Todays Project - What did you do today?

[f350ca]

Thanks guys.
My bad Ken, when I first looked at it I thought it looked square, at least not acme, turns out it was metric, 30 deg but for some reason they also cut the thread way to deep, as in the tip of the cutter was too narrow. I ground mine to match the tread, then checked it with my 29 deg acme thread fish, the tip was about two sizes too narrow so I ground it off to match the 5 tpi gauge slot. Seams to clear. When I have it apart to install the new screw I'll measure the minor dia on the old one. The pitch dia is right using the three wire measure.
The metric thread is a flip of the lever on this lathe, but not the Hardinge.
This lathe has a 2 tpi leadscew as well Mayhem and only an internal wet brake. Stops pretty good but I did manage one slight crash into the shoulder. The half nuts on this lathe are way to stiff and the leaver too low to use for threading so I just leave them locked and go back and forth with the clutch. It will cut down to 1/4 tpi, I could probably enter the carriage in drag races on that setting.
Steve, if I was sensitive at all I'd take offence to your brutal attack on my shop hygiene. Actually brought it into the kitchen to admire it at the table, which by the way hadn't got wiped after dinner, Charlie had done the dishes for me while I was playing in the shop.