diff --git a/cura/BuildVolume.py b/cura/BuildVolume.py
index e9b90e3a61..143b2fefbb 100644
--- a/cura/BuildVolume.py
+++ b/cura/BuildVolume.py
@@ -1,11 +1,9 @@
 # Copyright (c) 2015 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
-from UM.View.Renderer import Renderer
 from UM.Scene.SceneNode import SceneNode
 from UM.Application import Application
 from UM.Resources import Resources
-from UM.Mesh.MeshData import MeshData
 from UM.Mesh.MeshBuilder import MeshBuilder
 from UM.Math.Vector import Vector
 from UM.Math.Color import Color
diff --git a/cura/ConvexHullNode.py b/cura/ConvexHullNode.py
index 7f0f87ade5..b99e80fcff 100644
--- a/cura/ConvexHullNode.py
+++ b/cura/ConvexHullNode.py
@@ -9,8 +9,6 @@ from UM.Mesh.MeshBuilder import MeshBuilder #To create a mesh to display the con
 
 from UM.View.GL.OpenGL import OpenGL
 
-import numpy
-
 class ConvexHullNode(SceneNode):
     def __init__(self, node, hull, parent = None):
         super().__init__(parent)