Begin designing housing

iot/Housing.scad

@@ -0,0 +1,101 @@
+////////////////
+/// Settings ///
+////////////////
+
+// The thickness of the walls
+wall_thickness = 2;
+
+// The dimensions of the box on the inside
+box_inside = [
+	110, // X
+	130, // Y
+	110 // Z
+];
+
+screw_diameter = 3;
+screw_length = 6.3;
+
+
+// -------------------------------------------
+
+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
+		);
+		
+		color("mediumpurple") translate([0, 0, wall_thickness + 0.1]) cylinder(
+			h = screw_length,
+			d = screw_diameter,
+			$fn = 25
+		);
+	};
+}
+
+// Box
+// -------------------------------------------
+
+difference() {
+    color("green") cube(box_outside);
+	
+	translate([wall_thickness, wall_thickness, wall_thickness]) {
+		cube(box_inside);
+	}
+};
+
+// Screw holes
+// -------------------------------------------
+
+translate([0, 0, 200]) screw_port();
+
+// Corners
+// -------------------------------------------
+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);
+	}
+}
+
+translate([
+	wall_thickness,
+	wall_thickness,
+	wall_thickness
+]) corner_piece();
+translate([
+	wall_thickness + box_inside[0] - corner_piece_size,
+	wall_thickness,
+	wall_thickness
+]) corner_piece();
+translate([
+	wall_thickness,
+	wall_thickness + box_inside[1] - corner_piece_size,
+	wall_thickness
+]) corner_piece();
+translate([
+	wall_thickness + box_inside[0] - corner_piece_size,
+	wall_thickness + box_inside[1] - corner_piece_size,
+	wall_thickness
+]) corner_piece();