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[project_box] Clean up dimensions API
Use coordinate triples to represent the 3D volumes being built upon.
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parent
a01323641b
commit
4fabdf070d
3 changed files with 63 additions and 57 deletions
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@ -3,7 +3,6 @@ $fn=50;
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mode = "case"; // ["case", "lid", "all"]
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project_box(50, 70,
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above=0,
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project_box([50, 70, 0],
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below=1,
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mode=mode);
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@ -34,8 +34,7 @@ module cutouts() {
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square([15,10]);
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}
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project_box(x, y,
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above=z,
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project_box([x, y, z],
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below=10,
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mode=mode) {
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cutouts();
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114
project_box.scad
114
project_box.scad
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@ -22,16 +22,16 @@ corner_radius=3; // [1:10]
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support_radius=5; // [1:10]
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wall_width=3; // [3:10]
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module _rounded_box(h, w, d, r) {
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module _rounded_box(box, r) {
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hull() {
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translate([0 + r,0 + r,0])
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cylinder(h=h,r=r);
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translate([w - r,0 + r,0])
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cylinder(h=h, r=r);
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translate([w - r,d - r,0])
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cylinder(h=h, r=r);
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translate([0 + r,d - r,0])
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cylinder(h=h, r=r);
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cylinder(h=box.z,r=r);
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translate([box.x - r,0 + r,0])
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cylinder(h=box.z, r=r);
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translate([box.x - r,box.y - r,0])
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cylinder(h=box.z, r=r);
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translate([0 + r,box.y - r,0])
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cylinder(h=box.z, r=r);
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}
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}
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@ -43,17 +43,17 @@ module corner_post(h, r) {
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}
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}
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module lid_base(x, y, z, slot_depth=1.5) {
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module lid_base(dimensions, slot_depth=1.5) {
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polyhedron([// bottom face
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[0, 0, 0],
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[x, 0, 0],
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[x, y, 0],
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[0, y, 0],
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[dimensions.x, 0, 0],
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[dimensions.x, dimensions.y, 0],
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[0, dimensions.y, 0],
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// top face
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[slot_depth, 0, z],
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[x - slot_depth, 0, z],
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[x - slot_depth, y, z],
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[slot_depth, y, z]],
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[slot_depth, 0, dimensions.z],
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[dimensions.x - slot_depth, 0, dimensions.z],
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[dimensions.x - slot_depth, dimensions.y, dimensions.z],
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[slot_depth, dimensions.y, dimensions.z]],
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[[0,1,2,3],
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[4,5,1,0],
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[7,6,5,4],
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@ -62,26 +62,29 @@ module lid_base(x, y, z, slot_depth=1.5) {
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[7,4,0,3]]);
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}
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module lid(x, y, z, slot_depth=1.5, wall_width=3, fit_tolerance=0.5) {
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indent_width = x / 4;
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module lid(dimensions, slot_depth=1.5, wall_width=3, fit_tolerance=0.5) {
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indent_width = dimensions.x / 4;
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difference() {
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union() {
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lid_base(x, y, z, slot_depth);
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lid_base([dimensions.x, dimensions.y, dimensions.z], slot_depth);
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// locking tab
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translate([x / 2 - indent_width / 2 - fit_tolerance, y - wall_width - fit_tolerance, 0])
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translate([dimensions.x / 2 - indent_width / 2 - fit_tolerance,
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dimensions.y - wall_width - fit_tolerance,
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0])
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rotate([0, 90, 0])
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cylinder(h=x / 4, r=2*fit_tolerance);
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cylinder(h=dimensions.x / 4, r=2*fit_tolerance);
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}
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// pull handle
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translate([x / 2 - indent_width / 2 - fit_tolerance, y - wall_width + fit_tolerance + 0.001, -0.001]) {
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cube([indent_width,wall_width - 2 * fit_tolerance,0.6 * z]);
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cube([indent_width,2 + wall_width - 2 * fit_tolerance,0.3 * z]);
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translate([dimensions.x / 2 - indent_width / 2 - fit_tolerance,
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dimensions.y - wall_width + fit_tolerance + 0.001,
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-0.001]) {
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cube([indent_width,wall_width - 2 * fit_tolerance,0.6 * dimensions.z]);
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cube([indent_width,2 + wall_width - 2 * fit_tolerance,0.3 * dimensions.z]);
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}
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}
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}
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module project_box(x, y,
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above=20,
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module project_box(box,
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below=10,
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board_thickness=1,
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fit_tolerance=0.5,
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@ -89,12 +92,12 @@ module project_box(x, y,
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support_radius=5,
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wall_width=3,
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mode="case") {
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width=board_x + (fit_tolerance * 2);
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depth=board_y + (fit_tolerance * 2);
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width=box.x + (fit_tolerance * 2);
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depth=box.y + (fit_tolerance * 2);
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lid_width = width + wall_width; // Extends halfway into each side wall
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lid_depth = depth + wall_width; // Extends out of one wall
