Capricate

Schmitz, Martin; Khalilbeigi, Mohammadreza; Balwierz, Matthias; Lissermann, Roman; Mühlhäuser, Max; Steimle, Jürgen

doi:10.1145/2807442.2807503

Cited by 142 publications

(35 citation statements)

References 18 publications

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“…Augmenting physical objects with input and output capabili ties is an essential component of ubiquitous computing. Com monly used input modalities include touch [3,9,44,45,54], deformation [34,46], and expressive gestures [42]. There are also numerous works investigating how to technically realize output modalities such as visual [25,32,34,54] and auditory output [25,32].…”

Section: Related Workmentioning

confidence: 99%

“…At the same time, as printable electronics commonly are very thin and deformable, more demanding geometries and advanced I/O capabilities can be realized. Prior work has demonstrated ap proaches based on printed electronics to equip custom-shaped 3D objects with various types of printed sensors for capturing user input [11,34,44,45,54] and printable output compo nents, including light-emitting displays [35,54] and actuators for shape-change [7,57].However, tactile output was so far left unaddressed. Fab ricating custom interactive objects that include computercontrolled tactile output still relies on manually assembling conventional components [15,36].…”

mentioning

confidence: 99%

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Tactlets

Groeger

Feick

Withana

et al. 2019

Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology

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edge slider buttons Tactlet library real-time control a b c d Figure 1. Tactlets is a novel approach enabling digital design and rapid printing of custom, high-resolution controls for tactile output with integrated touch sensing on interactive objects. (a) A design tool allows a designer to add Tactlet controls from a library and customize them for 3D object geometries. The designer can then fabricate a functional prototype using conductive inkjet printing (b) or 3D printing (c), and explore the interactive behavior of the Tactlet control. (d) This approach allows for rapid design iterations to prototype tactile input and output on a variety of objects. ABSTRACTRapid prototyping of haptic output on 3D objects promises to enable a more widespread use of the tactile channel for ubiqui tous, tangible, and wearable computing. Existing prototyping approaches, however, have limited tactile output capabilities, require advanced skills for design and fabrication, or are in compatible with curved object geometries. In this paper, we present a novel digital fabrication approach for printing cus tom, high-resolution controls for electro-tactile output with integrated touch sensing on interactive objects. It supports curved geometries of everyday objects. We contribute a de sign tool for modeling, testing, and refining tactile input and output at a high level of abstraction, based on parameterized electro-tactile controls. We further contribute an inventory of 10 parametric Tactlet controls that integrate sensing of user input with real-time electro-tactile feedback. We present two approaches for printing Tactlets on 3D objects, using conduc tive inkjet printing or FDM 3D printing. Empirical results from a psychophysical study and findings from two practi cal application cases confirm the functionality and practical feasibility of the Tactlets approach.•Human-centered computing → Human computer inter action (HCI); Haptic devices; Interactive systems and tools; Interface design prototyping;Digital fabrication has been proposed as a new method for rapid prototyping of interactive devices [10,25,34,32,44]. By printing the custom device, rather than manually assembling it from conventional electronic components, the fabrication process can be considerably simplified and sped up. At the same time, as printable electronics commonly are very thin and deformable, more demanding geometries and advanced I/O capabilities can be realized. Prior work has demonstrated ap proaches based on printed electronics to equip custom-shaped 3D objects with various types of printed sensors for capturing user input [11,34,44,45,54] and printable output compo nents, including light-emitting displays [35,54] and actuators for shape-change [7,57].However, tactile output was so far left unaddressed. Fab ricating custom interactive objects that include computercontrolled tactile output still relies on manually assembling conventional components [15,36]. Moreover, the rather large

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Section: Related Workmentioning

confidence: 99%

mentioning

confidence: 99%

Tactlets

Groeger

Feick

Withana

et al. 2019

Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Software systems, such as Midas [175] support the integration of electrode patterns with sensing electronics. Several works incorporate electrodes into 3D printed structures, enabling fast prototyping [20,149,177] and easy personalization [61].…”

