catear_headband v0.4 move catear headband to seperate file
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catear_headband.scad
Normal file
97
catear_headband.scad
Normal file
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include <headband.scad>
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module catear(height, thickness, fractal=0, side_len=30, bend_factor=0.5, stretch_factor=1.2, debug=false) {
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$A=[0, side_len/2];
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$B=[0,-side_len/2];
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$C=[-(side_len/2/sin(120))*1.5*stretch_factor, 0];
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$c=sqrt(pow($A.x-$B.x, 2)+pow($A.y-$B.y, 2));
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$b=sqrt(pow($A.x-$C.x, 2)+pow($A.y-$C.y, 2));
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$a=sqrt(pow($C.x-$B.x, 2)+pow($C.y-$B.y, 2));
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$hc=-$C.x;
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$alpha=asin($hc/$b);
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$beta=$alpha;
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$gamma=180-$alpha-$beta;
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$delta=180*bend_factor;
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$bend_radius=$a/(2*cos(90-$delta/2));
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$bend_offset=$bend_radius*sin(90-$delta/2);
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translate([0, -$c/2, 0])
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rotate($beta, [0, 0, 1])
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translate([0, $a/2, 0])
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translate([$bend_offset, 0, 0])
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color("#00ffff") partial_ring(
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part=$delta/360,
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radius=$bend_radius,
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thickness=thickness,
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height=height
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);
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translate([0, $c/2, 0])
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rotate(-$alpha, [0, 0, 1])
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translate([0, -$b/2, 0])
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translate([$bend_offset, 0, 0])
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color("#ff00ff") partial_ring(
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part=$delta/360,
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radius=$bend_radius,
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thickness=thickness,
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height=height
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);
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translate($A) color("#aaaaaa") cylinder(h=height, d=thickness, center=true);
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translate($B) color("#bbbbbb") cylinder(h=height, d=thickness, center=true);
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translate($C) color("#cccccc") cylinder(h=height, d=thickness, center=true);
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if (debug) {
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echo("A", $A, "a", $a, "alpha", $alpha);
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echo("B", $B, "b", $b, "beta ", $beta);
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echo("C", $C, "c", $c, "gamma", $gamma);
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echo("bend_factor", bend_factor);
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echo("delta:", $delta);
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echo("bend_radius", $bend_radius);
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echo("bend_offset", $bend_offset);
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color("#000000") cylinder(h=4, d=4);
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translate($C/2) color("red") cube([$hc, thickness, height*1.1], center=true);
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color("red") cube([thickness, $c, height*1.1], center=true);
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color("red")translate([0, $c/2, 0]) rotate(-$alpha, [0, 0, 1]) translate([0, -$b/2, 0]) cube([thickness,$b, height*1.1], center=true);
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color("red")translate([0, -$c/2, 0]) rotate($beta, [0, 0, 1]) translate([0, $a/2, 0]) cube([thickness, $a, height*1.1], center=true);
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}
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}
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module catear_headband(debug=DEBUG, size=SIZE, height=HEIGHT, thickness=THICKNESS, part=PART, stretch_len=STRETCH_LEN, tip_len=TIP_LEN, tip_bend=TIP_BEND, ear_scale=1.5, ear_bend_factor=0.15, ear_stretch_factor=1.2, ear_angle=42) {
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$a=size/2*ear_scale;
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$delta=2*(acos($a/(size*2))-90);
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ear_offset=size*sin(90-$delta/2);
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union() {
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rotate( ear_angle, [0, 0, 1]) {
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translate([-ear_offset, 0, 0]) catear(
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debug=debug,
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height=height,
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thickness=thickness,
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side_len=size/2*ear_scale,
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bend_factor=ear_bend_factor,
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stretch_factor=ear_stretch_factor
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);
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}
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rotate(-ear_angle, [0, 0, 1]) {
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translate([-ear_offset, 0, 0]) catear(
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debug=false,
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height=height,
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thickness=thickness,
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side_len=size/2*ear_scale,
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bend_factor=ear_bend_factor,
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stretch_factor=ear_stretch_factor
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);
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}
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headband(
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size=size,
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height=height,
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thickness=thickness,
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part=part,
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stretch_len=stretch_len,
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tip_len=tip_len,
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tip_bend=tip_bend
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);
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};
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}
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catear_headband();
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@ -12,61 +12,6 @@ RAKE_WIDTH=1;
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RAKE_STRETCH=1;
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RAKE_STRETCH=1;
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RAKE_CHAMPFER=0.5;
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RAKE_CHAMPFER=0.5;
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module catear(height, thickness, fractal=0, side_len=30, bend_factor=0.5, stretch_factor=1.2, debug=false) {
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$A=[0, side_len/2];
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$B=[0,-side_len/2];
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$C=[-(side_len/2/sin(120))*1.5*stretch_factor, 0];
