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add heart_chain

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Justin Lin
2019-07-27 16:53:47 +08:00
parent 8d9f6d5f9b
commit f5b3024b09
1 changed files with 101 additions and 0 deletions
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examples/heart_chain.scad Normal file
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include <archimedean_spiral.scad>;
include <arc.scad>;
chars = "3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989";
module heart(radius, center = false) {
rotated_angle = 45;
diameter = radius * 2;
module heart_sub_component() {
translate([-radius * cos(rotated_angle), 0, 0])
rotate(-rotated_angle) union() {
circle(radius);
translate([0, -radius, 0])
square(diameter);
}
}
offsetX = center ? 0 : radius + radius * cos(45);
offsetY = center ? 1.5 * radius * sin(45) - 0.5 * radius : 3 * radius * sin(45);
translate([offsetX, offsetY, 0]) {
heart_sub_component();
mirror([1, 0, 0]) heart_sub_component();
}
}
module heart_with_ears(heart_width, thickness, spacing) {
module ear(radius, thickness, spacing) {
width = radius / 1.5;
linear_extrude(thickness)
arc(radius, [0, 240], width, "LINE_OUTWARD");
translate([0, 0, thickness + spacing])
linear_extrude(thickness)
arc(radius, [240, 360], width, "LINE_OUTWARD");
linear_extrude(thickness * 2 + spacing)
arc(radius, [0, 20], width, "LINE_OUTWARD");
}
heart_radius = 0.5 * heart_width / (1 + cos(45));
ring_radius = heart_radius / 3;
ring_x = (heart_width / 2 + spacing) * 1.075;
ring_y = heart_radius * sin(60);
ring_thickness = 0.5 * (thickness - spacing);
linear_extrude(thickness)
heart(heart_radius, center = true);
translate([ring_x, ring_y, 0])
rotate(-40)
ear(ring_radius, ring_thickness, spacing);
translate([-ring_x, ring_y, 0])
rotate(125)
ear(ring_radius, ring_thickness, spacing);
}
module text_heart(char, width, thickness, spacing) {
radius = 0.5 * width / (1 + cos(45));
half_thickness = thickness / 2;
difference() {
heart_with_ears(width, thickness, spacing);
translate([0, 0, half_thickness])
linear_extrude(half_thickness)
offset(-half_thickness)
heart(radius, center = true);
}
translate([0, radius / 4, half_thickness])
linear_extrude(half_thickness)
text(char, font = "Arial Black", size = radius * 1.2, valign = "center", halign="center");
}
module heart_chain(chars) {
$fn = 48;
heart_thickness = 2.5;
heart_width = 18;
spacing = 0.5;
leng = len(chars);
points_angles = archimedean_spiral(
arm_distance = 20,
init_angle = 720,
point_distance = 23.8,
num_of_points = leng
);
for(i = [0:leng - 1]) {
pt = points_angles[i][0];
angle = points_angles[i][1];
translate(pt)
rotate(angle + 90)
text_heart(chars[i], heart_width, heart_thickness, spacing);
}
}
heart_chain(chars);