84 lines
2.8 KiB
OpenSCAD
84 lines
2.8 KiB
OpenSCAD
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$fn=500;
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// * b l
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only = "b";
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// Global parameters passed cleanly into the modules
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radius = 19;
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cut_radius = 16.5;
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cut_squash = 0.85;
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height = 30;
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twist = 90;
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label1 = "40200";
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label1_size = 3.8;
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label2 = ".2";
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label2_size = 2.7;
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label3 = ".12";
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label3_size = 2.7;
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if (only == "*" || only == "b") {
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color("blue")
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ball(radius=radius, cut_radius=cut_radius, height=height, twist=twist, label1=label1, label1_size=label1_size, label2=label2, label2_size=label2_size, label3=label3, label3_size=label3_size,render_text=false);
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}
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if (only == "*" || only == "l") {
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color("magenta")
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_ball_text(radius=radius, height=height, twist=twist, label1=label1, label1_size=label1_size, label2=label2, label2_size=label2_size, label3=label3, label3_size=label3_size);
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}
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module ball(radius, cut_radius, height, twist=90, slices=200, scale_base=0.5, label1, label1_size, label2, label2_size, label3, label3_size, render_text=true) {
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p_step = 2/slices;
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h_step = height/slices;
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t_step = twist/slices;
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sf_range = 1-scale_base;
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difference() {
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translate([0, 0, height/2])
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union() {
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for (p=[-1 : p_step : 1-p_step]) {
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p2 = p+p_step;
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sf1 = scale_base + sf_range*cos(p*90);
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sf2 = scale_base + sf_range*cos(p2*90);
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translate([0, 0, p*(height/2)])
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rotate([0, 0, p*(twist/2)])
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scale([sf1, sf1, 1])
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linear_extrude(height=h_step, twist=-t_step, scale=sf2/sf1)
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_ball_flat(radius=radius, cut_radius=cut_radius);
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}
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}
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_ball_text(radius=radius, height=height, twist=twist, label1=label1, label1_size=label1_size, label2=label2, label2_size=label2_size, label3=label3, label3_size=label3_size);
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}
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}
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module _ball_text(radius, height, twist, label1, label1_size, label2, label2_size, label3, label3_size) {
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// Counter the initial slice rotation
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rotate([0, 0, -1*(twist/2)])
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linear_extrude(height=1.01, center=false)
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mirror([1, 0]) {
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if (label1 != "") {
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text(text=label1, font="JetBrains Mono", halign="center", valign="center", size=label1_size);
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}
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if (label2 != "") {
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translate([0, label1_size * 1.2, 0])
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text(text=label2, font="JetBrains Mono", halign="center", valign="center", size=label2_size);
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}
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if (label3 != "") {
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translate([0, label1_size * -1.2, 0])
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text(text=label3, font="JetBrains Mono", halign="center", valign="center", size=label3_size);
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}
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}
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}
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module _ball_flat(radius, cut_radius) {
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difference() {
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circle(r=radius);
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for (x=[-1, 1], y=[-1, 1]) {
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translate([x*radius, y*radius])
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rotate([0, 0, 45 * x * y])
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scale([cut_squash, 1, 1])
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circle(r=cut_radius);
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}
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}
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}
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