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Refactor box generator & add more parameters.

This commit is contained in:
Jesse D. McDonald 2018-01-14 00:06:21 -06:00
parent ec51898f0b
commit ecf7566467
1 changed files with 164 additions and 106 deletions
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2d/box/box.scad
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@ -1,27 +1,40 @@
mode = "project"; // default mode = "2D"; // default
//mode = "parts"; //mode = "layout";
//mode = "assembly"; //mode = "assembly";
thickness = 3.25; // 3.25mm = 1/8"
spacing = 3.25;
outer_width = 52*0.75;
outer_height = 52*3*0.75;
outer_depth = 52*1.333*0.75;
golden_ratio = 1.61803398875; golden_ratio = 1.61803398875;
notch_size = golden_ratio*thickness; inch = 25.4/*mm*/;
notches_w = round((outer_width - 6*thickness) / (2*notch_size));
notches_h = round((outer_height - 6*thickness) / (2*notch_size));
notches_d = round((outer_depth - 6*thickness) / (2*notch_size));
module label(label_text) { thickness = 3.25; // 3.25mm = 1/8" medium draftboard
if (mode != "project") text(label_text, halign="center", valign="center"); spacing = thickness;
} explode = $t*(5*thickness);
outer_width = 5*inch;
outer_depth = outer_width/golden_ratio;
outer_height = outer_depth/golden_ratio;
inc_top = true;
inc_bottom = true;
inc_left = true;
inc_right = true;
inc_front = true;
inc_back = true;
notch_margin = 3*thickness;
notch_size = golden_ratio*thickness;
notches_w = round((outer_width - 2*notch_margin) / (2*notch_size));
notches_h = round((outer_height - 2*notch_margin) / (2*notch_size));
notches_d = round((outer_depth - 2*notch_margin) / (2*notch_size));
inc_labels = mode == "layout" || mode == "assembly";
label_size = min(outer_width, min(outer_depth, outer_height)) / 5;
// 2D notch pattern for an edge from [-width/2,0] to [width/2,0] in the XY plane with a +Y normal. // 2D notch pattern for an edge from [-width/2,0] to [width/2,0] in the XY plane with a +Y normal.
// Meant to be subtracted from the shape with difference(). // Meant to be subtracted from the shape with difference().
module notches_neg(n, width, depth=thickness) { module notches(n, width, depth=thickness) {
// The side with notches cut out and the remainder flush.
module notches_neg(n, width, depth=thickness) {
// n notches + n-1 spaces // n notches + n-1 spaces
notch_width = width / (2*n - 1); notch_width = width / (2*n - 1);
space_width = notch_width; space_width = notch_width;
@ -29,121 +42,166 @@ module notches_neg(n, width, depth=thickness) {
translate([-width/2 + i*notch_width + i*space_width + notch_width/2, -depth/2, 0]) translate([-width/2 + i*notch_width + i*space_width + notch_width/2, -depth/2, 0])
square([notch_width, depth], center=true); square([notch_width, depth], center=true);
} }
} }
// The inverse of notches_neg() for the same parameters, for the mating edge. // The inverse of notches_neg() for the same parameters, for the mating edge.
module notches_pos(n, width, depth=thickness) { module notches_pos(n, width, depth=thickness, extra_width=10000) {
// n spaces + n-1 notches // n spaces + n-1 notches
space_width = width / (2*n - 1); space_width = width / (2*n - 1);
notch_width = space_width; notch_width = space_width;
translate([-1e6/2 - width/2, -depth/2, 0]) square([1e6, depth], center=true); translate([-extra_width/2 - width/2, -depth/2, 0]) square([extra_width, depth], center=true);
for (i = [0 : n-1]) { for (i = [0 : n-1]) {
translate([-width/2 + (i+1)*space_width + i*notch_width + notch_width/2, -depth/2, 0]) translate([-width/2 + (i+1)*space_width + i*notch_width + notch_width/2, -depth/2, 0])
square([notch_width, depth], center=true); square([notch_width, depth], center=true);
} }
translate([10000/2 + width/2, -depth/2, 0]) square([10000, depth], center=true); translate([extra_width/2 + width/2, -depth/2, 0]) square([extra_width, depth], center=true);
}
if (n < 0) notches_neg(-n, width, depth);
else if (n > 0) notches_pos( n, width, depth);
} }
module panel(label_text, xsize, ysize, yp, xn, yn, xp) {
difference() {
square([xsize, ysize], center=true);
translate([0,ysize/2+0.005,0]) rotate([0,0,0]) notches(yp, xsize - 2*notch_margin);
translate([-xsize/2-0.005,0,0]) rotate([0,0,90]) notches(xn, ysize - 2*notch_margin);
translate([0,-ysize/2-0.005,0]) rotate([0,0,180]) notches(yn, xsize - 2*notch_margin);
translate([xsize/2+0.005,0,0]) rotate([0,0,270]) notches(xp, ysize - 2*notch_margin);
children();
if (inc_labels) text(label_text, size=label_size, halign="center", valign="center");
}
}
module top_cutouts() {}
module top_side() { module top_side() {
difference() { panel("Top", outer_width, outer_depth,
square([outer_width, outer_depth], center=true); inc_back ? -notches_w : 0,
translate([0,outer_depth/2+0.005,0]) rotate([0,0,0]) notches_neg(notches_w, outer_width - 6*thickness); inc_left ? -notches_d : 0,
translate([-outer_width/2-0.005,0,0]) rotate([0,0,90]) notches_neg(notches_d, outer_depth - 6*thickness); inc_front ? -notches_w : 0,
translate([0,-outer_depth/2-0.005,0]) rotate([0,0,180]) notches_neg(notches_w, outer_width - 6*thickness); inc_right ? -notches_d : 0) {
translate([outer_width/2+0.005,0,0]) rotate([0,0,270]) notches_neg(notches_d, outer_depth - 6*thickness); top_cutouts();
label("Top");
} }
} }
module bottom_cutouts() {}
module bottom_side() { module bottom_side() {
difference() { panel("Bottom", outer_width, outer_depth,
square([outer_width, outer_depth], center=true); inc_front ? -notches_w : 0,
translate([0,outer_depth/2+0.005,0]) rotate([0,0,0]) notches_neg(notches_w, outer_width - 6*thickness); inc_left ? -notches_d : 0,
translate([-outer_width/2-0.005,0,0]) rotate([0,0,90]) notches_neg(notches_d, outer_depth - 6*thickness); inc_back ? -notches_w : 0,
translate([0,-outer_depth/2-0.005,0]) rotate([0,0,180]) notches_neg(notches_w, outer_width - 6*thickness); inc_right ? -notches_d : 0) {
translate([outer_width/2+0.005,0,0]) rotate([0,0,270]) notches_neg(notches_d, outer_depth - 6*thickness); bottom_cutouts();
label("Bottom");
} }
} }
module left_cutouts() {}
module left_side() { module left_side() {
difference() { panel("Left", outer_depth, outer_height,
square([outer_height, outer_depth], center=true); inc_top ? notches_d : 0,
translate([0,outer_depth/2+0.005,0]) rotate([0,0,0]) notches_neg(notches_h, outer_height - 6*thickness); inc_back ? -notches_h : 0,
translate([-outer_height/2-0.005,0,0]) rotate([0,0,90]) notches_pos(notches_d, outer_depth - 6*thickness); inc_bottom ? notches_d : 0,
translate([0,-outer_depth/2-0.005,0]) rotate([0,0,180]) notches_neg(notches_h, outer_height - 6*thickness); inc_front ? -notches_h : 0) {
translate([outer_height/2+0.005,0,0]) rotate([0,0,270]) notches_pos(notches_d, outer_depth - 6*thickness); left_cutouts();
label("Left");
} }
} }
module right_cutouts() {}
module right_side() { module right_side() {
difference() { panel("Right", outer_depth, outer_height,
square([outer_height, outer_depth], center=true); inc_top ? notches_d : 0,
translate([0,outer_depth/2+0.005,0]) rotate([0,0,0]) notches_neg(notches_h, outer_height - 6*thickness); inc_front ? -notches_h : 0,
translate([-outer_height/2-0.005,0,0]) rotate([0,0,90]) notches_pos(notches_d, outer_depth - 6*thickness); inc_bottom ? notches_d : 0,
translate([0,-outer_depth/2-0.005,0]) rotate([0,0,180]) notches_neg(notches_h, outer_height - 6*thickness); inc_back ? -notches_h : 0) {
translate([outer_height/2+0.005,0,0]) rotate([0,0,270]) notches_pos(notches_d, outer_depth - 6*thickness); right_cutouts();
label("Right");
} }
} }
module front_cutouts() {}
module front_side() { module front_side() {
difference() { panel("Front", outer_width, outer_height,
square([outer_width, outer_height], center=true); inc_top ? notches_w : 0,
translate([0,outer_height/2+0.005,0]) rotate([0,0,0]) notches_pos(notches_w, outer_width - 6*thickness); inc_left ? notches_h : 0,
translate([-outer_width/2-0.005,0,0]) rotate([0,0,90]) notches_pos(notches_h, outer_height - 6*thickness); inc_bottom ? notches_w : 0,
translate([0,-outer_height/2-0.005,0]) rotate([0,0,180]) notches_pos(notches_w, outer_width - 6*thickness); inc_right ? notches_h : 0) {
translate([outer_width/2+0.005,0,0]) rotate([0,0,270]) notches_pos(notches_h, outer_height - 6*thickness); front_cutouts();
label("Front");
} }
} }
module back_cutouts() {}
module back_side() { module back_side() {
difference() { panel("Back", outer_width, outer_height,
square([outer_width, outer_height], center=true); inc_top ? notches_w : 0,
translate([0,outer_height/2+0.005,0]) rotate([0,0,0]) notches_pos(notches_w, outer_width - 6*thickness); inc_right ? notches_h : 0,
translate([-outer_width/2-0.005,0,0]) rotate([0,0,90]) notches_pos(notches_h, outer_height - 6*thickness); inc_bottom ? notches_w : 0,
translate([0,-outer_height/2-0.005,0]) rotate([0,0,180]) notches_pos(notches_w, outer_width - 6*thickness); inc_left ? notches_h : 0) {
translate([outer_width/2+0.005,0,0]) rotate([0,0,270]) notches_pos(notches_h, outer_height - 6*thickness); back_cutouts();
label("Back");
} }
} }
// Optimized for height > depth > width.
module part_layout_hdw() {
if (inc_front) front_side();
translate([-(outer_width/2 + spacing + outer_depth/2), 0, 0]) {
if (inc_left) left_side();
translate([0, -(outer_height/2 + spacing + outer_width/2), 0]) {
if (inc_bottom) rotate([0,0,270]) bottom_side();
}
translate([-(outer_depth/2 + spacing + outer_width/2), 0, 0]) {
if (inc_back) back_side();
}
translate([0, outer_height/2 + spacing + outer_width/2, 0]) {
if (inc_top) rotate([0,0,90]) top_side();
}
}
translate([outer_width/2 + spacing + outer_depth/2, 0, 0]) {
if (inc_right) right_side();
}
}
// Optimized for width > depth > height.
module part_layout_wdh() {
if (inc_front) front_side();
translate([0, outer_height/2 + spacing + outer_depth/2, 0]) {
if (inc_top) top_side();
translate([-(outer_width/2 + spacing + outer_height/2), 0, 0]) {
if (inc_left) rotate([0,0,270]) left_side();
}
translate([0, outer_depth/2 + spacing + outer_height/2, 0]) {
if (inc_back) rotate([0,0,180]) back_side();
}
translate([outer_width/2 + spacing + outer_height/2, 0, 0]) {
if (inc_right) rotate([0,0,90]) right_side();
}
}
translate([0, -(outer_height/2 + spacing + outer_depth/2), 0]) {
if (inc_bottom) bottom_side();
}
}
module part_layout() {
if (outer_width > outer_height)
part_layout_wdh();
else
part_layout_hdw();
}
module thicken() { module thicken() {
linear_extrude(height=thickness, center=true, convexity=10) children(); linear_extrude(height=thickness, center=true, convexity=10) children();
} }
module std_part_layout() {
translate([0,0,0]) top_side();
translate([-(outer_width/2 + outer_height/2 + spacing), 0, 0]) left_side();
translate([ (outer_width/2 + outer_height/2 + spacing), 0, 0]) right_side();
translate([0, -(outer_depth/2 + outer_height/2 + spacing), 0]) front_side();
translate([0, (outer_depth/2 + outer_height/2 + spacing), 0]) back_side();
translate([0, -(outer_depth + outer_height + 2*spacing), 0]) bottom_side();
}
module part_layout() {
translate([-2*(outer_depth/2 + outer_width/2 + spacing), 0, 0]) back_side();
translate([-1*(outer_depth/2 + outer_width/2 + spacing), 0, 0]) rotate([0,0,90]) left_side();
front_side();
translate([outer_depth/2 + outer_width/2 + spacing, 0, 0]) rotate([0,0,90]) right_side();
translate([outer_depth + outer_width + 2*spacing,(outer_height-outer_depth)/2,0]) top_side();
translate([outer_depth + outer_width + 2*spacing,-(outer_height-outer_depth)/2,0]) bottom_side();
}
module part_assembly() { module part_assembly() {
color("red") translate([0,0, outer_height/2 - thickness/2]) rotate([0,0,0]) thicken() top_side(); if (inc_left) color("red") translate([ -(outer_width/2 - thickness/2 + explode),0,0]) rotate([90,0,270]) thicken() left_side();
color("green") translate([0,0,-outer_height/2 + thickness/2]) rotate([180,0,0]) thicken() bottom_side(); if (inc_front) color("green") translate([0, -(outer_depth/2 - thickness/2 + explode),0]) rotate([90,0,0]) thicken() front_side();
color("blue") translate([-outer_width/2 + thickness/2,0,0]) rotate([0,-90,0]) thicken() left_side(); if (inc_right) color("blue") translate([ (outer_width/2 - thickness/2 + explode),0,0]) rotate([90,0,90]) thicken() right_side();
color("cyan") translate([ outer_width/2 - thickness/2,0,0]) rotate([0, 90,0]) thicken() right_side(); if (inc_back) color("yellow") translate([0, (outer_depth/2 - thickness/2 + explode),0]) rotate([90,0,180]) thicken() back_side();
color("magenta") translate([0,-outer_depth/2 + thickness/2,0]) rotate([ 90,0,0]) thicken() front_side(); if (inc_top) color("cyan") translate([0,0, (outer_height/2 - thickness/2 + explode)]) rotate([0,0,0]) thicken() top_side();
color("yellow") translate([0, outer_depth/2 - thickness/2,0]) rotate([-90,0,0]) thicken() back_side(); if (inc_bottom) color("magenta") translate([0,0,-(outer_height/2 - thickness/2 + explode)]) rotate([180,0,0]) thicken() bottom_side();
} }
if (mode == "project") if (mode == "assembly")
part_layout(); part_assembly();
else if (mode == "parts") else if (mode == "layout")
thicken() part_layout(); thicken() part_layout();
else else
part_assembly(); part_layout();