Here is a set of coordinate axes for 3-dimensional space. The ends of the axes have been labeled with x, y, and z. They have been made so that many of the models (Wedges 1 & 2, Volumes by French Fries) will fit into them.
This model was designed and printed by my WLU summer research student Ryan McDonnell ('17).
This object was made on a MakerBot2X. We used the following settings:
0.20mm layer height
10% infill (hexagonal pattern)