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Enter the required PITCH
in mm for your metric thread.

The required mm pitch can be entered several different ways using the following menu buttons:
5A. Enter a single value to calculate a list of gear train options to produce the required mm pitch
5B. Request solutions for a whole range of different mm pitch.
5C. Use the metric thread reference tables as drop-down menus
to find the PITCH of the thread you want.
With data from the reference tables the program also calculates recommended drill sizes,
and thread depth displayed after the gear train results.
Range
Of
Numbers
Enter
List
Choose whether you want a range of values or a list for mm pitch
From (smallest) To (biggest) Interval (increment)
Enter a list of values instead.
For example copy these suggestions, or parts of these lists:
M-Series metric pitches:
0.2, 0.225, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 1, 1.2, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 5, 4.5, 6
BA series metric pitches:
1, 0.9, 0.81, 0.729, 0.656, 0.59, 0.531, 0.478, 0.43, 0.387, 0.349, 0.314, 0.282, 0.254, 0.229, 0.206, 0.185, 0.167, 0.15, 0.135, 0.122, 0.109, 0.098, 0.089, 0.08, 0.072

There are so many metric pitches that you might want to divide them into two sets: 'Fine' metric threads
0.2, 0.225, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8
and a 'course' set
1, 1.2, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 5, 4.5, 6
this will reduce the printout but does not affect computation time.

You can reduce the number of results by decreasing the acceptable error, possibly as low as 0%. You may also decrease the number of compound gears in step 2A. You may get good results with no compound gears at all.