Re: [CAD_CAM_EDM_DRO] fine-pitch threadcutting on thinwall tubing

Sorry, i forgot one item, as for size tubing most times you have to expand a
smaller size or reduce a larger size to get wall thickness and diameter
right.
many selections of expensive tube with high minimum quanities to choose
from. cul brian f.

----- Original Message -----
From: "Multi-Volti Devices (Murray)" <multi-volti@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, March 14, 2002 12:56 AM
Subject: [CAD_CAM_EDM_DRO] fine-pitch threadcutting on thinwall tubing


> Anyone here have the ability to thread thinwall metal tubing with fine
pitch
> threads (like camera filters). Inside as well as outside?
>
> I at first imagined one needed really weird taps & dies, but it occurred
to
> me that maybe it's just done with a cuttign tool on a lathe.
>
> Then the question is...how does one obtain the right diameter tubing? I
> imagine there are a limited number of sizes, and metric is another
problem.
>
> Oh, by the way, the application is threaded tubes & spacers for optical
> applications.
>
> I found a machininst who does this stuff but it's frightening costly...so
I
> wondered if it is frighteningly difficult.
>
> Thanks
>
> Murray
>
>
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