Module [usually metric] and DP [usually inch] is for cutting worms to fit worm gears. Because pi is a factor, the TPI or m/m pitch is always a funky number.
Most any of the old machining books and older editions of machinery's handbook will have instructions on how to calculate required gear ratios and gears to generate a desired thread with a given pitch/lead leadscrew.
Assuming for the moment that you have an 8 TPI leadscrew, then to generate a 32 TPI thread you need to have the leadscrew turn at
1:4 ratio with the spindle. To look at this another way, when you turn the spindle 32 times you want the slide/threading tool to move 1 inch.
Each lathe is different, however you can generally set the QC box to 8 or 16 TPI and then swap the pick-off gears between the QC box and leadscrew, or between the spindle and QC box for a 1:4 or
1:2 reduction for finer/different threads than the QC box directly generates. If you do this, be sure to put a sign on the machine that the pick-off gears were changed [or change them back as soon as you are done] so the next person won't generate scrap when they use the QC box plate thread data.
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