First Nylon/Classical Tuner attempt
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CFTubes.scad
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CFTubes.scad
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@ -1,13 +1,32 @@
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include <common.scad>
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include <UBassTuner.scad>
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include <NylonTuner.scad>
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// Guitar_Scale_Length_mm = 610; // millimetres, slightly over 24inch (609.6mm) Jaguar scale, should be fine for guitar and u-bass
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// assert(fret_scale_length(0) == 610); // Make sure the function correctly uses our changed global
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CF_Tube_Dia = 5.0;
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CF_Tube_Len = 420; // Convenient Amazon size, longer would be better of course but prices are important
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CF_Tube_OD = 5.0; // Outer Diameter
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CF_Tube_ID = 3.0;
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CF_Square_Width = 6.0;
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CF_Square_ID = 5.0; // Inner diameter, sadly doesn't fit the tubes
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cyl_hd_fn = $preview ? 32 : 512;
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cyl_ld_fn = $preview ? 24 : 72;
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module CF_Tube() { // Align +y
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rotate([0, 0, 90]) render() difference() {
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rotate([0, 90, 0]) cylinder(h=CF_Tube_Len, d=CF_Tube_OD, $fn=cyl_hd_fn);
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rotate([0, 90, 0]) cylinder(h=CF_Tube_Len, d=CF_Tube_ID, $fn=cyl_ld_fn);
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}
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}
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module CF_Square() {
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rotate([0, 0, 90]) render() difference() {
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translate([0, -CF_Square_Width/2, -CF_Square_Width/2]) cube([CF_Tube_Len, CF_Square_Width, CF_Square_Width]);
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rotate([0, 90, 0]) cylinder(h=CF_Tube_Len, d=CF_Square_ID, $fn=cyl_ld_fn);
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}
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}
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// Philippians 4:8
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// Gideon 真実な, 尊ぶべき, 正しい, 清い, 愛すべき, 評判の良い, 徳とされる, 称賛に値する
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// Gideon (ShinKaiYaku07) 真実な, 尊ぶべき, 正しい, 清い, 愛すべき, 評判の良い, 徳とされる, 称賛に値する
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// ShinKaiYaku65 最後に、兄弟たち。すべての真実なこと、すべての誉れあること、すべての正しいこと、すべてのきよいこと、すべての愛すべきこと、すべての評判の良いこと、そのほか徳と言われること、称賛に値することがあるならば、そのようなことに心を留めなさい。
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// I swapped 愛 and 評判 because 12th fret should be the biggest marker, and having only 15 as a 2char marker would be too disorienting
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// going with 良 for 21
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@ -50,25 +69,29 @@ module neck(string_spacing=18, string_margin=4.5, num_strings=3, target_neck_thi
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module fret_inlays() {
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for (num_text = fret_inlays) {
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fret = num_text[0];
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x0 = fret_scale_length(fret-1);
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x1 = fret_scale_length(fret);
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diff = x0 - x1;
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translate([0, lerp(x0, x1, 0.5), -0.5])
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linear_extrude(30)
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text(text = num_text[1], font = JP_Serif_Font, halign = "center", valign = "center", size = clamp(2, diff-fret_width*2-2, 10));
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if (fret <= num_frets) {
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x0 = fret_scale_length(fret-1);
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x1 = fret_scale_length(fret);
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diff = x0 - x1;
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translate([0, lerp(x0, x1, 0.5), -0.5])
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linear_extrude(30)
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text(text = num_text[1], font = JP_Serif_Font, halign = "center", valign = "center", size = clamp(2, diff-fret_width*2-2, 10));
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}
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}
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}
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module fret_side_markers() {
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for (num_text = fret_inlays) {
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fret = num_text[0];
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x0 = fret_scale_length(fret-1);
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x1 = fret_scale_length(fret);
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diff = x0 - x1;
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rotate([0, -90, 0])
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translate([0, x1, neck_width/2-3])
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linear_extrude(50)
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rotate(-35)
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text(text = str(fret), font = JP_Serif_Font, halign = "right", valign = "center", size = 5);
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if (fret <= num_frets) {
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x0 = fret_scale_length(fret-1);
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x1 = fret_scale_length(fret);
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diff = x0 - x1;
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rotate([0, -90, 0])
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translate([0, x1, neck_width/2-3])
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linear_extrude(50)
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rotate(-35)
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text(text = str(fret), font = JP_Serif_Font, halign = "right", valign = "center", size = 5);
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}
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}
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}
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@ -158,22 +181,22 @@ module cf_tube(x1, x2, tolerance = 0.3, VLH = false) {
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tolerance = tolerance + (VLH ? 0.3 : 0);
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translate([0, x2, 0])
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rotate([-90,0,0])
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cylinder(h=x1-x2, d=CF_Tube_Dia+tolerance, $fn=360);
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cylinder(h=x1-x2, d=CF_Tube_OD+tolerance, $fn=360);
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hull() {
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translate([0, x2])
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rotate([-90,0,0])
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cylinder(h=0.2, d=CF_Tube_Dia*1.2+tolerance, $fn=360);
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cylinder(h=0.2, d=CF_Tube_OD*1.2+tolerance, $fn=360);
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translate([0, x2+5])
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rotate([-90,0,0])
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cylinder(h=0.2, d=CF_Tube_Dia+tolerance, $fn=360);
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cylinder(h=0.2, d=CF_Tube_OD+tolerance, $fn=360);
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}
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hull() {
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translate([0, x1])
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rotate([-90,0,0])
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cylinder(h=0.2, d=CF_Tube_Dia*1.2+tolerance, $fn=360);
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cylinder(h=0.2, d=CF_Tube_OD*1.2+tolerance, $fn=360);
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translate([0, x1-5])
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rotate([-90,0,0])
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cylinder(h=0.2, d=CF_Tube_Dia+tolerance, $fn=360);
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cylinder(h=0.2, d=CF_Tube_OD+tolerance, $fn=360);
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}
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}
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@ -375,8 +398,39 @@ module bridge(string_spacing=18, string_margin=4.5, num_strings=3, target_neck_t
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}
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}
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echo(fret_scale_length(0) - fret_scale_length(8)); // 225.724
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echo(fret_scale_length(8) - fret_scale_length(24)); // 240.335
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module Nylon6String() {
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fsl_mm = fret_scale_length(0);
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echo(str("Making a Nylon 6 String with scale length ", fsl_mm, "mm = ", fsl_mm/25.4, "in"))
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assert(fret_scale_length(0) == Classical_Short_Scale_mm); // Make sure the function correctly uses our changed global
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num_frets = 20;
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num_strings = 6;
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// 56mm wide neck
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string_spacing = 10; // 50mm E to e
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string_margin = 3; // +6
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scallop_depth = 2;
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target_neck_thickness = 22;
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// neck(num_frets=num_frets, num_strings=num_strings, string_margin=string_margin, string_spacing=string_spacing);
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module CF_Span() {
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CF_Square();
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translate([0, 140, CF_Square_Width]) CF_Square();
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translate([0, 280, CF_Square_Width*2]) CF_Square();
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}
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color([0.4, 0.5, 0.5]) translate([ 12, -40, -16]) CF_Span();
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color([0.4, 0.5, 0.5]) translate([-12, -40, -16]) CF_Span();
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CF_Tube();
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%neck(num_frets=num_frets, num_strings=num_strings, string_margin=string_margin, string_spacing=string_spacing, scallop_depth=scallop_depth, target_neck_thickness=target_neck_thickness);
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// Debug markers to aid part slicing eyeballing
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for (i = [150:250:1000]) {
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%translate([50,i,0]) union() {text(str(i, "mm")); cube([50, 1, 1], center=true);}
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}
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}
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// echo(fret_scale_length(0) - fret_scale_length(8)); // 225.724
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// echo(fret_scale_length(8) - fret_scale_length(24)); // 240.335
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// fret_tube(0, 8);
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// //translate([30, 0, 0])
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// fret_tube(8, 24);
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@ -385,5 +439,13 @@ echo(fret_scale_length(8) - fret_scale_length(24)); // 240.335
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// UBassTuner();
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// fret_tube_filler(24, 100);
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tailpiece();
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// tailpiece();
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// bridge();
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Guitar_Scale_Length_mm = Classical_Short_Scale_mm;
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// Nylon6String();
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difference() {
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translate([-15, -60, 0]) cube([50, 120, 13]);
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translate([0, 55, 8]) rotate([180,0,0]) NylonTuner();
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}
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@ -0,0 +1,46 @@
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// Classical Guitar style headstock tuners, comes in a mirrored pair of 3 machine heads with a metal plate
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module NylonTuner() {
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cyl_hd_fn = $preview ? 32 : 512;
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cyl_ld_fn = $preview ? 24 : 72;
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earshaft_diameter = 6;
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ear_height = 13;
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ear_diameter = 22.1;
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peg_diameter = 6.0; // Closer to 5.7mm
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peg_length = 28;
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peg_spacing = 35.0;
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peg_string_diameter = 2.2+0.1;
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plate_width = 16.6 + 1.4;
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plate_length = 111;
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plate_thickness = 1.1; // Not really used for our purposes
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outer_thickness = 10;
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// screwhole_diameter = 3;
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screwtap_diameter = 1.7;
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screw_length = 7.1 - plate_thickness;
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module peg() {
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render() difference() {
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cylinder(h=peg_length, d=peg_diameter, $fn=cyl_hd_fn);
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translate([0, 0, 14.1]) rotate([90, 0, 0]) cylinder(h=peg_diameter, d=peg_string_diameter, $fn=cyl_ld_fn, center=true);
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translate([0, 0, 22.7]) rotate([90, 0, 0]) cylinder(h=peg_diameter, d=peg_string_diameter, $fn=cyl_ld_fn, center=true);
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}
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}
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module ear() {
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rotate([0, 90, 0]) cylinder(h=22.6, d=earshaft_diameter, $fn=cyl_ld_fn);
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rotate([0, 90, 0]) translate([0,0,22.6-ear_height]) cylinder(h=ear_height, d=ear_diameter, $fn=cyl_hd_fn);
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}
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// Plate and clearance
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translate([-plate_width/2, 0, -outer_thickness]) cube([plate_width, plate_length, outer_thickness]);
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// Pegs
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for (i = [0:2]) {
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// Peg
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translate([0, i*peg_spacing + 16, 0]) peg();
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// Ear
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translate([plate_width/2, i*peg_spacing + 22.5, -earshaft_diameter/2-2.5]) ear();
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}
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// Mounting holes
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for (i = [6, 39, 75, 105]) {
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translate([0, i, 0]) cylinder(h=screw_length, d=screwtap_diameter, $fn=cyl_ld_fn);
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}
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}
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@ -1,4 +1,8 @@
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Guitar_Scale_Length_mm = 648;
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Fender_Scale_mm = 648; // Actually 25.5inch = 647.7mm
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Classical_Normal_Scale_mm = 650; // about 25.59inch
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Classical_Short_Scale_mm = 635; // = 25inch
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Guitar_Scale_Length_mm = Fender_Scale_mm;
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ln2 = ln(2);
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function log2(x) = ln(x)/ln2;
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function fret_scale_length(n) = Guitar_Scale_Length_mm * 2^(-n/12);
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