DLP 3D Driving and controlling method for 3D printer of DLP type

摘要

The present invention relates to a driving control method of a DLP type 3D printer, by which an output can be easily separated from the surface of a resin bath when a molding is completed by regularly repeating wave operations of moving a build plate for supporting the output up and down to a predetermined height when molding the output. The present invention includes: a motor driving unit (210) which drives a drive motor (150) by forward and reverse rotations; a projector driving unit (220) which drives a DLP projector (120); a control unit (230) which performs ascending or descending controls of a build plate (130) by controlling the motor driving unit (210) and controls photocurable resin (111) to be cured by controlling the projector driving unit (220) and irradiating light from the DLP projector (120); and a setting unit (240) which sets the thickness (a) of a reference layer (P1) to form an output (P). The control unit (230) sequentially raises the build plate (130) in order to sequentially stack and cure the photocurable resin (111) to the reference layer (P1) corresponding to a set thickness (a), and repeatedly controls settings to a set position by descending after more ascending the build plate by a predetermined height (b: wave setting value) than a position corresponding to the thickness (a) of the set reference layer during the ascending operation.