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[project_box] Add lid

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This commit is contained in:
Correl Roush 2022-12-06 16:19:45 -05:00
parent 7cd13f0eb2
commit 635e1a98ae
2 changed files with 77 additions and 42 deletions
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5
fit_test.scad
View file

@ -1,6 +1,9 @@
use <project_box.scad>
$fn=50;
mode = "case"; // ["case", "lid", "all"]
project_box(50, 70,
above=0,
below=1);
below=1,
mode=mode);

114
project_box.scad
View file

@ -1,12 +1,13 @@
/* Project box
A parametric box for electronics projects using perforated circuit boards. The
board is held above the bottom of the box by four corner supports, and snaps
into place to hold it snugly while allowing easy removal.
A parametric box for electronics projects using perforated circuit boards. The
board is held above the bottom of the box by four corner supports, and snaps
into place to hold it snugly while allowing easy removal.
*/
$fn=50;
mode = "case"; // ["case", "lid", "all"]
board_x = 50;
board_y = 70;
board_thickness = 1; // [1:10]
@ -58,6 +59,21 @@ module lid_base(x, y, z, slot_depth=1.5) {
[7,4,0,3]]);
}
module lid(x, y, z, slot_depth=1.5, wall_width=3, fit_tolerance=0.5) {
indent_width = x / 4;
difference() {
union() {
lid_base(x, y, z, slot_depth);
translate([x / 2 - indent_width / 2 - fit_tolerance, y - wall_width - fit_tolerance, 0])
rotate([0, 90, 0])
cylinder(h=x / 4, r=2*fit_tolerance);
}
translate([x / 2 - indent_width / 2 - fit_tolerance, y - wall_width - fit_tolerance, z])
rotate([0, 90, 0])
cylinder(h=x / 4, r=2*fit_tolerance);
}
}
module project_box(x, y,
above=20,
below=10,
@ -65,7 +81,8 @@ module project_box(x, y,
fit_tolerance=0.5,
corner_radius=3,
support_radius=5,
wall_width=3) {
wall_width=3,
mode="case") {
width=board_x + (fit_tolerance * 2);
depth=board_y + (fit_tolerance * 2);
lid_width = width + wall_width; // Extends halfway into each side wall
@ -73,47 +90,61 @@ module project_box(x, y,
lid_height = wall_width; // Replaces most of the top wall
height=board_thickness + above + below + (fit_tolerance * 2) + lid_height;
// container
difference() {
_rounded_box(h=height + (wall_width * 2),
w=width + (wall_width * 2),
d=depth + (wall_width * 2),
r=corner_radius);
translate([wall_width,wall_width,wall_width])
cube([width, depth, height + (wall_width * 2)]);
// lid slot
translate([wall_width / 2, wall_width, height + wall_width + 0.001]) {
lid_base(lid_width, lid_depth, lid_height);
// lid
if (mode == "all") {
translate([wall_width / 2 + fit_tolerance, wall_width + fit_tolerance, height + wall_width + fit_tolerance]) {
lid(lid_width - (fit_tolerance * 2), lid_depth - (fit_tolerance * 2), lid_height - (fit_tolerance * 2));
}
} else if (mode == "lid") {
// Flip the lid and translate it into place for printing
translate([lid_width - (fit_tolerance * 2),0,lid_height - (fit_tolerance * 2)])
rotate([0, 180, 0])
lid(lid_width - (fit_tolerance * 2), lid_depth - (fit_tolerance * 2), lid_height - (fit_tolerance * 2));
}
// supports
translate([wall_width,wall_width,wall_width]) {
translate([0,0,0])
corner_post(h=below, r=support_radius);
translate([width,0,0])
rotate([0,0,90])
corner_post(h=below, r=support_radius);
translate([0,depth,0])
rotate([0,0,270])
corner_post(h=below, r=support_radius);
translate([width,depth,0])
rotate([0,0,180])
corner_post(h=below, r=support_radius);
}
// case
if ((mode == "case") || (mode == "all")) {
difference() {
_rounded_box(h=height + (wall_width * 2),
w=width + (wall_width * 2),
d=depth + (wall_width * 2),
r=corner_radius);
translate([wall_width,wall_width,wall_width])
cube([width, depth, height + (wall_width * 2)]);
// lid slot
translate([wall_width / 2, wall_width, height + wall_width + 0.001]) {
lid_base(lid_width, lid_depth, lid_height);
}
}
// supports
translate([wall_width,wall_width,wall_width]) {
translate([0,0,0])
corner_post(h=below, r=support_radius);
translate([width,0,0])
rotate([0,0,90])
corner_post(h=below, r=support_radius);
translate([0,depth,0])
rotate([0,0,270])
corner_post(h=below, r=support_radius);
translate([width,depth,0])
rotate([0,0,180])
corner_post(h=below, r=support_radius);
}
// locking nubs
translate([wall_width,wall_width,wall_width]) {
nub_size = 1;
nub_width = board_y / 4;
nub_height = below + board_thickness + (nub_size/2) + (fit_tolerance*2);
translate([0,board_y / 2 - nub_width / 2,nub_height])
rotate([270,0,0])
cylinder(h=nub_width, r=nub_size/2);
translate([width,board_y / 2 - nub_width / 2,nub_height])
rotate([270,0,0])
cylinder(h=nub_width, r=nub_size/2);
// locking nubs
translate([wall_width,wall_width,wall_width]) {
nub_size = fit_tolerance * 2;
nub_width = board_y / 4;
nub_height = below + board_thickness + (nub_size/2) + (fit_tolerance*2);
translate([0,board_y / 2 - nub_width / 2,nub_height])
rotate([270,0,0])
cylinder(h=nub_width, r=nub_size/2);
translate([width,board_y / 2 - nub_width / 2,nub_height])
rotate([270,0,0])
cylinder(h=nub_width, r=nub_size/2);
}
}
}
@ -124,4 +155,5 @@ project_box(board_x, board_y,
fit_tolerance=fit_tolerance,
corner_radius=corner_radius,
support_radius=support_radius,
wall_width=wall_width);
wall_width=wall_width,
mode=mode);