Field-Assisted Sintering Technology also known as Spark Plasma Sintering (FAST/SPS) consolidates materials using a high pulsed direct current and low voltage while applying mechanical pressure. The grain size and microstructure of the powder is preserved due to the short process time enabling the study of novel nano-crystalline and ultrafine grain sized materials. However, the geometry of the final product is still mostly limited to disk-shaped objects. Only few publications have yet addressed this problem for the SPS process so far, with only minor improvements in terms of material and design freedom. We will present a novel process route that enables more complex interfaces and designs in the FAST/SPS by selective deposition of two powders layer-by-layer inside a graphite die using a dual-metal powder recoater. In order to co-process materials with different melting points together, the sintering behavior of the two metals must be tuned to one another to achieve full density in both materials after sintering, which can be done by applying the concept of Master Sintering Curves (MSC). In this work, the particle size distribution of commercially available pure copper and pure nickel powders was analyzed by electron microscopy. By applying the MSC concept the apparent activation energy Q for different particle size distributions was determined. Initial efforts to match the MSC and tune the co-processing of metal powders with dissimilar melting points will be presented.