Three-dimensional shaped object manufacturing device

A three-dimensional shaped object manufacturing device, comprising:

• a shaping table configured to move a shaping surface of a three-dimensional shaped object in a shaping surface moving direction intersecting the shaping surface;
• a unit configured to reciprocate with respect to the shaping table and including a first supply portion and a second supply portion configured to supply powder, a first layer forming portion and a second layer forming portion configured to form a powder layer on the shaping table using the powder, and at least one head configured to discharge a liquid containing a binder to a shaping region of the three-dimensional shaped object on the powder layer;
• and
• a control unit configured to control the unit and the shaping table, wherein
• the unit includes the first supply portion, the first layer forming portion, the head, the second layer forming portion, and the second supply portion in an order from a head side in a forward direction in a reciprocating direction of the unit, and
• the control unit performs control to,
• when moving the unit in the forward direction when shaping the three-dimensional shaped object, supply the powder from the first supply portion, form the powder layer on the shaping table using the powder by the first layer forming portion, discharge the liquid to the shaping region from the head, and move the shaping table in a direction separating from the unit after discharging the liquid to the shaping region is ended and before the second layer forming portion faces the shaping region, and
• when moving the unit in a backward direction in the reciprocating direction when shaping the three-dimensional shaped object, supply the powder from the second supply portion, form the powder layer on the shaping table using the powder by the second layer forming portion, discharge the liquid to the shaping region from the head, and move the shaping table in the direction separating from the unit after discharging the liquid to the shaping region is ended and before the first layer forming portion faces the shaping region.