From c6fa47e584a38998809916d6d5ff694afe21f75a Mon Sep 17 00:00:00 2001
From: fieldOfView <aldo@fieldofview.com>
Date: Fri, 11 Jan 2019 17:52:28 +0100
Subject: [PATCH] Mark PrinterOutputDevice without printer type as invalid

Since self._printer_type was defined as an empty string and the setter only accepts strings, it could never be None
---
 cura/PrinterOutput/ConfigurationModel.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cura/PrinterOutput/ConfigurationModel.py b/cura/PrinterOutput/ConfigurationModel.py
index 89e609c913..f9d0c7e36b 100644
--- a/cura/PrinterOutput/ConfigurationModel.py
+++ b/cura/PrinterOutput/ConfigurationModel.py
@@ -54,7 +54,7 @@ class ConfigurationModel(QObject):
         for configuration in self._extruder_configurations:
             if configuration is None:
                 return False
-        return self._printer_type is not None
+        return self._printer_type != ""
 
     def __str__(self):
         message_chunks = []