Fabrication Techniques

会議の名前
CHI 2025
Creating Furniture-Scale Deployable Objects with a Computer-Controlled Sewing Machine
要旨

We introduce a novel method for fabricating functional flat-to-shape objects using a large computer-controlled sewing machine (11 ft / 3.4m wide), a process that is both rapid and scalable beyond the machine's sewable area. Flat-to-shape deployable objects can allow for quick and easy need-based activation, but the selective flexibility required can involve complex fabrication or tedious assembly. In our method, we sandwich rigid form-defining materials, such as plywood and acrylic, between layers of fabric. The sewing process secures these layers together, creating soft hinges between the rigid inserts which allow the object to transition smoothly into its three-dimensional functional form with little post-processing.

著者
Sapna Tayal
Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
Lea Albaugh
Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
James McCann
Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
Scott E. Hudson
Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
DOI

10.1145/3706598.3713735

論文URL

https://dl.acm.org/doi/10.1145/3706598.3713735

動画
IntelliLining: Activity Sensing through Textile Interlining Sensors Using TENGs
要旨

We introduce a novel component for smart garments: smart interlining, and validate its technical feasibility through a series of experiments. Our work involved the implementation of a prototype that employs a textile vibration sensor based on Triboelectric Nanogenerators (TENGs), commonly used for activity detection. We explore several unique features of smart interlining, including how sensor signals and patterns are influenced by factors such as the size and shape of the interlining sensor, the location of the vibration source within the sensor area, and various propagation media, such as airborne and surface vibrations. We present our study results and discuss how these findings support the feasibility of smart interlining. Additionally, we demonstrate that smart interlinings on a shirt can detect a variety of user activities involving the hand, mouth, and upper body, achieving an accuracy rate of 93.9% in the tested activities.

著者
Mahdie Ghane Ezabadi
Simon Fraser University, Burnaby, British Columbia, Canada
Aditya Shekhar Nittala
University of Calgary, Calgary, Alberta, Canada
Xing-Dong Yang
Simon Fraser University, Burnaby, British Columbia, Canada
Te-Yen Wu
Florida State University, Tallahassee, Florida, United States
DOI

10.1145/3706598.3713167

論文URL

https://dl.acm.org/doi/10.1145/3706598.3713167

動画
Slip Casting as a Machine for Making Textured Ceramic Interfaces
要旨

Ceramics provide a rich domain for exploring craft, fabrication, and diverse material textures that enhance tangible interaction. In this work, we explored slip-casting, a traditional ceramic technique where liquid clay is poured into a porous plaster mold that absorbs water from the slip to form a clay body. We adapted this process into an approach we called Resist Slip-Casting. By selectively masking the mold’s surface with stickers to vary its water absorption rate, our approach enables makers to create ceramic objects with intricate textured surfaces, while also allowing the customization of a single mold for different outcomes. In this paper, we detail the resist slip-casting process and demonstrate its application by crafting a range of tangible interfaces with customizable visual symbols, tactile features, and decorative elements. We further discuss our approach within the broader conversation in HCI on fabrication machines that promote creative collaboration between humans, materials, and tools.

受賞
Honorable Mention
著者
Bo Han
National University of Singapore, Singapore, Singapore
Jared Lim
National University of Singapore, Singapore, Singapore
Kianne Lim
National University of Singapore, Singapore, Singapore
Adam Choo
National University of Singapore, Singapore, Singapore
Ching Chiuan Yen
National University of Singapore, Singapore, Singapore, Singapore
Genevieve Ang
Independent Artist, Singapore, Singapore
Clement Zheng
National University of Singapore, Singapore, Singapore
DOI

10.1145/3706598.3714396

論文URL

https://dl.acm.org/doi/10.1145/3706598.3714396

動画
Selective Water-Based Hardening of Polyvinyl Alcohol (PVA) Knitted Textiles
要旨

The increasing emphasis on sustainable practices in HCI requires the development of new materials-based approaches for fabrication, which consider degradation and recycling. In particular, textile products containing rigid elements are usually hard to recycle since they are assembled from different materials, which must be disassembled before recycling. We introduce a novel method for fabricating knitted textile objects containing both soft and rigid segments using PVA (Polyvinyl Alcohol). PVA is a biodegradable synthetic material that dissolves in water. When exposed to a controlled amount of water and dried, the textile hardens and becomes rigid. We contribute a hardening method and protocol. Additionally, we present methods to achieve selective hardening by using intarsia knitting with two types of PVA. After being subjected to the hardening protocol, one type of PVA hardens while the other remains soft. To illustrate the potential, capabilities, and applications, a series of selectively hardened knitted objects are presented.

