From 36928b70c94190b739af1dbd39b2680b21f949d0 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Mon, 30 May 2016 23:23:06 +0000
Subject: work around the lack of air guides

intersection with empty airguides part isn't what one may expect it to be.
---
diff --git a/fanduct.scad b/fanduct.scad
index f4bb705..563920c 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -226,7 +226,10 @@ module fanduct(type=type) {
   parts("out");
  }
  intersection() {
-  output("airguides");
+  union() {
+   output("airguides");
+   sphere(d=epsilon);
+  }
   union() {
    duct("in"); output("in"); intake("in");
   }
--
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