original_nut_syntax

// Created 2018-2017 by D. Pantazis
// Used thread library created by Ryan A. Colyer.
// http://www.thingiverse.com/thing:1686322
// This work is released with CC0 into the public domain.
// https://creativecommons.org/publicdomain/zero/1.0/
//
// v1.0
//
$fn=360;

// use <threads.scad>

use <./threads_v2p1.scad>

// use <knurledFinishLib_v2.scad>
/*
 *	 in your OpenSCAD script and call either...
 *
 *    knurled_cyl( Knurled cylinder height,
 *                 Knurled cylinder outer diameter,
 *                 Knurl polyhedron width,
 *                 Knurl polyhedron height,
 *                 Knurl polyhedron depth,
 *                 Cylinder ends smoothed height,
 *                 Knurled surface smoothing amount );
 *
 *    knurled_cyl(k_cyl_hg, k_cyl_od,
 *                knurl_wd, knurl_hg, knurl_dp,
 *                e_smooth, s_smooth);
 * }
*/


// Create a 1.5" nut with 8 tpi.
diameter_in = 1.5;
tpi = 8;
diameter = diameter_in * 25.4;
pitch = 25.4/tpi;
// part OD
OD=52;
H=20;

module RHole(height, position=[0,0,0], rotation=[0,0,0], tolerance=0.027*25.4) {
  ScrewHole(diameter, height, position=position, rotation=rotation,
            pitch=pitch, tolerance=tolerance)
    children();
}
module LHole(height, position=[0,0,0], rotation=[0,0,0], tolerance=0.027*25.4) {
  mirror([1,0,0])ScrewHole(diameter, height, position=position, rotation=rotation,
            pitch=pitch, tolerance=tolerance)
    children();
}

module HermiNut() {
//	translate([0,0,0])knurled_cyl(H, OD+pitch, 4, 4, 2, 3,0);
    translate([0,0,0])cylinder($fn=6, h = H, r1 = (OD)/2, r2 = (OD)/2, center = true);
}
module ThreadChamferID() {
        cylinder(h = pitch, r1 = diameter/2, r2 = (diameter-2*pitch)/2, center = false);
}

module NutChamfer(){
difference(){
    cylinder(h = pitch, r1 = (OD+0.50*pitch)/2, r2 = (OD+0.5*pitch)/2, center = false);
    cylinder(h = pitch, r1 = (OD-2*pitch)/2, r2 = (OD+0.125*pitch)/2, center = false);
}}
difference() {
HermiNut();
union(){
    translate([0,0,-H/2])RHole(H);
    translate([0,0,-H/2])LHole(H);
}
translate([0,0,-0.01-H/2])ThreadChamferID();
translate([0,0,0.01+H/2])rotate([0,180,0])ThreadChamferID();
translate([0,0,-.01-H/2])NutChamfer();
translate([0,0,0.01+H/2])rotate([0,180,0])NutChamfer();
}