"Ed Huntress" wrote in message
...
On Mon, 4 Dec 2017 11:28:22 -0800 (PST), "
wrote:

On Monday, December 4, 2017 at 7:18:13 AM UTC-5, Jim Wilkins wrote:
if it's an AA/Sears 109-21270 your next problem will be spindle
deflection.
http://www.lathes.co.uk/craftsman/page5.html

If it is an AA Sears lathe , the first problem was spindle
deflection.

Dan

And the second problem was spindle bending, right at the bottom of
the
nose-thread relief.

--
Ed Huntress

It wasn't too difficult to bend back. I belted the lathe for speed and
still use it for polishing, and for drilling small deep holes like
axle grease passages, which don't have to stay precisely centered.

Since I have another lathe it might get a shop-made solid 1/2"-20
spindle with the end pointed to turn or grind between centers. The
1/2"-20 mount Jacobs chuck I usually leave on it is very nice for
odd-sized small work and filing or sanding close to the jaws.
-jsw