Thread Cutting Change Gear Calculator

[DIYSwede]

Thanks for sharing, Nigel. Works great.

Note to Metric users: -Only remember to enter a decimal point (instad of a comma) for Metric leadscrew pitch.

My two cents: Personally I almost always need to know the change gear combo to reach (or nudge) my desired thread cutting pitch,
rather than the other way around: Enter all the gears to find out what pitch I'll get then.

Keep up the good work!
Johan

PS: I've thus far been satisfied with Dr Al's Mini Lathe Gear Calculator
(particularly when cutting Imperial threads on my Metric mini lathe, by just 3D print a few extra 21, 50 & 63 T gears):
https://www.cgtk.co.uk/metalwork/cal...ears/minilathe