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Justin Lin
2019-09-24 13:44:02 +08:00
parent 34dc0d2f3a
commit f29e410654
1 changed files with 86 additions and 0 deletions
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examples/triangle2square/triangle2square_box.scad Normal file
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include <line2d.scad>;
include <hollow_out.scad>;
include <box_extrude.scad>;
include <triangle2square.scad>;
tri_side_leng = 100;
height = 30;
spacing = 0.4;
ring_width = 1.5;
shaft_r = 1;
module triangle2square_box(type, tri_side_leng, height, spacing, ring_width, shaft_r) {
half_tri_side_leng = tri_side_leng / 2;
half_h = height / 2;
joint_ring_inner = shaft_r + spacing;
joint_ring_outer = joint_ring_inner + ring_width;
joint_r_outermost = joint_ring_outer + spacing;
module joint() {
module joint_ring() {
hollow_out(ring_width)
circle(joint_ring_outer);
}
ring_height = height / 3 - spacing;
linear_extrude(ring_height) joint_ring();
translate([0, 0, height - ring_height])
linear_extrude(ring_height) joint_ring();
translate([0, 0, half_h])
linear_extrude(height / 3, center = true)
line2d([0, 0], [joint_r_outermost, 0], shaft_r * 2, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
// pillar
linear_extrude(height) circle(shaft_r);
}
offsetd = -spacing / 2;
tri_sq = triangle2square(tri_side_leng);
module 2d_tri_square() {
difference() {
offset(offsetd) polygon(tri_sq[0][0]);
translate(tri_sq[1][2]) circle(joint_r_outermost);
}
difference() {
offset(offsetd) polygon(tri_sq[0][1]);
translate(tri_sq[1][0]) circle(joint_ring_inner);
}
difference() {
offset(offsetd) polygon(tri_sq[0][2]);
translate(tri_sq[1][0]) circle(joint_r_outermost);
translate(tri_sq[1][1]) circle(joint_ring_inner);
}
difference() {
offset(offsetd) polygon(tri_sq[0][3]);
translate(tri_sq[1][2]) circle(joint_ring_inner);
translate(tri_sq[1][1]) circle(joint_r_outermost);
}
}
if(type == "CONTAINER") {
box_extrude(height = height, shell_thickness = ring_width)
2d_tri_square();
translate(tri_sq[1][0]) rotate(65) joint();
translate(tri_sq[1][1]) rotate(170) joint();
translate(tri_sq[1][2]) rotate(275) joint();
}
else if(type == "COVER") {
box_extrude(height = ring_width * 2, shell_thickness = ring_width)
mirror([1, 0, 0])
offset(-ring_width - spacing) 2d_tri_square();
linear_extrude(ring_width) mirror([1, 0, 0]) 2d_tri_square();
}
}
$fn = 36;
triangle2square_box("CONTAINER", tri_side_leng, height, spacing, ring_width, shaft_r);
triangle2square_box("COVER", tri_side_leng, height, spacing, ring_width, shaft_r);