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lid_height = wall_width; // Replaces most of the top wall
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height=board_thickness + above + below + (fit_tolerance * 2) + lid_height;
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height=board_thickness + box.z + below + (fit_tolerance * 2) + lid_height;
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// case
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if ((mode == "case") || (mode == "all")) {
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@ -102,15 +105,15 @@ module project_box(x, y,
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union() {
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// hollow shell
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difference() {
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_rounded_box(h=height + (wall_width * 2),
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w=width + (wall_width * 2),
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d=depth + (wall_width * 2),
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_rounded_box([width + (wall_width * 2),
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depth + (wall_width * 2),
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height + (wall_width * 2)],
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r=corner_radius);
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translate([wall_width,wall_width,wall_width])
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cube([width, depth, height + (wall_width * 2)]);
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// lid slot
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translate([wall_width / 2, wall_width, height + wall_width + 0.001]) {
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lid_base(lid_width, lid_depth, lid_height);
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lid_base([lid_width, lid_depth, lid_height]);
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}
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}
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// supports
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@ -131,19 +134,23 @@ module project_box(x, y,
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// locking nubs
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translate([wall_width,wall_width,wall_width]) {
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nub_size = fit_tolerance * 2;
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nub_width = board_y / 4;
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nub_width = box.y / 4;
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nub_height = below + board_thickness + (nub_size/2) + (fit_tolerance*2);
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translate([0,board_y / 2 - nub_width / 2,nub_height])
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translate([0,box.y / 2 - nub_width / 2,nub_height])
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rotate([270,0,0])
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cylinder(h=nub_width, r=nub_size/2);
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translate([width,board_y / 2 - nub_width / 2,nub_height])
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translate([width,box.y / 2 - nub_width / 2,nub_height])
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rotate([270,0,0])
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cylinder(h=nub_width, r=nub_size/2);
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}
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if (mode == "all") {
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// lid
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translate([wall_width / 2 + fit_tolerance, wall_width + fit_tolerance, height + wall_width + fit_tolerance]) {
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lid(lid_width - (fit_tolerance * 2), lid_depth - (fit_tolerance * 2), lid_height - (fit_tolerance * 2));
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translate([wall_width / 2 + fit_tolerance,
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wall_width + fit_tolerance,
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height + wall_width + fit_tolerance]) {
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lid([lid_width - (fit_tolerance * 2),
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lid_depth - (fit_tolerance * 2),
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lid_height - (fit_tolerance * 2)]);
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}
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}
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}
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@ -156,7 +163,9 @@ module project_box(x, y,
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translate([lid_width - (fit_tolerance * 2),0,lid_height - (fit_tolerance * 2)]) {
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rotate([0, 180, 0]) {
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difference() {
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lid(lid_width - (fit_tolerance * 2), lid_depth - (fit_tolerance * 2), lid_height - (fit_tolerance * 2));
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lid([lid_width - (fit_tolerance * 2),
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lid_depth - (fit_tolerance * 2),
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lid_height - (fit_tolerance * 2)]);
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translate([wall_width + fit_tolerance, wall_width + fit_tolerance, -0.001])
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children();
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}
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@ -165,39 +174,38 @@ module project_box(x, y,
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}
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}
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module cutout_front(volume) {
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module cutout_front(box) {
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rotate([90, 0, 0])
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linear_extrude(height=volume.y * 2)
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linear_extrude(height=box.y * 2)
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children(0);
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}
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module cutout_back(volume) {
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translate([volume.x,0,0])
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module cutout_back(box) {
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translate([box.x,0,0])
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rotate([90, 0, 180])
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linear_extrude(height=volume.y * 2)
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linear_extrude(height=box.y * 2)
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children(0);
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}
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module cutout_right(volume) {
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module cutout_right(box) {
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rotate([90, 0, 90])
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linear_extrude(height=volume.x * 2)
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linear_extrude(height=box.x * 2)
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children(0);
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}
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module cutout_left(volume) {
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translate([volume.x, volume.y, 0])
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module cutout_left(box) {
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translate([box.x, box.y, 0])
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rotate([90, 0, 270])
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linear_extrude(height=volume.x * 2)
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linear_extrude(height=box.x * 2)
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children(0);
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}
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module cutout_top(volume) {
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linear_extrude(height=volume.y * 2)
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module cutout_top(box) {
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linear_extrude(height=box.y * 2)
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children(0);
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}
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project_box(board_x, board_y,
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above=clearance_above,
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project_box([board_x, board_y, clearance_above],
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below=clearance_below,
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board_thickness=board_thickness,
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fit_tolerance=fit_tolerance,
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