import matplotlib.pyplot as plt

positions = ['lower', 'upper', 'default', 'both', 'none']
fig, axs = plt.subplots(2, 3, figsize=(12, 8),
                        subplot_kw={'projection': '3d'})
for ax, pos in zip(axs.flatten(), positions):
    for axis in ax.xaxis, ax.yaxis, ax.zaxis:
        axis.set_label_position(pos)
        axis.set_ticks_position(pos)
    title = f'position="{pos}"'
    ax.set(xlabel='x', ylabel='y', zlabel='z', title=title)
axs[1, 2].axis('off')