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[WIP] add polyhedron-based catears

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djerun 2025-06-27 09:00:23 +02:00
commit 58fe834489
3 changed files with 187 additions and 96 deletions
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catear_headband.scad
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@ -25,7 +25,12 @@ module catear_v3(height, thickness, fractal=0, side_len=30, bend_factor=0.15, st
C = [-S*bf, S*sf*mn, 0] * R;
D = [-s , 0, 0];
if (debug) translate([0, 0, height]) rotate(90) bezier_curve_debug([A, B, C, D]);
curve_vertices = bezier_curve_vertices([A, B, C, D], $fn);
if (debug) {
translate([0, 0, height]) rotate(90) bezier_curve_debug([A, B, C, D]);
echo("curve_vertices: ", curve_vertices);
}
rotate(90) render_curve(curve_vertices, width=thickness, height=height, chamfer=chamfer);
}
/**
@ -125,96 +130,102 @@ module catear_v1(height, thickness, fractal=0, side_len=30, bend_factor=0.15, st
}
}
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, chamfer=CHAMFER, chamfer_shape=CHAMFER_SHAPE, with_rake=true, details=true, ear_skew=2.0) {
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, chamfer=CHAMFER, chamfer_shape=CHAMFER_SHAPE, with_rake=true, details=true, ear_skew=2.0, ear_version=3) {
$a=size/2*ear_scale;
$delta=2*(acos($a/(size*2))-90);
ear_offset=size*sin(90-$delta/2);
union() {
rotate( ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v3(
debug=debug,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=ear_skew
);
if (ear_version == 3 ) {
rotate( ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v3(
debug=debug,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=ear_skew
);
}
rotate(-ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v3(
debug=false,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=-ear_skew
);
}
}
rotate( ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, -2*height]) catear_v2(
debug=debug,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=ear_skew
);
if (ear_version == 2 ) {
rotate( ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v2(
debug=debug,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=ear_skew
);
}
rotate(-ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v2(
debug=false,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=-ear_skew
);
}
}
rotate( ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, -height]) catear_v1(
debug=debug,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=ear_skew
);
}
rotate(-ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v3(
debug=false,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=-ear_skew
);
}
rotate(-ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, -2*height]) catear_v2(
debug=false,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=-ear_skew
);
}
rotate(-ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, -height]) catear_v1(
debug=false,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=-ear_skew
);
if (ear_version == 1 ) {
rotate( ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v1(
debug=debug,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=ear_skew
);
}
rotate(-ear_angle, [0, 0, 1]) {
translate([-ear_offset, 0, 0]) catear_v1(
debug=false,
height=height,
thickness=thickness,
side_len=size/2*ear_scale,
bend_factor=ear_bend_factor,
stretch_factor=ear_stretch_factor,
chamfer=chamfer,
chamfer_shape=chamfer_shape,
details=details,
skew=-ear_skew
);
}
}
headband(
size=size,
@ -230,4 +241,4 @@ module catear_headband(debug=DEBUG, size=SIZE, height=HEIGHT, thickness=THICKNES
};
}
rotate(-90) catear_headband(ear_bend_factor=0.15, ear_skew=2, debug=true);
rotate(-90) catear_headband(ear_bend_factor=0.15, ear_skew=2, ear_version=3);