著者
Shahar Asor
Technion, Haifa, Israel
Yoav Sterman
Technion, Haifa, State, Israel
DOI

10.1145/3706598.3714309

論文URL

https://dl.acm.org/doi/10.1145/3706598.3714309

動画
TactStyle: Generating Tactile Textures with Generative AI for Digital Fabrication
要旨

Recent work in Generative AI enables the stylization of 3D models based on image prompts. However, these methods do not incorporate tactile information, leading to designs that lack the expected tactile properties. We present TactStyle, a system that allows creators to stylize 3D models with images while incorporating the expected tactile properties. TactStyle accomplishes this using a modified image-generation model fine-tuned to generate heightfields for given surface textures. By optimizing 3D model surfaces to embody a generated texture, TactStyle creates models that match the desired style and replicate the tactile experience. We utilize a large-scale dataset of textures to train our texture generation model. In a psychophysical experiment, we evaluate the tactile qualities of a set of 3D-printed original textures and TactStyle's generated textures. Our results show that TactStyle successfully generates a wide range of tactile features from a single image input, enabling a novel approach to haptic design.

著者
Faraz Faruqi
MIT CSAIL, Cambridge, Massachusetts, United States
Maxine Perroni-Scharf
MIT, Cambridge, Massachusetts, United States
Jaskaran Singh. Walia
Vellore Institute of Technology, Chennai, India
Yunyi Zhu
MIT CSAIL, Cambridge, Massachusetts, United States
Shuyue Feng
Zhejiang University, Hangzhou, China
Donald Degraen
University of Canterbury, Christchurch, New Zealand
Stefanie Mueller
MIT CSAIL, Cambridge, Massachusetts, United States
DOI

10.1145/3706598.3713740

論文URL

https://dl.acm.org/doi/10.1145/3706598.3713740

動画
LuxKnit: Fabricating Interactive Display Textiles Integrated with Sensing by Machine Knitting
要旨

Displays are crucial in modern smart devices, conveying information visually. Wearable displays have gained increasing interest due to their ability to integrate into everyday environments while maintaining an unobtrusive presence. Textile-based displays, in particular, offer extra advantages of comfort, lightness, and natural feel. We present LuxKnit, a design and fabrication pipeline for textile-based displays with integrated sensing using digital machine knitting. LuxKnit employs electroluminescent (EL) yarn for displays and conductive yarn for sensing. We offer an interactive design interface for users to customize the display’s color, shape, position, and size. We evaluate display luminance and sensing performance across various knitted layouts, deformations, and conductive yarn types. LuxKnit offers a scalable, deformable, stretchable, washable, and interactive display textile system with applications in assistive wearables, interactive educational interfaces, interactive input devices, and common display formats like the seven-segment display.

著者
Tongyan Wang
Purdue University, West Lafayette, Indiana, United States
Mohan Chi
Purdue University, West Lafayette, Indiana, United States
Yue Yu
University of Washington, Seattle, Washington, United States
Kedi Yan
University of Washington, Seattle, Washington, United States
Mo Li
University of Washington, Seattle, Washington, United States
Yiyue Luo
University of Washington, Seattle, Washington, United States
Rua Mae. Williams
Purdue University, West Lafayette, Indiana, United States
DOI

10.1145/3706598.3713860

論文URL

https://dl.acm.org/doi/10.1145/3706598.3713860

動画
BioTube: Designing and Fabricating Biodegradable Hollow Tubular Devices Through Progressive Crosslinking Alginate
要旨

We present BioTube, a sustainable and highly accessible DIY fabrication approach for creating hollow tubular alginate, and demonstrate its potential for making biodegradable transient devices. This technique involves extruding alginate into a calcium solution, initiating a progressive crosslinking process that starts from the outer shell and progresses inward. This controlled process removes the uncrosslinked core before complete gelation, yielding hollow alginate fibers. To further enhance the capabilities of BioTube, we explored three further crosslinking strategies to customize the fiber shape, local cross-sectional geometry, and stiffness. The versatility of this method is demonstrated through three key functional primitives: shape, morphing, and sensing. These capabilities are further illustrated through five application examples, including transient wearables, edible shape-changing interfaces, experimental gastronomy, underwater grippers, and sacrificial casting molds. We believe that BioTube will expand the design possibilities for alginate, enabling the creation of innovative biodegradable devices.

著者
Yuecheng Peng
University of California, Berkeley, Berkeley, California, United States
Mako Miyatake
University of California, Berkeley, Berkeley, California, United States
Tyler L. Peng
University of California, Berkeley, Berkeley, California, United States
Qiuyu Lu
University of California, Berkeley, Berkeley, California, United States
Yue Yang
University of California, Berkeley, Berkeley, California, United States
Lining Yao
University of California, Berkeley, Berkeley, California, United States
DOI

10.1145/3706598.3714165

論文URL

https://dl.acm.org/doi/10.1145/3706598.3714165

動画