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$c=sqrt(pow($A.x-$B.x, 2)+pow($A.y-$B.y, 2));
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$b=sqrt(pow($A.x-$C.x, 2)+pow($A.y-$C.y, 2));
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$a=sqrt(pow($C.x-$B.x, 2)+pow($C.y-$B.y, 2));
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$hc=-$C.x;
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$alpha=asin($hc/$b);
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$beta=$alpha;
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$gamma=180-$alpha-$beta;
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$delta=180*bend_factor;
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$bend_radius=$a/(2*cos(90-$delta/2));
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$bend_offset=$bend_radius*sin(90-$delta/2);
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translate([0, -$c/2, 0])
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rotate($beta, [0, 0, 1])
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translate([0, $a/2, 0])
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translate([$bend_offset, 0, 0])
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color("#00ffff") partial_ring(
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part=$delta/360,
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radius=$bend_radius,
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thickness=thickness,
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height=height
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);
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translate([0, $c/2, 0])
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rotate(-$alpha, [0, 0, 1])
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translate([0, -$b/2, 0])
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translate([$bend_offset, 0, 0])
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color("#ff00ff") partial_ring(
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part=$delta/360,
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radius=$bend_radius,
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thickness=thickness,
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height=height
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);
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translate($A) color("#aaaaaa") cylinder(h=height, d=thickness, center=true);
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translate($B) color("#bbbbbb") cylinder(h=height, d=thickness, center=true);
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translate($C) color("#cccccc") cylinder(h=height, d=thickness, center=true);
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if (debug) {
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echo("A", $A, "a", $a, "alpha", $alpha);
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echo("B", $B, "b", $b, "beta ", $beta);
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echo("C", $C, "c", $c, "gamma", $gamma);
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echo("bend_factor", bend_factor);
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echo("delta:", $delta);
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echo("bend_radius", $bend_radius);
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echo("bend_offset", $bend_offset);
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color("#000000") cylinder(h=4, d=4);
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translate($C/2) color("red") cube([$hc, thickness, height*1.1], center=true);
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color("red") cube([thickness, $c, height*1.1], center=true);
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color("red")translate([0, $c/2, 0]) rotate(-$alpha, [0, 0, 1]) translate([0, -$b/2, 0]) cube([thickness, $b, height*1.1], center=true);
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color("red")translate([0, -$c/2, 0]) rotate($beta, [0, 0, 1]) translate([0, $a/2, 0]) cube([thickness, $a, height*1.1], center=true);
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}
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}
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module partial_ring(part, radius, thickness, height) {
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module partial_ring(part, radius, thickness, height) {
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rotate(180-180*part, [0, 0, 1])
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rotate(180-180*part, [0, 0, 1])
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rotate_extrude(angle=360*part)
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rotate_extrude(angle=360*part)
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@ -114,40 +59,6 @@ module headband(debug=DEBUG, size=SIZE, height=HEIGHT, thickness=THICKNESS, part
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};
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};
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}
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}
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module catear_headband(debug=DEBUG, size=SIZE, height=HEIGHT, thickness=THICKNESS, part=PART, stretch_len=STRETCH_LEN, tip_len=TIP_LEN, tip_bend=TIP_BEND, ear_scale=1.4, ear_bend_factor=0.15, ear_stretch_factor=1, ear_angle=42) {
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union() {
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rotate( ear_angle, [0, 0, 1]) {
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translate([-size, 0, 0]) catear(
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debug=debug,
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height=height,
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thickness=thickness,
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side_len=size/2*ear_scale,
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bend_factor=ear_bend_factor,
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stretch_factor=ear_stretch_factor
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);
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}
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rotate(-ear_angle, [0, 0, 1]) {
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translate([-size, 0, 0]) catear(
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debug=false,
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height=height,
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thickness=thickness,
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side_len=size/2*ear_scale,
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bend_factor=ear_bend_factor,
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stretch_factor=ear_stretch_factor
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);
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}
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headband(
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size=size,
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height=height,
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thickness=thickness,
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part=part,
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stretch_len=stretch_len,
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tip_len=tip_len,
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tip_bend=tip_bend
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);
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};
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}
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module bunnyear_headband(debug=DEBUG, size=SIZE, height=HEIGHT, thickness=THICKNESS, part=PART, stretch_len=STRETCH_LEN, tip_len=TIP_LEN, tip_bend=TIP_BEND, ear_scale=0.5, ear_bend_factor=0.2, ear_stretch_factor=10, ear_angle=30) {
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module bunnyear_headband(debug=DEBUG, size=SIZE, height=HEIGHT, thickness=THICKNESS, part=PART, stretch_len=STRETCH_LEN, tip_len=TIP_LEN, tip_bend=TIP_BEND, ear_scale=0.5, ear_bend_factor=0.2, ear_stretch_factor=10, ear_angle=30) {
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catear_headband(
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catear_headband(
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debug=debug,
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debug=debug,
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