"Harold & Susan Vordos" wrote in message
...

"SteveF" wrote in message
. com...
Let's say I have a small lathe (length) and need to make a threaded
screw
longer than the max length of my lathe. Obviously this can be done in
theory by just threading one part, removing from the chuck, reinserting
further back in the headstock and continuing the thread. But in
practice
can this be done with enough accuracy for something like a replacement
lead
screw for a lathe? Yes, I am aware of parts on Ebay and long threaded
rods
from MSC, etc. - this is more of a "how to use my lathe" machining
question.

Thanks.
Steve.

Given the proper setup, it's possible, but would be a serious challenge,
especially if you are new at machining. You'd need a follow rest,
possibly
a steady rest, be able to feed the material through the headstock, and be
able to pick up threads properly. Having considerable skill and experience
would be the most valuable asset, along with soft jaws. Depending on how
you pursued the project, you might be limited to length, but you could
cut
one longer than the center length of the machine.

Harold

I should have mentioned that the end product would likely be of
questionable quality.

Harold