add storage_box

examples/storage_box.scad

@@ -0,0 +1,114 @@
+use <bezier_curve.scad>
+use <sweep.scad>
+use <matrix/m_transpose.scad>
+use <util/sum.scad>
+
+size = [100, 50, 120];
+panel_thickness = 1.5;
+draw_thickness = 1.25;
+drawer_numbers = 3;
+spacing = 0.6;
+
+storage_box(size, panel_thickness, draw_thickness, drawer_numbers, spacing);
+
+module storage_box(size, panel_thickness, draw_thickness, drawer_numbers, spacing) {
+    p0 = [size.x * 0.5, size.y * 0.5, 0];
+    p1 = [size.x * 0.75, size.y * 0.5, size.z * 0.25];
+    p2 = [size.x * 0.5, size.y * 0.5, size.z * 0.5];
+    p3 = [size.x * 0.25, size.y * 0.5, size.z * 0.75];
+    p4 = [size.x * 0.5, size.y * 0.5, size.z];
+
+    control_points = [p0, p1, p2, p3, p4];
+
+    t_step = 1 / (drawer_numbers * 10 + 2);
+
+    path1 = bezier_curve(t_step, control_points);
+    path2 = bezier_curve(t_step, [for(p = control_points) p - [size.x, 0, 0]]);
+    path3 = bezier_curve(t_step, [for(p = control_points) p - [size.x, size.y, 0]]);
+    path4 = bezier_curve(t_step, [for(p = control_points) p - [0, size.y, 0]]);
+
+    path_leng = len(path1);
+
+    step = floor((path_leng - 2) / drawer_numbers);
+
+    drawer_profiles = [
+        for(i = [0:drawer_numbers - 1])
+        let(start = i * step + 1)
+            concat(
+            [
+                for(j = [start:start+step]) 
+                let(p = path1[j])
+                [p.x, p.z]
+            ],
+            [
+                for(j = start+step; j >= start; j = j - 1) 
+                let(p = path2[j])
+                [p.x, p.z]
+            ]
+        )
+    ];
+
+    drawer_profiles2 = [
+        for(i = [0:drawer_numbers - 1])
+        let(start = i * step + 1)
+            concat(
+            [
+                for(j = [start:start+step + 1]) 
+                let(p = path1[j])
+                [p.x, p.z]
+            ],
+            [
+                for(j = start+step + 1; j >= start; j = j - 1) 
+                let(p = path2[j])
+                [p.x, p.z]
+            ]
+        )
+    ];
+
+    color("white")
+    difference() {
+        sweep(m_transpose([path4, path3, path2, path1]));
+        
+        translate([0, size.y * 0.5 - panel_thickness, 0])
+        rotate([90, 0, 0])
+        linear_extrude(size.y)
+        for(profile = drawer_profiles) {
+            offset(-panel_thickness)
+                polygon(profile);
+        }
+    }
+
+    translate([0, size.y * 0.5 - panel_thickness - spacing * 0.5, 0])
+    rotate([90, 0, 0])
+    for(i = [0:drawer_numbers - 1]) {
+        translate([0, 0, size.y * 0.9 - size.y / drawer_numbers * i]) {
+            color(rands(0, 1, 3))
+            difference() {
+                linear_extrude(size.y - panel_thickness - spacing * 0.5)
+                offset(-panel_thickness - spacing * 0.5)
+                    polygon(drawer_profiles[i]);
+
+                translate([0, 0, draw_thickness])
+                linear_extrude(size.y - panel_thickness - draw_thickness * 2)
+                offset(-panel_thickness - spacing * 0.5 - draw_thickness)
+                    polygon(drawer_profiles2[i]);
+            }
+            
+            color(rands(0, 1, 3))
+            translate([0, 0, size.y - draw_thickness * 2])
+            translate(sum(drawer_profiles[i]) / len(drawer_profiles[i]))
+            difference() {
+                linear_extrude(draw_thickness * 4)
+                offset(1)
+                    text("~", 
+                        font = "Arial Black", 
+                        size = size.z / drawer_numbers / 2,
+                        valign = "center", 
+                        halign = "center"
+                    );
+                linear_extrude(draw_thickness * 3)
+                    square([size.z / 10, size.z / 5], center = true);
+            }
+        }
+    }
+}