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Publications (13)
Due to the layer stacking inherent in traditional three-axis material extrusion (ME) additive manufacturing processes, a part's mechanical strength is limited in the print direction due to weaker interlayer bond strength. Often, this requires compromise in part design through either adding material in critical areas of the part, reducing end-use lo...
Purpose
Material extrusion (ME) suffers from anisotropic mechanical properties that stem from the three degree of freedom (DoF) toolpaths used for deposition. The formation of each layer is restricted to the XY-plane, which produces poorly bonded layer interfaces along the build direction. Multi-axis ME affords the opportunity to change the layeri...
Purpose
Material extrusion (MEX) additive manufacturing often requires support structures to enable manufacture of steep overhanging features. Multi-axis deposition (often enabled by a robotic arm) offers novel toolpath planning methods that can significantly reduce or eliminate supports. However, there is currently a lack of established design gui...
This paper presents the realization of a robotic workcell capable of autonomous, flexible, fabrication of complete, full-scale, functional mechatronic systems. Using a 6-DOF robotic arm with a hybrid additive manufacturing (AM)/pick-and-place (PnP) end-effector, the workcell can rapidly print enclosures, insert and wire functional electronics, and...
The COVID-19 pandemic has disrupted the supply chain for personal protective equipment (PPE) for medical professionals, including N95-type respiratory protective masks. To address this shortage, many have looked to the agility and accessibility of additive manufacturing (AM) systems to provide a democratized, decentralized solution to producing res...
The innovation in the new musical interfaces is largely driven by the ground up endeavors that introduce a level of redundancy. Inspired by the successes of iPhone and other industry innovations that were driven by iteration, consolidation, and scalability, we present a new interface for musical expression and discuss key elements of its implementa...
The layer-by-layer deposition process used in material extrusion (ME) additive manufacturing results in inter- and intra-layer bonds that reduce mechanical performance. Multi-axis ME techniques have shown potential for mitigating this issue by enabling tailored deposition directions based on loading conditions in three dimensions (3D). Planning dep...
Source Form is a stand-alone device capable of collecting crowdsourced images of a user-defined object, stitching together available visual data (e.g., photos tagged with search term) through photogrammetry, creating watertight models from the resulting point cloud and 3D printing a physical form. This device works completely independent of subject...
The thermal characteristics of the material extrusion additive manufacturing (AM) process produce weak bonds between layers and adjacent depositions, resulting in an overall anisotropic mechanical performance. Design for AM guidelines advise printing load-bearing parts such that load is applied strictly along the deposition paths, but this can be d...
Laptop orchestras create music, although digitally produced, in a collaborative live performance not unlike a traditional orchestra. The recent increase in interest and investment in this style of music creation has paved the way for novel methods for musicians to create and interact with music. To this end, a number of nontraditional instruments h...
The flexibility offered by additive manufacturing (AM) technologies to fabricate complex geometries poses several challenges to non-destructive evaluation (NDE) and quality control (QC) techniques. Existing NDE and QC techniques are not optimized for AM processes, materials, or parts. Such lack of reliable means to verify and qualify AM parts is a...