I'm working on a project that needs a worm cut so I needed to know all possible threads available on my lathe (Grizzly G4003G). Found a couple calculators for 4-gear mini lathes online but no help to me so I put together a spreadsheet and thought I'd post it here for anyone to use.

It's pretty self explanatory but let me know if you have any questions.

It would work for any similar machine with the same gear train and numbers of teeth, but I don't know which those may be.

Jason