Danny – Danny Leen

🏆 CHI 2026 – Unit-Less Measurements with StoryStick++: Rethinking Measurement as Interactive Processes

Dimensional measurement remains one of the most error-prone activities in making, engineering, and construction, despite the technical precision of modern instruments. Errors frequently arise not from the tools themselves, but…

CHI 2026 Poster – Learning to delegate and act with DELEGACT: Multimodal language models for task-level human–cobot planning in industrial assembly

Industrial assembly is shifting toward human-robot collaboration (HRC) to leverage the complementary strengths of both agents. However, traditional task allocation referred to as the Robotic Assembly Line Balancing Problem (RALBP)…

CHI 2026 Workshop – Making it work is the work: Engineering maturity as epistemic work

Many HCI×fabrication systems are compelling as prototypes but remain difficult to reuse, extend, or transfer beyond their original publication. A common explanation is that adoption simply takes time. We argue…

CHI 2026 Poster – Seeing Isn’t Feeling: A Tooling Agenda for Iterative Perceptual Matching in Fabricated Mechanisms

Digital fabrication makes it easy to prototype how artifacts look, yet it remains hard to prototype how moving parts feel when used. For many 3D-printed interfaces such as lids, sliders,…

CHI 2024 – Designing Instructions using Self-Determination Theory to Improve Motivation and Engagement for Learning Craft

Recent HCI research has shown significant interest in investigating digital working instructions for guiding novices to perform manual tasks. While performance enhancement has been a primary focus, it is increasingly…

Tangible CNC

AUTOCRAFT: Automated Craftsmanship Skill Transfer

In the current manufacturing industry, many tasks are still handled by human operators due to the craftsmanship skill required for the job. There is a huge shortage of such skilled workers in the Flemish industry. Skilled…

CHI 2023 – Measurement Patterns: User-Oriented Strategies for Dealing with Measurements and Dimensions in Making Processes

The majority of errors in making processes can be tracked back to errors in dimensional specifications. While technical aspects of measurement, such as precision and speed have been extensively studied…

CHI 2023 Workshop – Uncovering Craft: Identifying and Capturing the Rationale Behind Actions in Craft.

Adopting digital tools and platforms has become increasingly common in many creative industries. Still, creative practitioners often require self-directed and informal learning when adopting new technologies. Our research project, AutoCraft,…

CHI 2022 Workshop – