useful charts or calculators for working metals and other materials

Wire rope specs
Attachment 25609
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UB3 USB connectors
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Transformers and voltage regulators
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gear design tables
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SAE Flywheel housings and flywheels
Attachment 25623

Three-Phase Circuits, Transformers and generators, theories ,wiring schematics and applications if you are into constructing or learning about these this may be the rabbit hole for you I have hundreds of files on these subjects which are too large to publish contact me if you would like them
Attachment 25624
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6 & 9 phase circuit
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Continuation of post #26
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I have more than 200 more of these files on this specific subject

Lightly touching on gunsmiths tools materials and methods. not many of my files can be up loaded here at this time
Attachment 25653
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Tempering and making springs
Attachment 25655
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Lathe spindle noses
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