Fix the wrong layer for fan fully on.

diff --git a/Cura/util/sliceEngine.py b/Cura/util/sliceEngine.py
index 75265d59f3baee85b46c8218ef11b97781a25828..5fb60e3b6c55f79529a16ac5975a70b09d798cdc 100644 (file)
--- a/Cura/util/sliceEngine.py
+++ b/Cura/util/sliceEngine.py
@@ -289,7 +289,7 @@ class Slicer(object):
                        'fixHorrible': 0,
                }
                fanFullHeight = int(profile.getProfileSettingFloat('fan_full_height') * 1000)
-               settings['fanFullOnLayerNr'] = (fanFullHeight - settings['initialLayerThickness']) / settings['layerThickness'] + 1
+               settings['fanFullOnLayerNr'] = (fanFullHeight - settings['initialLayerThickness'] - 1) / settings['layerThickness'] + 1
                if settings['fanFullOnLayerNr'] < 0:
                        settings['fanFullOnLayerNr'] = 0