Section: Support For End-to-end Prototypingmentioning

confidence: 99%

“…For example, capacitive sensing can be enabled on printed objects by filling tubes inside the objects with conductive inks [174], interrupting the print process to integrate electronics [181] or combining conductive and non-conductive print materials [20,123,177]. Conductive yarns and fabrics open new possibilities for flexible electrode design, e.g., the integration into clothing [8,30,92,152,185].…”

Section: Sensor Design and Fabricationmentioning

confidence: 99%

“…Hardware for the shunt, transmit, and receive modes is similar and usually consists of an oscillator connected to the transmit electrode to generate an electric field, and an amplifier and analog-to-digital converter (ADC) connected to the receive electrode. In loading mode, [42,64,132,162] →Ink [59,57,58] →Paint [18] →Metalization [208] Gold -non-corrosive, skin-friendly →Gold leaf [98] →Gold coating [11] Aluminum -flexible, high availability →Foil [70,147,196,202] →Mylar [190] Silver -non-corrosive, flexible →Ink [76,87,105,108,203]+ →Thread/Yarn [185] →Plate [67] Carbon -enabling electrical conductivity →Ink [203] →Carbon-filled PDMS (cPDMS) [217] →Filament [20,123,177] ITO -transparent electrodes [64,119,199] Anisotropic materials -directing e-fields →Anisotropic 'Zebra' tape [91] →Anisotropic 'Zebra' rubber [24] Other materials →Water [41,173] & Plants [153] →Ionized gas [72] →Metal objects [43,68,173,207,226]+ →Electro-optic crystal [...…”

Section: Sensing Electronicsmentioning

confidence: 99%

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Finding Common Ground

Große-Puppendahl

Holz

Cohn

et al. 2017

Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems

164

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For more than two decades, capacitive sensing has played a prominent role in human-computer interaction research. Capacitive sensing has become ubiquitous on mobile, wearable, and stationary devices-enabling fundamentally new interaction techniques on, above, and around them. The research community has also enabled human position estimation and whole-body gestural interaction in instrumented environments. However, the broad field of capacitive sensing research has become fragmented by different approaches and terminology used across the various domains. This paper strives to unify the field by advocating consistent terminology and proposing a new taxonomy to classify capacitive sensing approaches. Our extensive survey provides an analysis and review of past research and identifies challenges for future work. We aim to create a common understanding within the field of human-computer interaction, for researchers and practitioners alike, and to stimulate and facilitate future research in capacitive sensing.

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Recent Progress in Biomimetic Additive Manufacturing Technology: From Materials to Functional Structures

et al. 2018

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Nature has developed high-performance materials and structures over millions of years of evolution and provides valuable sources of inspiration for the design of next-generation structural materials, given the variety of excellent mechanical, hydrodynamic, optical, and electrical properties. Biomimicry, by learning from nature's concepts and design principles, is driving a paradigm shift in modern materials science and technology. However, the complicated structural architectures in nature far exceed the capability of traditional design and fabrication technologies, which hinders the progress of biomimetic study and its usage in engineering systems. Additive manufacturing (three-dimensional (3D) printing) has created new opportunities for manipulating and mimicking the intrinsically multiscale, multimaterial, and multifunctional structures in nature. Here, an overview of recent developments in 3D printing of biomimetic reinforced mechanics, shape changing, and hydrodynamic structures, as well as optical and electrical devices is provided. The inspirations are from various creatures such as nacre, lobster claw, pine cone, flowers, octopus, butterfly wing, fly eye, etc., and various 3D-printing technologies are discussed. Future opportunities for the development of biomimetic 3D-printing technology to fabricate next-generation functional materials and structures in mechanical, electrical, optical, and biomedical engineering are also outlined.

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Capricate

Cited by 142 publications

References 18 publications

Tactlets

Tactlets

Finding Common Ground

Recent Progress in Biomimetic Additive Manufacturing Technology: From Materials to Functional Structures

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