Fixed #148

diff --git a/Cura/util/util3d.py b/Cura/util/util3d.py
index 2592785b8f0e4e13acd4155403043fb9d60cbaf8..217814bec83a55ebd730e181ed49da9dffcf847c 100644 (file)
--- a/Cura/util/util3d.py
+++ b/Cura/util/util3d.py
@@ -33,14 +33,14 @@ class Vector3(object):
 
        def __iadd__(self, v):
                self.x += v.x
-               self.y += v.x
-               self.z += v.x
+               self.y += v.y
+               self.z += v.z
                return self
 
        def __isub__(self, v):
                self.x += v.x
-               self.y += v.x
-               self.z += v.x
+               self.y += v.y
+               self.z += v.z
                return self
 
        def __imul__(self, v):