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Damper/Damper.scad

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+// the height of the damper
+HEIGHT = 40;
+
+// the width of the walls between the pockets
+// thinner walls make a softer damper
+THICKNESS = 1;
+
+// the width of the pocket, relative to the thickness
+// bigger ratio make a softer damper
+POCKET_WIDTH_RATIO = 5;
+
+// amount of pockets in the outer wall
+POCKETS = 7;
+
+// amount of double-pockets inside the damper
+INNER_LAYERS = 2;
+
+// calculate some internals
+LENGTH = POCKETS * (POCKET_WIDTH_RATIO + THICKNESS);
+
+module wall(thickness, y_offsett) {
+    translate([0, y_offsett, 0]) {
+        cube(size=[LENGTH, thickness, HEIGHT]);
+    }
+}
+
+module bridges_1(thickness, y_offsett) {
+    translate([0, y_offsett, 0]) {
+        for (p = [0:1:POCKETS-1]) {
+            x1 = p * (POCKET_WIDTH_RATIO * THICKNESS + THICKNESS);
+            translate([x1, 0, 0]) cube(size=[THICKNESS/2, thickness, HEIGHT]);
+            x2 = (p+1) * (POCKET_WIDTH_RATIO * THICKNESS + THICKNESS) - THICKNESS/2;
+            translate([x2, 0, 0]) cube(size=[THICKNESS/2, thickness, HEIGHT]);
+        };
+    }
+}
+
+module bridges_2(thickness, y_offsett) {
+    translate([0, y_offsett, 0]) {
+
+        // first bridge
+        cube(size=[THICKNESS/2, thickness, HEIGHT]);
+        
+        for (p = [0:1:POCKETS-1]) {
+            x = p * (POCKET_WIDTH_RATIO * THICKNESS + THICKNESS) + POCKET_WIDTH_RATIO * THICKNESS / 2;
+            translate([x, 0, 0]) {
+                cube(size=[THICKNESS, thickness, HEIGHT]);
+            }
+        };
+
+        // last bridge
+        x = LENGTH - THICKNESS/2;
+        translate([x, 0, 0]) {
+            cube(size=[THICKNESS/2, thickness, HEIGHT]);
+        }
+        
+    }
+}
+
+
+// outer shell
+wall(THICKNESS, 0);
+bridges_1(THICKNESS/2, 1.0 * THICKNESS);
+
+// inner layers
+for (i = [1:1:INNER_LAYERS]) {
+    y_ofst = (1.5 + (i-1)*4) * THICKNESS;
+    wall(THICKNESS, y_ofst);
+    bridges_2(THICKNESS, y_ofst + THICKNESS);
+    wall(THICKNESS, y_ofst + 2*THICKNESS);
+    bridges_1(THICKNESS, y_ofst + 3*THICKNESS);
+}
+y_ofst_las_inner = (1.5 + INNER_LAYERS*4) * THICKNESS;
+wall(THICKNESS, y_ofst_las_inner);
+bridges_2(THICKNESS, y_ofst_las_inner + THICKNESS);
+
+// outer shell
+y_ofst_shell = y_ofst_las_inner + 2*THICKNESS;
+wall(THICKNESS, y_ofst_shell);
+bridges_1(THICKNESS/2, y_ofst_shell + THICKNESS);
+wall(THICKNESS, y_ofst_shell + 1.5*THICKNESS);