SENSING DEVICE FOR THREE-DIMENSIONAL PRINTING OBJECT

摘要

A sensing device of a three dimensional object being printed is provided. The sensing device includes a roller (210), a ring shape equipment (220), a sensor (230), and a processor (250). The roller is utilized to perform planarization of the 3D printing object (260). The ring shape equipment has the same axial as the roller and rotates with the roller. The sensor is utilized to detect rotational speed of the ring shape equipment. The processor determines whether the roller is in contact with the 3D printing object according to the rotational speed of the ring shape equipment. Thereby, contact between the roller and the 3D printing object may be determined without disposed sensor on the roller.