CHJ
Established Member
Rorschach":3bj6iu39 said:Most small lathes only go down to 8tpi I think. I am pretty sure my Super7 is 8tpi minimum.
Yes that's the problem with my 9 X 20, I can force the ratios down by adding an additional 80 tooth gear but I'm pretty sure it would then be down to cutting thread by hand powering the carriage lead screw rather than the spindle.
Gearing