Hi Don,
I know you're not familiar with the 9x20 lathe. FYI, it has no factory tumbler reverse. (However, there are a number of people who have added their own. It's on my list of things to do.)
- Michael
I have a Jet 12x36 IIRC, to cut metric threads, you have to change the "gears" could your lathe have the "wrong" gears installed
PS Jet is very helpful for info about this kind of stuff
Bill k7NOM
Keith Marshall wrote: I tried cutting a 8 TPI thread using the 1 on the dial and got three diferent start positions. Just counted the threads and it 16 or nearlu 16 per inch
I have a JET 9x20 and I successfully threaded a new back plate on it for a
4-jaw chuck without any problems. The spindle is 1 1/2 x 8TPI.Have you checked to be sure the gear on the end of the thread dial is snug up against the lead screw? It could be skipping if it's loose.
Best Regards, Keith Marshall snipped-for-privacy@progressivelogic.com
"I'm not grown up enough to be so old!"
my gawed!! don't ever let Gunner find out about this!!!!
Otto
It doesn't really matter whether the lead screw is
O.K. Then it is not a possible mistake -- yet. :-)
Hopefully, one of the other suggestions will have led you to the solution by now.
Good Luck, DoN.
Yes -- but one which I did not see until I posted mine.
But people really need to be careful to duplicate the information in the "Subject: " header down in the body, so as to make this sort of thing harder to stumble over.
Sorry, DoN.
replying to Bill Janssen, loren green wrote: I want to thread a back plate as well, but I have not figured out the setting. Can you send me the set up for my jet 920? thanks
replying to Bill Janssen, loren green wrote: I want to thread a back plate as well, but I have not figured out the setting. Can you send me the set up for my jet 920? thanks
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