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[Mark Rand]

Once I got the Hardinge HLV rebuilt, I haven't gone back to cutting threads on the myford with its threading dial.

Having a once per spindle...

[Mark Rand]

1/4" BSF is 26tpi......

[Mark Rand]

Technically, that'd be a variable reluctance synchronous machine not a salient pole synchronous machine since it doesn't have any field excitation....

[Mark Rand]

Dennis Gabor invented holography in Rugby at the site where I started working. A few decades earlier Frank Whittle developed his forst gas turbines in...