Provided by: stlcmd_1.1-1build1_amd64 
NAME
stl_threads - stl_threads outputs an STL file with male or female threads per the ISO metric screw thread
standard.
DESCRIPTION
stl_threads outputs an STL file with male or female threads per the ISO metric screw thread standard.
usage: stl_threads [ -f ] [ -D <diameter> ] [ -P <pitch> ] [ -a <angle> ]
[ -h <height> ] [ -s <segments> ] <output file>
Outputs an stl file with male or female screw threads per the ISO metric screw thread standard
(http://en.wikipedia.org/wiki/ISO_metric_screw_thread).
-f - Outputs female threads (defaults to male).
-D <diameter> - Changes to major diameter of the threads.
-P <pitch> - Changes the height of a single thread, aka the pitch per the
ISO metric standard.
-h <height> - Changes the total height of the threads.
-a <angle> - Changes the thread angle (degrees). The standard (and default)
is 60 degrees. For 3D printing this can cause overhang issues as 60 degrees results in a 30 degree
angle with the ground plane. Setting to 90 degrees results in a 45 degree angle with the ground
plane.
-s <segments> - Changes the resolution of the generated STL file. More
segments yields finer resolution. <segments> is the number of segments to approximate a circle.
Defaults to 72 (every 5 degrees).
-o <outer female diameter> - When generating female threads, this is the
outer diameter. Must be greater than <diameter>.