Drawbar thread

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Subject Author Date
Drawbar thread Richard Bradshaw 01-09-2008
Posted by Mark Rand on January 9, 2008, 8:42 am
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On Wed, 09 Jan 2008 11:07:27 GMT, "Richard Bradshaw"

> Looking at some more items like a
>slitting saw arbour I found that most are 3/8th or 1/2 BSW. My problem is I
>only have a metric lathe so can't make a new draw bar with an imperial
>thread. Is there someone who sells these or a soource that has M12 arbours
>anywhere.
>
>Or is there a configuration with the change gears where I can cut an
>imperial thread on a metric lathe.
>

The suggestion of using studding would be good, except for the fact that you
would need either BSW spanners or to turn it down and put a metric thread on
the end. I would suggest getting hold of a 3/*" and 1/2" BSW die. Turning the
drawbars to the right diameter is not a problem (12.7mm etc :-). Then, having
put the BSW thread at one end, thread the other end to suit your existing nut,
or similar other metric one, eg. M10 or M12 as appropriate.

Alternatively, whereabouts are you?

HTH
Mark Rand
RTFM

Posted by Archie on January 9, 2008, 12:24 pm
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>
> The suggestion of using studding would be good, except for the fact that
> you
> would need either BSW spanners or to turn it down and put a metric thread
> on
> the end.

Wots wrong with a shifter? -or am I showing my ignorance :-)

Archie



Posted by Mark Rand on January 9, 2008, 2:17 pm
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>>
>> The suggestion of using studding would be good, except for the fact that
>> you
>> would need either BSW spanners or to turn it down and put a metric thread
>> on
>> the end.
>
>Wots wrong with a shifter? -or am I showing my ignorance :-)
>
>Archie
>


Only major issue is that it's a pain to have to adjust one at head height,
against a mill head with little knuckle room, every time you use it.


Mark Rand
RTFM

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