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Justin Lin
329
examples/spiral/spring_dog.scad
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329
examples/spiral/spring_dog.scad
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use <rounded_cylinder.scad>;
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use <helix_extrude.scad>;
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use <shape_circle.scad>;
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use <arc.scad>;
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use <ellipse_extrude.scad>;
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use <shape_ellipse.scad>;
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use <shape_glued2circles.scad>;
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use <part/connector_peg.scad>;
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part = "PREVIEW"; // [FRONT, SPRING, BACK, PREVIEW]
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head_radius = 15;
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spring_levels = 20;
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line_thickness = 4;
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line_distance = 1.5;
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peg_radius = 2.5;
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plate_h = 6;
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spacing = 0.4;
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module toy_spring(radius, levels, sides, line_thickness, line_distance) {
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$fn = 4;
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spring = shape_circle(radius = line_thickness / 2);
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helix_extrude(spring,
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radius = radius,
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levels = levels,
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level_dist = line_thickness + line_distance,
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$fn = sides
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);
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if(line_distance != 0) {
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spring_gap = shape_circle(radius = line_distance / 2);
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#translate([0, 0, line_thickness / 2 + line_distance / 2])
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helix_extrude(spring_gap,
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radius = radius,
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levels = levels,
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level_dist = line_thickness + line_distance,
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$fn = sides
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);
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}
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}
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module dog_back(head_r, peg_radius) {
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$fn = 36;
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module foot() {
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translate([head_r, 0, 0])
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union() {
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color("PapayaWhip")
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ellipse_extrude(head_r / 3)
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polygon(shape_ellipse([head_r / 3, head_r / 2]));
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color("Maroon")
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linear_extrude(head_r)
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circle(head_r / 8);
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color("Goldenrod")
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translate([head_r / 45, 0, head_r / 2])
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rotate([0, -15, 0])
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rounded_cylinder(
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radius = [head_r / 5, head_r / 3.5],
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h = head_r * 1.25,
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round_r = 2
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);
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}
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}
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module feet() {
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foot();
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mirror([1, 0, 0]) foot();
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}
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module body_feet() {
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translate([0, -head_r / 5, -head_r * 1.65])
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feet();
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color("Goldenrod") scale([1, 1.25, 1])
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difference() {
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sphere(head_r);
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translate([-head_r, head_r / 6, -head_r])
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cube(head_r * 2);
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}
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}
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module back() {
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mirror([0, 1, 0])
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body_feet();
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rotate([-36.5, 0, 0])
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color("Goldenrod")
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linear_extrude(head_r * 2, scale = 0.5)
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circle(head_r / 6);
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}
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back();
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color("Goldenrod")
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translate([0, -head_r * 0.2, 0])
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rotate([90, 0, 0])
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connector_peg(peg_radius, spacing = spacing);
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}
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module spring_dog_spring(head_r, spring_levels, line_thickness, line_distance, peg_radius, plate_h, spacing) {
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spring_sides = 36;
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h = spring_levels * line_thickness;
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module plate_back() {
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difference() {
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linear_extrude(plate_h + spacing)
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circle(head_r);
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connector_peg(peg_radius, spacing = spacing, void = true, $fn = spring_sides);
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}
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}
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module plate_front() {
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linear_extrude(plate_h + spacing)
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circle(head_r);
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translate([0, 0, plate_h + spacing])
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connector_peg(peg_radius, spacing = spacing, $fn = spring_sides);
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}
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color("yellow") {
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plate_back();
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translate([0, 0, line_thickness / 2]) toy_spring(
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head_r - line_thickness / 1.5,
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spring_levels,
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spring_sides,
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line_thickness,
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line_distance
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);
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translate([0, 0, h + line_distance * spring_levels])
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plate_front();
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}
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}
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module dog_front(head_r, peg_radius, spacing) {
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$fn = 36;
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module head() {
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module head_nose() {
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color("Goldenrod")
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rotate([-15, 0, 0])
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scale([1, 0.9, 0.9])
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sphere(head_r);
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// nose
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color("PapayaWhip")
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translate([0, -head_r * 0.45, -head_r / 5])
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rotate([85, 0, 0])
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scale([1.25, 0.8, 1])
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rounded_cylinder(
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radius = [head_r / 2, head_r / 6],
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h = head_r * 1.25,
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round_r = 4
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);
