Hi Guys,
I know I'm not the only one who has this lathe. There have been a couple of discussions about threading using this lathe. The manual I received when I bought it had the original change wheel chart over written with a pasted insert. I have never been happy with the change gear combinations as supplied, ( not the gears themselves but what goes where to give various metric and imperial threads.
Today seemed to be the day to do something about it, so I did
Attached is a spreadsheet which gives the best gear ratios using the as supplied gear set for both metric and imperial threads. I hope my fellow owners find it useful. My lathe has a 3mm pitch leadscrew, so the ratios are based on that pitch.
Best Regards
Bob
Edit: Found some improvements on my improvements so attached is an updated Excel file.
