85 lines
2.3 KiB
OpenSCAD
85 lines
2.3 KiB
OpenSCAD
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links_count=3;
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//validation=1;
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VALIDATE_INTERSECTION=1;
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use <BOSL/transforms.scad>
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use <BOSL/shapes.scad>
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include <BOSL/constants.scad>
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function get_link_segment_size() = [10, 20, 5];
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function get_link_pin_diameter() = 2;
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module link() {
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segment_size=get_link_segment_size();
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module pin() {
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h=segment_size.y;
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d=get_link_pin_diameter();
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back(h/2) xrot(90) cylinder(h=h, d=d, $fn=$preview ? 10 : 30);
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}
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module pin_socket_area() {
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h=segment_size.y-3;
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d=segment_size.z;
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back(h/2) xrot(90) cylinder(h=h, d=d, $fn=$preview ? 10 : 30);
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}
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module pin_socket() {
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difference() {
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pin_socket_area();
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scale(1.1) pin();
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}
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}
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module joiner() {
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gap=2;
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module arm() {
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arm_size=[segment_size.x*0.9, 2, segment_size.z];
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fwd(segment_size.y/2) right(segment_size.x/4) cuboid(arm_size, fillet=1, edges=EDGES_FRONT + EDGES_Y_ALL);
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}
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module armFront() {
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arm();
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}
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module armBack() {
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scale([1, -1, 1]) arm();
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}
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module armJoiner() {
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joiner_size=[4, segment_size.y, segment_size.z];
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right(segment_size.x/2) cuboid(joiner_size, fillet=1, edges=EDGES_Z_ALL + EDGES_BOTTOM);
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}
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module socketJoiner() {
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joiner_size=[segment_size.x-4,
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segment_size.y-4,
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segment_size.z];
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difference() {
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right(segment_size.x/2 + 2.5) cuboid(joiner_size, fillet=1, edges=EDGES_Z_ALL + EDGES_BOTTOM);
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right(segment_size.x) scale([1, 2, 1]) pin_socket_area();
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}
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}
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socketJoiner();
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armFront();
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armBack();
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armJoiner();
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}
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pin();
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right(segment_size.x) pin_socket();
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joiner();
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}
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segment_size=get_link_segment_size();
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if (!is_undef(validation)) {
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if (validation==VALIDATE_INTERSECTION) {
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intersection() {
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right(0*segment_size.x) link();
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right(1*segment_size.x) link();
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}
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intersection() {
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right(1*segment_size.x) link();
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right(2*segment_size.x) link();
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}
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}
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} else {
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for (i = [0:links_count-1]) {
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right(i*segment_size.x) link();
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}
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}
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