Harrison L6 BA threads.

Harrison L6 BA threads.

This topic has 1 reply, 2 voices, and was last updated 29 December 2023 at 15:52 by DC31k.

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29 December 2023 at 15:03 #702369
colonelportermakedoandmend
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@colonelportermakedoandmend
Afternoon fo!ks,

My Harrison manual lists some change wheels for cutting BA threads. Unfortunately I can’t find anything else that explains how to combine these with other gear wheels or settings on the imperial Norton gearbox. Could anyone help at all?

Would also like to find a mentor locally (Newcastle area) to learn from – milling, lathe work and some CNC.

Thanks

Colonel P.
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29 December 2023 at 15:52 #702381
DC31k
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@dc31k
Can you provide a link to an online or downloadable manual for the machine? Then anyone who is so minded can look at it and try to help you.

Without that, the pool from which your helpers may be drawn will be rather shallow.

What does it list for 0 (zero) BA? What does it list for 1 BA?
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