Thread: Dalton Lathes
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Old February 24th 19, 03:19 AM posted to rec.crafts.metalworking
DoN. Nichols[_2_] DoN. Nichols[_2_] is offline
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Default Dalton Lathes

On 2019-02-21, John B Slocomb wrote:
On Thu, 21 Feb 2019 17:59:54 -0500, "Jim Wilkins"
wrote:


[ ... ]

You buy a blank, unthreaded, chuck backplate and use the lathe to
thread it to fit the spindle. Then you match the front of the
backplate to the back of the new chuck.
http://www.lathes.co.uk/latheparts/page7.html

You could practice threading a pipe fitting before risking the
backplate.


Back when I was an apprentice boy no 3 jawed chuck was considered to
be perfectly centered and one always chucked up a larger piece of
stock to allow for a "truing cut" to ensure the work was running true.
Things shore have changed but a 4 jawed, independent chuck and a dial
indicator was the only method of ensuring that a work piece was
"centered".


Absolutely! Though you can get fairly close for many purposes
with an "Adjust-Tru" style chuck.

Best to Re-True it each time you change the size of stock held
in the chuck.

Enjoy,
DoN.

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