From 9332c2179166e93ab2f2fca0a1fa9099f845699c Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Fri, 6 Mar 2015 10:36:04 +0100
Subject: [PATCH] Bugfix: double wipe was not prevented, causing potential
 collision between objects in sequential printing. #2691

---
 lib/Slic3r/GCode.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/Slic3r/GCode.pm b/lib/Slic3r/GCode.pm
index 307beb1e02..27f5dbe537 100644
--- a/lib/Slic3r/GCode.pm
+++ b/lib/Slic3r/GCode.pm
@@ -589,6 +589,9 @@ sub wipe {
             $retracted += $dE;
         }
         $gcodegen->writer->extruder->set_retracted($gcodegen->writer->extruder->retracted + $retracted);
+        
+        # prevent wiping again on same path
+        $self->path(undef);
     }
     
     return $gcode;