Adding NPT thread to threadlib

[kurt-klingbeil]

I would like to add NPT National Pipe Thread to threadlib
One specific aspect of NPT is the taper - which is required for the threads to seal.
I want to ask whether tapered threads are within the capability of threadlib
and if so, how that needs to be specified.

In my specific application, I could sacrifice the tapered thread and just choose
some median value of thread diameter, but I thought I would inquire about the process
of design/specification.

Here is a link to a table of NPT thread specs:
https://www.engineersedge.com/hardware/taper-pipe-threads.htm
and a link to equations which specify the relevant parameters:
https://www.engineersedge.com/calculators/pipe_thread_pitch_diameter_formulas_15545.htm

Some clues about how to incorporate which parameters into new threadlib entries would be appreciated.

[adrianschlatter]

Unfortunately, threadlib cant do tapered threads. To use your own specs (for a non-tapered thread), see the extensibility example in README and preferably also Design of threadlib.