From 255f4886db8797a9b1c8079f6a166e92e4eb1f4c Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sun, 29 May 2016 21:11:36 +0000
Subject: jets going deeper inside

that may be a bit more accurate, but damn freaking slow
---
diff --git a/fanduct.scad b/fanduct.scad
index 72143e2..a843023 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -123,20 +123,26 @@ module fanduct(type=type) {
 
   module jets(what) {
    od = fanduct_h/2+fanduct_shell;
-   difference() {
+   md = fanduct_ir+fanduct_shell+fanduct_w/2;
+   jww = 2*md*sin(jet_angle/2);
+   render(convexity=8) difference() {
     for(a=[0:120:359]) rotate([0,0,a]) {
      if(what=="in") {
       hull() {
-       translate([fanduct_ir+od/2,0,od/2])
-       rotate([90,0,0])
-       cylinder(d=od,h=2*(fanduct_ir+fanduct_shell+fanduct_w/2)*sin(jet_angle/2)-3,center=true,$fn=36);
+       render(convexity=4) intersection() {
+	translate([md-fanduct_shell-fanduct_w/2,-jww/2,0])
+	cube(size=[fanduct_shell+fanduct_w/2,jww,od]);
+	duct(what=what);
+       }
        translate([0,0,-fanduct_elevation]) sphere(r=.5);
       }
      }else if(what=="out") {
       hull() {
-       translate([fanduct_ir+od/2,0,od/2])
-       rotate([90,0,0])
-       cylinder(d=od-2*fanduct_shell,h=2*(fanduct_ir+fanduct_shell+fanduct_w/2)*sin(jet_angle/2)-3-2*fanduct_shell,center=true);
+       render(convexity=4) intersection() {
+	translate([md-fanduct_w/2-fanduct_shell,-jww/2+fanduct_shell,fanduct_shell])
+	cube(size=[fanduct_w/2+fanduct_shell,jww-2*fanduct_shell,od-2*fanduct_shell]);
+	duct(what=what);
+       }
        translate([0,0,-fanduct_elevation]) sphere(r=.2);
       }
      }
--
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