Re: Metric threads/Imperial threads
¿ªÔÆÌåÓýPart 1:? you cut imperial threads with a metric leadscrew in just the same way as the opposite.? Easy if it is all covered by a built in qcb, but I suspect that if not, you would use a 120 / 127 pair of gears swopped over.? Never needed to do that, others may know better. Part 2:? Metric threads from a metric leadscrew are done in the same way as Imperial / Imperial, BUT note that the thread engagement dial needs different teeth numbers for different pitches.? These are generally to be found stacked out of the way on the indicator spindle. Eddie -------- Original message -------- From: Andrei <calciu1@...> Date: 16/02/2023 16:14 (GMT+00:00) Subject: [SouthBendLathe] Metric threads/Imperial threads
All this discussion of metric threads has raised a question in my mind. Sorry for being simple, but the only metric threads I ever cut were small enough that they were done with a tap or a die, never on the lathe.?
Part 1 - Metric leadscrew. How do you cut imperial threads?
Part 2 - Metric leadscrew. How do you cut metric threads? Is it as straight forward as imperial on a imperial lathe?
Part 3.- Imperial leadscrew. Allan had a great explanation for how to cut metric threads. Thank you.
Thanks.
Andrei
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