OpenSCAD electronic project boxes

OpenSCAD snippets to design project boxes.

Example of usage:
round_box(inside_box = [20, 20, 10], wall_thickness = 1, curve_radius = 3, mounting_screw = 4, mounting_screw_gap = 3);

translate([25, 0, 0]) {
round_box(outside_box = [20, 20, 10], wall_thickness = 1, curve_radius = 3, mounting_screw = 4, mounting_screw_gap = 3);
}

translate([0, 25, 0]) {
box(inside_box = [20, 20, 10], wall_thickness = 1, mounting_screw = 4, mounting_screw_gap = 3);
}

translate([25, 25, 0]) {
box(outside_box = [20, 20, 10], wall_thickness = 1, mounting_screw = 4, mounting_screw_gap = 3);
}

translate([50, 25, 0]) {
box_cover(outside_box = [20, 20, 10], wall_thickness = 1, mounting_screw = 4,
mounting_screw_gap = 3);
}

translate([-25, 25, 0]) {
box_cover(inside_box = [20, 20, 10], wall_thickness = 1, mounting_screw = 4,
mounting_screw_gap = 3);
}

translate([50, 0, 0]) {
round_box_cover(outside_box = [20, 20, 10], wall_thickness = 1, curve_radius = 3, mo