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A concept for multi-material solid freeform fabrication is proposed to enable the fabrication of heterogeneous components. This concept features nozzles designed for depositing thin layers of multiple patterned materials followed by selective laser sintering for consolidation to desired densities. Although prior work on the design of small-scale nozzles for powder delivery is lacking, our design is guided by background theory for particle flow through hoppers. Experimental guidelines for thedoi:10.26153/tsw/5508 fatcat:2tilfpyqxzevpdirgctpow7urq