Figure 1: Starting from a 3D mesh (left), our system allows to intuitively add 3D-printable joints (center) that, when 3D-printed, create a functional, posable model with joints that exhibit internal friction. The model leaves the printer ready to use; no manual assembly is required.
AbstractAdditive manufacturing (3D printing) is commonly used to produce physical models for a wide variety of applications, from archaeology to design. While static models are directly supported, it is desirable to also be able to print models with functional articulations, such as a hand with joints and knuckles, without the need for manual assembly of joint components. Apart from having to address limitations inherent to the printing process, this poses a particular challenge for articulated models that should be posable: to allow the model to hold a pose, joints need to exhibit internal friction to withstand gravity, without their parts fusing during 3D printing. This has not been possible with previous printable joint designs. In this paper, we propose a method for converting 3D models into printable, functional, non-assembly models with internal friction. To this end, we have designed an intuitive workflow that takes an appropriately rigged 3D model, automatically fits novel 3D-printable and posable joints, and provides an interface for specifying rotational constraints. We show a number of results for different articulated models, demonstrating the effectiveness of our method.
Isolation is one of the largest contributors to a lack of wellbeing, increased anxiety and loneliness in older adults. In collaboration with elders in living facilities, we designed the Memory Music Box; a low-threshold platform to increase connectedness. The HCI community has contributed notable research in support of elders through monitoring, tracking and memory augmentation. Despite the Information and Communication Technologies field (ICT) advances in providing new opportunities for connection, challenges in accessibility increase the gap between elders and their loved ones. We approach this challenge by embedding a familiar form factor with innovative applications, performing design evaluations with our key target group to incorporate multi-iteration learnings. These findings culminate in a novel design that facilitates elders in crossing technology and communication barriers. Based on these findings, we discuss how future inclusive technologies for the older adults' can balance ease of use, subtlety and elements of Cognitively Sustainable Design.
Vocal interactions between humans and non-human animals are pervasive, but studies are often limited to communication within species. Here, we conducted a pilot exploration of vocal interactions between visitors to the San Diego Zoo Safari Park and Sampson, an 18-year-old male Hyacinth Macaw residing near the entrance. Over the course of one hour, 82 vocal and behavioral events were recorded, and various relationships between human and bird behavior were noted. Analyses of this type, applied to large datasets with assistance from artificial intelligence, could be used to better understand the impacts, positive or negative, of human visitors on animals in managed care.
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