diff --git a/manimlib/mobject/coordinate_systems.py b/manimlib/mobject/coordinate_systems.py
index b1518593..f02706b7 100644
--- a/manimlib/mobject/coordinate_systems.py
+++ b/manimlib/mobject/coordinate_systems.py
@@ -25,8 +25,8 @@ class CoordinateSystem():
     """
     CONFIG = {
         "dimension": 2,
-        "x_range": np.array([-8, 8, 1.0]),
-        "y_range": np.array([-4, 4, 1.0]),
+        "x_range": np.array([-8.0, 8.0, 1.0]),
+        "y_range": np.array([-4.0, 4.0, 1.0]),
         "width": None,
         "height": None,
         "num_sampled_graph_points_per_tick": 5,
@@ -343,11 +343,13 @@ class Axes(VGroup, CoordinateSystem):
 class ThreeDAxes(Axes):
     CONFIG = {
         "dimension": 3,
-        "x_range": np.array([-6, 6, 1]),
-        "y_range": np.array([-5, 5, 1]),
-        "z_range": np.array([-4, 4, 1]),
+        "x_range": np.array([-6.0, 6.0, 1.0]),
+        "y_range": np.array([-5.0, 5.0, 1.0]),
+        "z_range": np.array([-4.0, 4.0, 1.0]),
         "z_axis_config": {},
         "z_normal": DOWN,
+        "height": None,
+        "width": None,
         "depth": None,
         "num_axis_pieces": 20,
         "gloss": 0.5,