Re: [ATM] too thin tube

["Ellen Mackenzie" <mackenzieconsulting@sympatico.ca>]

Hi Ukyo:
	You didn't give the wall thickness of the tube. You can turn an
extra fine thread on the lathe or an incomplete internal thread to match
the thread on the lens barrel if you first make a sturdy collar to fit the
external diameter of the tube to prevent it from stretching out away from
the cutter. I am assuming this is what you want to do.
	I have many lens parts that are fully threaded and are only 1 mm
thick, this works out to around 0.4 mm per thread a little over 50 threads
to the inch.

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