From c490739395d4178c1a752997739066c0cfedc21f Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Tue, 2 Dec 2014 12:43:06 +0100
Subject: [PATCH] diffuser.scad: LZZ-186 diffuser as published on thingiverse

---
 diffuser.scad | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 diffuser.scad

diff --git a/diffuser.scad b/diffuser.scad
new file mode 100644
index 0000000..d7a4cab
--- /dev/null
+++ b/diffuser.scad
@@ -0,0 +1,96 @@
+inner_d = 38;
+outer_d = 43.5;
+wall_thickness = 1.5;
+diaphragm_thickness = 0.8;
+cable_thickness = 4;
+
+base_h = 4;
+shader_h = 6;
+holder_h = 16;
+
+epsilon = 0.01;
+
+module diaphragm() {
+	cylinder(h=diaphragm_thickness, r = outer_d/2 + wall_thickness-epsilon);
+};
+
+module shader() {
+	difference() {
+		cylinder(r=outer_d/2 + wall_thickness, h = shader_h);
+		translate([0, 0, -epsilon/2])
+			cylinder(r1 = outer_d/2+wall_thickness/2, r2=outer_d/2+wall_thickness/2-(2/5)*(outer_d-inner_d),
+				h = shader_h + epsilon);
+	};
+};
+
+module base() {
+        difference() {
+                cylinder(r =  outer_d/2 + wall_thickness, h = base_h + epsilon);
+                translate([0, 0, - epsilon/2])
+                        cylinder(r = inner_d/2, h = base_h + 2*epsilon);
+        };
+};
+
+module outer_clip() {
+	difference() {
+		cylinder(r = outer_d/2 + wall_thickness, h = holder_h-base_h);
+		translate([0, 0, -epsilon/2])
+			cylinder(r = outer_d/2, h = holder_h - base_h + epsilon);
+	};
+
+	intersection() {
+		difference() {
+			cylinder(r = outer_d/2 + wall_thickness - epsilon, h = holder_h-base_h-epsilon);
+			translate([-50, -(inner_d-3)/2, -epsilon])
+				cube([100, inner_d-3, 100]);
+		};
+		rotate_extrude()
+			translate([outer_d/2+1.5, holder_h-base_h-1, 0])
+				circle(r = 2);
+	};
+};
+
+module belt_clip() {
+	intersection() { // belt clip arc
+		difference() {
+			cylinder(r = outer_d/2 + 2*wall_thickness + cable_thickness, h = shader_h + holder_h);
+			translate([0, 0, -epsilon/2])
+				cylinder(r = outer_d/2 + wall_thickness + cable_thickness, h = shader_h + holder_h + epsilon);
+		};
+		translate([0, -6, 0])
+		cube([outer_d + 4*wall_thickness + 2*cable_thickness + epsilon, 12, shader_h + holder_h]);
+	};
+	difference() { // connect the clip to the body
+		rotate([0, 0, -10])
+			translate([outer_d/2-3, 0, 0])
+			cylinder(r = cable_thickness + 2*wall_thickness + 3, h = shader_h + holder_h);
+		translate([0, 0, -epsilon/2])
+			cylinder(r = outer_d/2 + wall_thickness - epsilon, h = shader_h + holder_h + epsilon);
+		translate([0, -4, -epsilon/2])
+		cube([outer_d/2 + 2*wall_thickness + cable_thickness + epsilon, 20, holder_h + shader_h + epsilon]);
+
+	};
+	intersection() { // hold the cable in position
+		rotate([0, 0, 10])
+		translate([outer_d/2+2*wall_thickness + cable_thickness, 0, 0])
+		cylinder(r = 2.75, h = shader_h + holder_h);
+		translate([0, 0, -epsilon/2])
+			cylinder(r = outer_d/2 + 2*wall_thickness + cable_thickness, h = shader_h + holder_h + epsilon);
+	};
+};
+
+module main() {
+	shader();
+	translate([0, 0, shader_h])
+		color([1, 0.5, 0.5, 0.2]) diaphragm();
+
+	translate([0, 0, shader_h-epsilon])
+		base();
+
+	translate([0, 0, shader_h+base_h-2*epsilon])
+		outer_clip();
+
+	belt_clip();
+};
+
+main($fn = 128);
-- 
2.43.5