Three-dimensional fabrication apparatus, controller, and control method

A controller to control an operation of a fabrication apparatus to fabricate a three-dimensional object, the controller comprising:

• one or more processors configured to execute computer-readable instructions, stored in a memory, such that the one or more processors are configured to
• predict a displacement amount of a shape of a fabrication layer after a time has elapsed since fabrication of the fabrication layer;
• and
• correct fabrication data of a next fabrication layer to be fabricated next to the fabrication layer based on a planar shape of the fabrication layer measured and the displacement amount predicted.

A method to fabricate a three-dimensional object, comprising:

• measuring a planar shape of a fabrication layer;
• predicting a displacement amount of a shape of the fabrication layer after a time has elapsed since fabrication of the fabrication layer;
• correcting fabrication data based on the planar shape of the fabrication layer measured by the measuring and the displacement amount predicted by the predicting;
• and
• fabricating a next fabrication layer based on the fabrication data corrected.