1 files changed, 12 insertions, 10 deletions

diff --git a/fanduct.scad b/fanduct.scad
index 541a037..b8994d4 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -92,15 +92,12 @@ module fanduct(type=type) {
      cylinder(r=fanduct_ir+fanduct_shell+1,h=fanduct_elevation+.1+2);
     }
    }else if(what=="out") {
-    difference() {
-     rotate_extrude($fn=smooth_f)
-     polygon([
-      [0,-fanduct_elevation],
-      [fanduct_ir+fanduct_shell+1,fanduct_h/2],
-      [fanduct_ir+fanduct_w/2+fanduct_shell+1,fanduct_shell],
-      [0,-fanduct_elevation-.1]]);
-     circus("airguides");
-    }
+    rotate_extrude($fn=smooth_f)
+    polygon([
+     [0,-fanduct_elevation],
+     [fanduct_ir+fanduct_shell+1,fanduct_h/2],
+     [fanduct_ir+fanduct_w/2+fanduct_shell+1,fanduct_shell],
+     [0,-fanduct_elevation-.1]]);
    }else if(what=="airguides") {
     inr = fanduct_ir+fanduct_shell; our = inr+fanduct_w;
     union() {
@@ -227,7 +224,12 @@ module fanduct(type=type) {
   parts("in");
   parts("out");
  }
- 
+ intersection() {
+  output("airguides");
+  union() {
+   duct("in"); output("in"); intake("in");
+  }
+ }
 }
 
 view="full"; // hcut|vcut|*