08-05-2014, 11:42 AM
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Single point threading problem
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08-05-2014, 11:46 AM
The first thread I cut on my current lathe ended up with the correct TPI but shaped more like a saw tooth. It was then I found out that 30 degrees on my compound really means 60 degrees. So I wouldn't make that mistake again, I took a scribe and with the compound set to the proper angle I scratched a line along the side of the compound. Makes it a whole lot easier setting it up.
Ed
08-05-2014, 02:33 PM
Zactly what I did with my 12x36.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
08-05-2014, 04:55 PM
Last thread I cut on the Hardinge was a 20 tip, that was the second number over on the chart so I brought the tumbler up into the second slot. Made a couple of light passes and things didn't look right. Check it with the gauge and its not 20, HUH. Next one over on the chart is 27 and thats what I got. HUH. They have an empty space to hold the tumbler up in that doesn't engage anything so I needed the third slot. DUH.
Free advice is worth exactly what you payed for it.
Greg 
08-05-2014, 05:59 PM
Ah! the old ubiquitous Hardinge. I hope "last thread" doesn't mean you won't thread with the Hardinge again (ha ha ha).
I'm sure you'll work it out, no rush but please fill us in.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
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