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Justin Lin
2022-04-01 13:58:01 +08:00
parent bb9c630e20
commit 356966b8f6
4 changed files with 71 additions and 71 deletions
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52
examples/trefoil_klein_bottle.scad
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@@ -16,21 +16,21 @@ module dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_
module bottom() { module bottom() {
rotate(180) rotate(180)
rotate_extrude() { rotate_extrude() {
ph1 = arc_path(radius = radius2, angle = [180, 360]); ph1 = arc_path(radius = radius2, angle = [180, 360]);
ph2 = bezier_curve(t_step, [ ph2 = bezier_curve(t_step, [
[radius1 + radius2 * 2, 0, 0], [radius1 + radius2 * 2, 0, 0],
[radius1 + radius2 * 2, bottom_height * 0.25, 0], [radius1 + radius2 * 2, bottom_height * 0.25, 0],
[radius1 + radius2 * 0.5, bottom_height * 0.5, 0], [radius1 + radius2 * 0.5, bottom_height * 0.5, 0],
[radius1, bottom_height * 0.75, 0], [radius1, bottom_height * 0.75, 0],
[radius1, bottom_height * 1.015, 0] [radius1, bottom_height * 1.015, 0]
]); ]);
path = concat([for(p = ph1) p + [radius1 + radius2, 0, 0]], ph2); path = concat([for(p = ph1) p + [radius1 + radius2, 0, 0]], ph2);
polyline_join(path) polyline_join(path)
circle(half_thickness); circle(half_thickness);
} }
} }
module tube() { module tube() {
@@ -75,17 +75,17 @@ module dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_
bottom(); bottom();
rotate(-90) rotate(-90)
path_extrude( path_extrude(
shape_circle(radius1 + half_thickness), shape_circle(radius1 + half_thickness),
tube_path tube_path
); );
} }
rotate(-90) rotate(-90)
path_extrude( path_extrude(
shape_circle(radius1 - half_thickness), shape_circle(radius1 - half_thickness),
tube_path2 tube_path2
); );
} }
} }
@@ -94,17 +94,17 @@ module dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_
module trefoil_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn) { module trefoil_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn) {
rotate(90) rotate(90)
dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn); dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn);
translate([0, -26.9, 151.35]) // try-and-error translate([0, -26.9, 151.35]) // try-and-error
rotate([-120, 0, 0]) rotate([-120, 0, 0])
rotate(90) rotate(90)
dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn); dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn);
translate([0, 117.59, 98.975]) // try-and-error translate([0, 117.59, 98.975]) // try-and-error
rotate([120, 0, 0]) rotate([120, 0, 0])
rotate(90) rotate(90)
dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn); dis_connected_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn);
} }
module trefoil_cutted_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn) { module trefoil_cutted_klein_bottle(radius1, radius2, bottom_height, thickness, t_step, fn) {

20
examples/twisted_ring.scad
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@@ -11,18 +11,18 @@ twisted_ring(
); );
translate([95, 0]) translate([95, 0])
twisted_ring( twisted_ring(
[for(p = shape_liquid_splitting(radius = 5, centre_dist = 25)) [p[0], p[1] + 10]], [for(p = shape_liquid_splitting(radius = 5, centre_dist = 25)) [p[0], p[1] + 10]],
r = 25, r = 25,
shape_turns = 3 shape_turns = 3
); );
translate([-110, 0]) translate([-110, 0])
twisted_ring( twisted_ring(
[[17.5, 10], [17.5, 20], [12.5, 20], [12.5, 15], [7.5, 15], [7.5, 20], [2.5, 20], [2.5, 15], [-2.5, 15], [-2.5, 20], [-7.5, 20], [-7.5, 15], [-12.5, 15], [-12.5, 20], [-17.5, 20], [-17.5, 10]], [[17.5, 10], [17.5, 20], [12.5, 20], [12.5, 15], [7.5, 15], [7.5, 20], [2.5, 20], [2.5, 15], [-2.5, 15], [-2.5, 20], [-7.5, 20], [-7.5, 15], [-12.5, 15], [-12.5, 20], [-17.5, 20], [-17.5, 10]],
r = 30, r = 30,
shape_turns = 3 shape_turns = 3
); );
module twisted_ring(shape, r, shape_turns) { module twisted_ring(shape, r, shape_turns) {
t = 360 * shape_turns; t = 360 * shape_turns;

62
examples/walk_torus83_fort.scad
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@@ -106,39 +106,39 @@ module walk_torus83_fort(radius, thickness, height) {
half_leng2 = leng2 / 2; half_leng2 = leng2 / 2;
rotate([90, 0, 0]) rotate([90, 0, 0])
linear_extrude(thickness, center = true) { linear_extrude(thickness, center = true) {
// walkway with doors // walkway with doors
difference() { difference() {
hull() { hull() {
translate([half_leng, 0, 0]) translate([half_leng, 0, 0])
square([leng, height], center = true); square([leng, height], center = true);
translate([-half_leng, -half_h]) translate([-half_leng, -half_h])
polygon(tri_points);
}
translate([-leng / 2.125, 0])
door_df();
half_door_df();
}
translate([-half_leng - height, -half_h])
stairs(height, stair_number);
// walkway without doors
translate([-leng * 2, 0])
rotate([180, 0, 180]) {
translate([half_leng2, 0])
square([leng2, height], center = true);
translate([0, -half_h])
polygon(tri_points); polygon(tri_points);
translate([-height, -half_h]) }
stairs(height, stair_number);
translate([-leng / 2.125, 0])
walk_bottom_leng = 2 * leng - height * 2 - half_leng; door_df();
translate([-walk_bottom_leng - height, -half_h])
square([walk_bottom_leng, height / stair_number]); half_door_df();
}
} }
translate([-half_leng - height, -half_h])
stairs(height, stair_number);
// walkway without doors
translate([-leng * 2, 0])
rotate([180, 0, 180]) {
translate([half_leng2, 0])
square([leng2, height], center = true);
translate([0, -half_h])
polygon(tri_points);
translate([-height, -half_h])
stairs(height, stair_number);
walk_bottom_leng = 2 * leng - height * 2 - half_leng;
translate([-walk_bottom_leng - height, -half_h])
square([walk_bottom_leng, height / stair_number]);
}
}
} }
module one_burst(leng, thickness, height, stair_number) { module one_burst(leng, thickness, height, stair_number) {

8
examples/wormhole.scad
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@@ -25,8 +25,8 @@ module wormhole(length, width, depth, thickness, hole_r) {
difference() { difference() {
rotate([90, 0, 0]) rotate([90, 0, 0])
linear_extrude(width, center = true) linear_extrude(width, center = true)
polyline_join(plane) polyline_join(plane)
square(thickness, center = true); square(thickness, center = true);
translate([(length - r1) / 2, 0]) translate([(length - r1) / 2, 0])
linear_extrude(depth + thickness * 2, center = true) linear_extrude(depth + thickness * 2, center = true)
@@ -43,8 +43,8 @@ module wormhole(length, width, depth, thickness, hole_r) {
translate([(length - r1) / 2, 0, r1 - r2]) translate([(length - r1) / 2, 0, r1 - r2])
rotate_extrude() rotate_extrude()
translate([r2 + half_thickness + hole_r, 0]) translate([r2 + half_thickness + hole_r, 0])
polyline_join(hole_profile) polyline_join(hole_profile)
square(thickness, center = true); square(thickness, center = true);
} }
hole(); hole();