …

telpes mirror grinding equipment

Grinding Machine . L-Size 2-End Gringing Machine. Axle precision core grinding machine. This model is psecially rsed for grinding sand (powder)of rough or precision grinding.Next step,use the grinding liquid to polish unti it becomes a shiny mirror surface. Finally,assemble them and inject the acrylic.PC lenses. 1100 (L)X950 (W)X1650 (H)m/m …

How I built an edge grinder for telpe mirror blanks.

I eventually decided I needed to build a dedicated edge grinding machine. This is how I did it. I started the build by making a sturdy frame for the unit out of 2x4 lumber and 3/4 inch thick plywood. Wheels were added to the bottom of the unit so it can be wheeled outside. The grinding operation will be messy, so it will need to be done outside.

Mirror Grinding Machine

The true test of the amateur astronomer is building their own telpe. Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built …

Telpe mirror grinding?

As anyone heard of or done any mirror grinding for a primary telpe? I just got into astronomy and would like to see if I can use my rou ... Mirror Grinding Machine Grinding-Polishing-Figuring-Testing Mirrors Stellafane ATM Main Page. 03-19-2012, 08:20 PM #3. Jimsz. ... that is a very nice size for most purposes, does not …