A method is provided for manufacturing a three-dimensional printed (3D-printed) object. The method includes: depositing first threads separated by gaps in a first run of a first layer; depositing second threads in a second run of the first layer, and the second threads fill the gaps between the first threads and create a plurality of first-layer vertical interfaces along a length of each of the first threads; depositing third threads separated by gaps in a first run of a second layer; and depositing fourth threads in a second run of the second layer, and the fourth threads fill the gaps between the third threads and create a plurality of second-layer vertical interfaces along a length of each of the third threads. The second layer is deposited on top of the first layer so that one or more of the first-layer vertical interfaces do not overlap with the second-layer vertical interfaces.