Abstract: According to one embodiment, an additive manufacturing device includes a frame; a first gantry; and a first carriage. The first gantry has a length that extends along a first horizontal dimension of the frame. The first gantry is configured to move back and forth along a second horizontal dimension of the frame. The first carriage is configured to move back and forth along the length of the first gantry. The device further includes a second gantry, and a second carriage. The second gantry has a length that extends along the first horizontal dimension. The second gantry is configured to move back and forth along the second horizontal dimension. The second carriage is configured to move back and forth along the length of the second gantry. The device also includes a flowable material deliverer coupled to the first carriage; and a flowable material depositer coupled to the second carriage.