开云体育

Re: threading


 

Dennis and Jim,
Thanks for all the threading info. I'm glad it's posted here, cuz I
know I'll be going back to it, and if it's here I'll know where to
look for it.
Dennis, man, I hope you had your pants on when you posted to the
group by mistake. You wouldn't want to go putting everybody off right
from the get-go! =8-0
So after reading all that I see I forgot to ask about the
beginning diameter of whatever it is I may happen to be threading. Do
you generally take say .005 off the diameter of a 3/8 rod for
instance? A little more off a larger diameter, and like that? And
find out what works best after you've done some threading? Or should
you be able to get a perfect fit by starting out with a 3/8 rod
at .375? I guess I should just take a day and do some threading and
find out, eh?

So, has anyone come up with a way to keep the oil in the bearings?
I keep paper rags on each side of the foot under the headstock and I
stuff one under the bull gear when I'm not using the lathe to soak up
what leaks out. I've found that the gear guard over the small gear at
the end of the cone pulley can't be canted over towards the end of the
lathe or it won't keep the oil from slinging up the left sleeve of my
shirt. I did get a nice work shirt out of that experience
though.

Interesting off topic(and group for that matter) observation here.
I got an old,seriously rusty,compound off an SB saddle, with a piece
of oak and a big copper dead blow hammer, ( thumb isn't broken, just
some funny lumps where the cartilage in the joint used to be,and I
can even move it a little now!), I got the lead screw out, and
noticed that the lead screw is really worn in the middle, but if I
screwed the nut all the way towards the handle end of the screw,
there is almost no backlash. I'd have thought that the nut would have
been really worn too, being as it should be bronze,
and softer than the steel lead screw,but maybe as this is a WW II
era, no strategic metals, lathe it's made of something else?

Ok, that's probably enough for one evening, don't want to wear out
my welcome here. Thanks again for the advice.
Dave

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