LoRaWAN-Signal-Mapping/iot/Housing.scad

////////////////
/// Settings ///
////////////////

// The thickness of the walls
wall_thickness = 2;

// The dimensions of the box on the inside
box_inside = [
	110, // X
	135, // Y
	110 // Z
];

screw_diameter = 3;
screw_length = 6.3;

bb_mount_height = 5;

battery = [19, 60, 70];


// -------------------------------------------

box_outside = [
	box_inside[0] + (wall_thickness * 2),
	box_inside[1] + (wall_thickness * 2),
	box_inside[2] + (wall_thickness - 0.1)
];

// -------------------------------------------

// Misc. Utility functions
// -------------------------------------------

module screw_port() {
	difference() {
		color("purple") cylinder(
			h = screw_length + wall_thickness,
			d = screw_diameter + (wall_thickness * 2),
			$fn = 25
		);
		
		
		// TODO: Measure screw size, as these holes might be too big. Note that they apparently end up slightly smaller anyway, due to openscad's rendering apparent - but this probably won't be enough.
		color("mediumpurple") translate([0, 0, wall_thickness + 0.1]) cylinder(
			h = screw_length,
			d = screw_diameter,
			$fn = 25
		);
	};
}

// Corner generation
corner_piece_size = screw_diameter + (wall_thickness * 2);
module corner_piece() {
	color("red") difference() {
		cube([
			corner_piece_size,
			corner_piece_size,
			box_inside[2]
		]);
		translate([
			corner_piece_size / 2,
			corner_piece_size / 2,
			box_inside[2] - screw_length + 0.1
		]) cylinder(h = screw_length, d = screw_diameter, $fn = 25);
	}
};

// Box
// -------------------------------------------

union() {
difference() {
    cube(box_outside);
	
	translate([wall_thickness, wall_thickness, wall_thickness]) {
		cube(box_inside);
	}
}

// Mounts
// -------------------------------------------

// Arduino
// ----------------------
translate([53.4+8, 60, wall_thickness]) rotate([0, 0, 90]) {
	screw_port(); // Top left
	translate([50.8, 15.2]) screw_port();
	translate([50.8, 43.1]) screw_port();
	translate([-1.3, 48.2]) screw_port();
	
	% translate([-15.3, -2, screw_length + wall_thickness]) square([68.6, 53.4]);
}

// Breadboard Mounting
// ----------------------
translate([70, 10, wall_thickness - 0.1]) difference() {
	union() {
		translate([wall_thickness*2, 0, 0]) cube([
			35 - (wall_thickness*2),
			46 + wall_thickness*2,
			bb_mount_height
		]);
		translate([0, wall_thickness*2, 0]) cube([
			35 + wall_thickness*2,
			46 - (wall_thickness*2),
			bb_mount_height
		]);
	}
	
	translate([wall_thickness, wall_thickness, -1]) cube([
		35,
		46,
		bb_mount_height + 2
	]);
}

// Battery box
// ----------------------
% translate([
	box_inside[0] - battery[0] + wall_thickness,
	box_inside[1] - battery[1] - corner_piece_size,
	0
]) cube(battery);

// Corners
// -------------------------------------------

{
	translate([
		wall_thickness,
		wall_thickness,
		wall_thickness - 0.1
	]) corner_piece();
	translate([
		wall_thickness + box_inside[0] - corner_piece_size,
		wall_thickness,
		wall_thickness - 0.1
	]) corner_piece();
	translate([
		wall_thickness,
		wall_thickness + box_inside[1] - corner_piece_size,
		wall_thickness - 0.1
	]) corner_piece();
	translate([
		wall_thickness + box_inside[0] - corner_piece_size,
		wall_thickness + box_inside[1] - corner_piece_size,
		wall_thickness - 0.1
	]) corner_piece();
}

}