Research Vision of CRML

Building computational innovation to drive the physical intelligence of manufacturing/robotics:
•Developing digital pipelines with geometry computing and physical modelling;
•Design/fabricate customized functional systems.
•Connecting digital/physical invention to social impact in healthcare and industry.

Robotic Advanced Manufacturing 

Multi-axis additive manufacturing (MAAM) has garnered significant attention for addressing the limitations of traditional planar-based 3D printing solutions, which rely on fixed nozzle orientations. By dynamically adjusting the local printing direction using high degrees-of-freedom  setups - e.g., robot arm, MAAM enables advanced capabilities such as support-free printing, improved surface quality, and precise control over anisotropic material properties. Our research in MAAM focuses on the following key areas:
(1) Development of scalable computational tool for curved-based slicing and spatial toolpath generation.
(2) Collision-Free Motion Planning for multi-robot and redundant MAAM systems.
(3) Integration of functional materials with MAAM to fabricate multifunctional devices.

Selected Publication:   
(p.s. ​projects listed here with clickable link are all open-source - see details in the project page.)

[1] INF-3DP: Implicit neural fields for collision-free multi-axis 3D printing, ACM Transactions on Graphics, 2025.
[2] Curve-based slicer for multi-axis DLP 3D printing,  ACM Transactions on Graphics, 2025.  (Best paper award, SIG Asia 2025)
[3] Exceptional mechanical performance by spatial printing with continuous fiberAdditive Manufacturing, 2024.
[4] Learning Based Toolpath Planner on Diverse Graphs for 3D PrintingACM Transactions on Graphics, 2023.
[5] S^3-Slicer: A general slicing framework for multi-axis 3D printing,  ACM Transactions on Graphics, 2022. (Best paper award, SIG Asia 2022)
[6] ​Field-based toolpath generation for 3D printing continuous fibre reinforced thermoplastic composites,  Additive Manufacturing, 2021.
[7] Reinforced FDM: Multi-axis filament alignment with controlled anisotropic strength,  ACM Transactions on Graphics, 2020. 
[8] Support-free volume printing by multi-axis motion,​​ ACM Transactions on Graphics, 2018. 
[9] RoboFDM: A robotic system for support-free fabrication using FDM, IEEE ICRA conference, 2017. (our research journey of MAAM starts here!)

Soft Robot

Soft robots exhibit remarkable adaptability to their surroundings and ensure safe human interaction, and the importance of computational tools in soft robotics research is well-recognized, in our group, we encompassing the research in rapid prototyping (by 3D printing), kinematics computation (for configuration space), automated design, and sensor-based proprioception in soft robots. 

Selected Publication:   
(p.s. the numerical simulator in T-RO2020, IROS 2022, and T-OG 2024 are open-source)

[1] Correspondence-Free, Function-Based Sim-to-Real Learning for Deformable Surface Control, IEEE ​Transactions on Robotics, 2025.
[2] Accelerate neural subspace-based reduced-order solver of deformable simulation by Lipschitz optimizationACM Transactions on Graphics, 2024.
[3] Spring-IMU fusion based proprioception for feedback control of soft manipulators, IEEE/ASME Transactions on Mechatronics , 2023.
[4] Efficient Jacobian-based inverse kinematics with sim-to-real transfer of soft robots by learning, IEEE/ASME Trans. Mechatronics, 2022.
[5] Soft robotic mannequin: design and algorithm for deformation control,  IEEE/ASME Transactions on Mechatronics, 2022.
[6] Sensing and reconstruction of 3D deformation on pneumatic soft robots,  IEEE/ASME Transactions on Mechatronics, 2021.
[7] Kinematics of soft robots by geometric computing, IEEE ​Transactions on Robotics, 2020, ICRA Conf. 2018.  IEEE IROS Conf. 2022.

Design/Fabrication of Customized Wearable devices

Personalized, high-performance systems tailored to individual anatomy and function have become increasingly feasible. By leveraging advanced modeling tools and data-driven design workflows, we enable the precise adaptation of devices—such as prostheses, exoskeletons, and health-monitoring wearables—to users’ unique physiological and ergonomic needs. 
Our research on wearable devices focuses on computational design and digital fabrication to enable customized, functional solutions. Through the seamless integration of computational intelligence and fabrication technologies, our approach advances the next generation of functional, comfortable, and accessible wearable systems that enhance quality of life and expand applications in healthcare and human–robot interaction. 

Selected Publication:   

[1] Design and 3D printing of lower limb prosthetic socket with metamaterials for performance enhancement, Smart Materials and Structures, 2025
[2] A textile-based alignment-free electrophysiological sensing sleeve for comprehensive cardiovascular monitoring, Microsystems & Nanoengineering, 2025
[3] Motion-Driven Neural Optimizer for Prophylactic Braces Made by Distributed Microstructures, SIG Asia Conference, 2024

[4] Computational design of fabric formwork, ACM Transactions on Graphics, 2019.
[5] Thermal-comfort design of personalized casts,
ACM symposium on user interface software and technology (UIST), 2017

Our research is supported by: