About
I am the founder and CEO of HiOperator, a disruptive AI-augmented customer service…
Articles by Liz
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HiOperator Supercharges Customer Support with HiLite AI
HiOperator Supercharges Customer Support with HiLite AI
By Liz Tsai
Activity
Experience
Education
Publications
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4D Printing: Towards Biomimetic Additive Manufacturing
Additive Manufacturing & 3D Printing International Conference
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Freeform 3D Printing: toward a Sustainable Approach to Additive Manufacturing
Green Design, Materials and Manufacturing Processes published by Taylor & Francis Green Design, Materials and Manufacturing Processes published by Taylor & Francis , ISBN: 978-1-138-00046-9
Most additive manufacturing technologies, such as 3D printing, utilize support materials in the fabrication process. Beyond the technical challenges of support removal, these materials are wasteful – increasing fabrication and processing time while impacting quality. This paper presents “Freeform Printing”, a novel design approach for 3D printing without additional auxiliary structures. A 6-axis KUKA robotic arm is repurposed as a 3D printing platform onto which custom-designed thermoplastic…
Most additive manufacturing technologies, such as 3D printing, utilize support materials in the fabrication process. Beyond the technical challenges of support removal, these materials are wasteful – increasing fabrication and processing time while impacting quality. This paper presents “Freeform Printing”, a novel design approach for 3D printing without additional auxiliary structures. A 6-axis KUKA robotic arm is repurposed as a 3D printing platform onto which custom-designed thermoplastic extruders are attached. We demonstrate freeform extrusion using a round nozzle attached to an active air-cooling unit, which solidifies the material upon extrusion. In addition, we present a method for printing geometrically complex structures using a multi-strand extrusion nozzle. The experiments presented in this paper, combined with their evaluation and analysis, provide proof-of-concept for Freeform Printing without support materials. They represent a sustainable approach to additive manufacturing and digital fabrication at large, and point towards new possible directions in sustainable manufacturing.
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Digital anisotropy: A variable elasticity rapid prototyping platform
Virtual and Physical Prototyping
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Functionally Graded Rapid Prototyping
Proceedings of VRAP: Advanced Research in Virtual and Rapid Prototyping
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Honors & Awards
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Winner of the MIT 100k Accelerate Competition
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IDEAS MIT Global Challenge Award
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James Dyson Award Runner Up
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Winner, Best Product Design, MIT Hacking Medicine Conference
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MIT Jeffrey L. Pressman Award
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MIT Alex Laats (1989) Undergraduate Research Award
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Languages
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English
Native or bilingual proficiency
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Chinese
Professional working proficiency
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