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color("black")
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translate([0, -head_r * 1.6, 0])
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rotate([15, 0, 0])
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scale([1.25, 1, 1])
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sphere(head_r / 7);
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}
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module eye() {
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translate([head_r / 2, -head_r / 1.75, head_r / 3])
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rotate([-20, 5, 30])
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scale([1.2, 0.5, 1]) {
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color("Goldenrod") sphere(head_r / 3);
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color("white")
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translate([0, 0, -head_r / 15])
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rotate([-25, -10, 0])
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scale([1.1, 1.25, 1.2])
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sphere(head_r / 3.5);
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color("black")
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translate([-head_r / 15, -head_r / 4, -head_r / 12])
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sphere(head_r / 7);
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}
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}
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module eyes() {
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eye();
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mirror([1, 0, 0]) eye();
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}
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module eyebrow() {
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color("black")
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translate([head_r / 2.5, -head_r / 2.5, head_r / 3])
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rotate([60, 15, 30])
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linear_extrude(head_r / 2, center = true) scale([1.5, 1, 1])
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arc(radius = head_r / 3, angle = 120, width = head_r / 20);
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}
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module eyebrows() {
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eyebrow();
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mirror([1, 0, 0]) eyebrow();
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}
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shape_pts = shape_glued2circles(head_r / 2, head_r * 2.5, tangent_angle = 35);
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module ear() {
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color("Maroon")
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rotate([-15, 0, -10])
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translate([-head_r / 2.75, head_r / 15, -head_r / 2.75])
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rotate([0, -60, 0])
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scale([1.25, 1, 1]) intersection() {
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translate([head_r, 0, 0])
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linear_extrude(head_r)
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polygon(shape_pts);
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difference() {
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sphere(head_r);
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sphere(head_r - head_r / 10);
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}
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}
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}
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module ears() {
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ear();
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mirror([1, 0, 0]) ear();
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}
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head_nose();
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eyes();
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eyebrows();
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ears();
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}
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module foot() {
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translate([head_r, -head_r / 11, 0]) {
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color("PapayaWhip")
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ellipse_extrude(head_r / 3)
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polygon(
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shape_ellipse([head_r / 3, head_r / 2])
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);
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color("Maroon")
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linear_extrude(head_r)
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circle(head_r / 8);
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color("Goldenrod")
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translate([head_r / 45, 0, head_r / 2])
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rotate([0, -15, 0])
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rounded_cylinder(
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radius = [head_r / 5, head_r / 3.5],
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h = head_r * 1.25,
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round_r = 2
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);
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}
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}
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module feet() {
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foot();
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mirror([1, 0, 0]) foot();
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}
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module body_feet() {
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translate([0, -head_r / 5, -head_r * 1.65])
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feet();
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color("Goldenrod")
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scale([1, 1.25, 1])
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difference() {
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sphere(head_r);
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translate([-head_r, head_r / 6, -head_r])
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cube(head_r * 2);
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}
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}
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module front() {
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body_feet();
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// neck
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rotate([60, 0, 0]) {
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color("Goldenrod")
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linear_extrude(head_r * 2)
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circle(head_r / 4);
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color("green")
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translate([0, 0, head_r * 1.1])
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rotate([-10, 0, 0])
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rotate_extrude()
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translate([head_r / 4, 0, 0])
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circle(head_r / 10);
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}
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}
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translate([0, -head_r * 1.75 , head_r * 1.3])
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head();
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difference() {
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front();
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translate([0, head_r * 0.209, 0]) rotate([90, 0, 0])
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connector_peg(peg_radius, spacing = spacing, void = true, $fn = 36);
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}
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}
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if(part == "FRONT") {
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dog_front(head_radius, peg_radius, spacing);
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} else if(part == "SPRING") {
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spring_dog_spring(head_radius, spring_levels, line_thickness, line_distance, peg_radius, plate_h, spacing);
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} else if(part == "BACK") {
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dog_back(head_radius, peg_radius);
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}
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else {
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dog_front(head_radius, peg_radius, spacing);
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translate([0, spring_levels * (line_thickness + line_distance) + plate_h + spacing, 0]) {
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rotate([90, 0, 0])
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spring_dog_spring(head_radius, spring_levels, line_thickness, line_distance, peg_radius, plate_h, spacing);
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translate([0, 3.25, 0]) dog_back(head_radius, peg_radius);
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}
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}
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