1diff -urN Cura-15.04.old/Cura/util/sliceEngine.py Cura-15.04/Cura/util/sliceEngine.py
2--- Cura-15.04.old/Cura/util/sliceEngine.py 2016-05-07 20:34:17.305020334 +0200
3+++ Cura-15.04/Cura/util/sliceEngine.py 2016-05-07 20:40:02.993286467 +0200
4@@ -343,7 +343,7 @@
5 objMax[1] = max(oMax[1], objMax[1])
6 if objMin is None:
7 return
8- pos += (objMin + objMax) / 2.0 * 1000
9+ pos = numpy.add( pos, (objMin + objMax) / 2.0 * 1000, out=pos, casting='unsafe')
10 commandList += ['-s', 'posx=%d' % int(pos[0]), '-s', 'posy=%d' % int(pos[1])]
11
12 vertexTotal = [0] * 4