开云体育

threading


 

Hi all,
I was looking at the threading charts posted yesterday and of course
I have a couple of questions here. First one being, since there is no
dial ring on the top slide, can I assume that if I feed the tool with
the cross slide that I am giong to use the Single Depth column? For
instance, at 24 TPI, the SD column is .027,so I'd just use the dial
ring on the cross slide and feed it in .027?
Ok, the second question I just answered, I think the sloppy fit I
got on a thread I cut was due to the flat being a bit too large, and
probably the tool being ground by eye. Gonna have to make up a jig for
grinding the tools.
Now, if I were to put a dial indicator on the cross slide, on the
cover for the lead screw, to read the depth of the top slide, I believe
I'd still be feeding .027? And not using the .0312 figure for the top
slide set at 30 deg.? Thats if you're using the dial ring on the top
slide right? Which isn't there on the lot 4, at least the one that I
have here. But I'd be feeding it at the 30 deg angle and I'd assume
that the thread would turn out a little smoother? Or would it matter?
Too much assuming?
Dave

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