From 0dd3ab066298efc527865a1ca6322c518859b08a Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Wed, 18 Sep 2013 20:05:15 +0200
Subject: [PATCH] Don't block while cooling extruder

---
 lib/Slic3r/GCode.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Slic3r/GCode.pm b/lib/Slic3r/GCode.pm
index 4b0245ee5..0b57b4258 100644
--- a/lib/Slic3r/GCode.pm
+++ b/lib/Slic3r/GCode.pm
@@ -672,7 +672,8 @@ sub set_extruder {
         my $temp = defined $self->layer && $self->layer->id == 0
             ? $self->extruder->first_layer_temperature
             : $self->extruder->temperature;
-        $gcode .= $self->set_temperature($temp + $self->config->standby_temperature_delta, 1);
+        # we assume that heating is always slower than cooling, so no need to block
+        $gcode .= $self->set_temperature($temp + $self->config->standby_temperature_delta, 0);
     }
     
     # set the new extruder