Robert MacCurdy
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View article: Implicit Modeling for 3D-printed Multi-material Computational Object Design via Python
Implicit Modeling for 3D-printed Multi-material Computational Object Design via Python Open
This paper introduces open-source contributions designed to accelerate research in volumetric multi-material additive manufacturing and metamaterial design. We present a flexible Python-based API facilitating parametric expression of multi…
View article: Implicit Toolpath Generation for Functionally Graded Additive Manufacturing via Gradient-Informed Slicing
Implicit Toolpath Generation for Functionally Graded Additive Manufacturing via Gradient-Informed Slicing Open
This paper presents a novel gradient-informed slicing method for functionally graded additive manufacturing (FGM) that overcomes the limitations of conventional toolpath planning approaches, which struggle to produce truly continuous gradi…
View article: Characterization of organic fouling on thermal bubble-driven micro-pumps
Characterization of organic fouling on thermal bubble-driven micro-pumps Open
Thermal bubble-driven micro-pumps are an upcoming micro-actuator technology that can be directly integrated into micro/mesofluidic channels, have no moving parts, and leverage existing mass production fabrication approaches. These micro-pu…
View article: Tunable Metamaterials for Impact Mitigation
Tunable Metamaterials for Impact Mitigation Open
Traditional methods of shielding fragile goods and human tissues from impact energy rely on isotropic foam materials. The mechanical properties of these foams are inferior to an emerging class of metamaterials called plate lattices, which …
View article: Digital Multiphase Composites via Additive Manufacturing
Digital Multiphase Composites via Additive Manufacturing Open
Mechanical properties of traditional engineering materials are typically coupled to each other, presenting a challenge to practitioners with multi‐dimensional material property requirements. In this work, continuous, independent control ov…
View article: Femtosecond laser fabricated nitinol living hinges for millimeter-sized robots
Femtosecond laser fabricated nitinol living hinges for millimeter-sized robots Open
Nitinol is a smart material that can be used as an actuator, a sensor, or a structural element, and has the potential to significantly enhance the capabilities of microrobots. Femtosecond laser technology can be used to process nitinol whi…
View article: Determining Optimal Print Orientation Using GPU-Accelerated Convex Hull Analysis
Determining Optimal Print Orientation Using GPU-Accelerated Convex Hull Analysis Open
In fused filament fabrication (FFF), the orientation of a part within the printer volume can dramatically affect print quality and probability of success. An object's orientation determines how much support structure will be required and t…
View article: The Inner Complexities of Multimodal Medical Data: Bitmap-Based 3D Printing for Surgical Planning Using Dynamic Physiology
The Inner Complexities of Multimodal Medical Data: Bitmap-Based 3D Printing for Surgical Planning Using Dynamic Physiology Open
Motivated by the need to develop more informative and data-rich patient-specific presurgical planning models, we present a high-resolution method that enables the tangible replication of multimodal medical data. By leveraging voxel-level c…
View article: Mechanical Characterization and Constitutive Modeling of 3D Printable Soft Materials
Mechanical Characterization and Constitutive Modeling of 3D Printable Soft Materials Open
Numerical modeling of soft matter has the potential to enable exploration of the soft robotic field's next frontier: human/machine cooperative design. However, access to material models suitable for predicting the behavior of soft matter i…
View article: Rapid Fabrication of Low-Cost Thermal Bubble-Driven Micro-Pumps
Rapid Fabrication of Low-Cost Thermal Bubble-Driven Micro-Pumps Open
Thermal bubble-driven micro-pumps are an upcoming actuation technology that can be directly integrated into micro/mesofluidic channels to displace fluid without any moving parts. These pumps consist of high power micro-resistors, which we …
View article: Defining Soft Tissue: Bitmap Printing of Soft Tissue for Surgical Planning
Defining Soft Tissue: Bitmap Printing of Soft Tissue for Surgical Planning Open
Nearly all applications of 3D printing for surgical planning have been limited to bony structures and simple morphological descriptions of complex organs due to the fundamental limitations in accuracy, quality, and efficiency of the curren…
View article: Electro-Osmotic Gripper Characterization for Layered Assembly
Electro-Osmotic Gripper Characterization for Layered Assembly Open
Layered assembly is a voxel-based additive manufacturing process that relies on parallel grasping of voxels to produce multi-material parts. Although there exists substantial diversity in mechanisms of gripping, there still exists a lack o…
View article: Computational Robot Design and Customization
Computational Robot Design and Customization Open
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View article: The Surprising Creativity of Digital Evolution: A Collection of Anecdotes from the Evolutionary Computation and Artificial Life Research Communities
The Surprising Creativity of Digital Evolution: A Collection of Anecdotes from the Evolutionary Computation and Artificial Life Research Communities Open
Evolution provides a creative fount of complex and subtle adaptations that often surprise the scientists who discover them. However, the creativity of evolution is not limited to the natural world: Artificial organisms evolving in computat…
View article: Solar-powered radio tags reveal patterns of post-fledging site visitation in adult and juvenile Tree Swallows Tachycineta bicolor
Solar-powered radio tags reveal patterns of post-fledging site visitation in adult and juvenile Tree Swallows Tachycineta bicolor Open
The availability of small, lightweight tracking devices enhances our ability to study birds during mobile phases of their lives. Tree Swallows Tachycineta bicolor, a model species of wild songbird, are well-studied during their breeding se…
View article: The Surprising Creativity of Digital Evolution: A Collection of Anecdotes from the Evolutionary Computation and Artificial Life Research Communities
The Surprising Creativity of Digital Evolution: A Collection of Anecdotes from the Evolutionary Computation and Artificial Life Research Communities Open
Biological evolution provides a creative fount of complex and subtle adaptations, often surprising the scientists who discover them. However, because evolution is an algorithmic process that transcends the substrate in which it occurs, evo…
View article: 1D Printing of Recyclable Robots
1D Printing of Recyclable Robots Open
Recent advances in 3D printing are revolutionizing manufacturing, enabling the fabrication of structures with unprecedented complexity and functionality. Yet biological systems are able to fabricate systems with far greater complexity usin…
View article: Understanding spatial distributions: negative density-dependence in prey causes predators to trade-off prey quantity with quality
Understanding spatial distributions: negative density-dependence in prey causes predators to trade-off prey quantity with quality Open
Negative density-dependence is generally studied within a single trophic level, thereby neglecting its effect on higher trophic levels. The ‘functional response’ couples a predator's intake rate to prey density. Most widespread is a type I…