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Precision Lead Screws, Gears, and Pantographs

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Precision Lead Screws, Gears, and Pantographs Cover

 

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Publisher Comments:

Knuckleheads insist you must have a lathe in order to build a lathe. If that's true, then how was the first one made? Similarly, you don't need a precision master screw to cut another screw thread. Someone must have made the first precision screws from scratch. How was it done? Holtzapfel reveals some techniques. Maudsley made his own two hundred years ago.

You'll learn the secrets of making precision screws for scientific instruments including preparation, cutting, recutting, and especially the lapping that removes residual errors. This is same technique documented in a classic Amateur Scientist article in the 1950's. And the lap is similar to the 1000 threads per inch Merton nut mentioned in the 1930's in an article in the Review of Scientific Instruments. Great stuff for the precision fanatic. Oh! Be prepared to make measurements with an interferometer!

Another article will show you how a 4 foot lathe leadscrew was cut having only 40 millionths of an inch error across the entire length!

Also learn how small gears and pinions for clocks, watermeters, etc were mass produced just after WWI. You may not want to make hundreds of gears, but the basic techniques are interesting, and the ideas useful.

And if you've ever considering building a pantograph engraving machine, you'll like this article from the early 1920's. You'll see many different machines, each with its own application and benefits. You'll see drawings of bearings, cutters, sharpeners, layouts and more. You also get a photo and a brief mention of a pantograph capable of die milling and making three dimensional copies. Best material I've found so far for getting your idea generator going.

Product Details

ISBN:
9781559182324
Author:
Machinery Magazine
Publisher:
Lindsay Publications
Copyright:
Series:
Machinery's Industrial Secrets
Binding:
Pamphlet
Language:
English
Illustrations:
Y
Pages:
48

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Related Subjects

Science and Mathematics » Engineering » Featured Titles
Science and Mathematics » Featured Titles in Tech » Computers

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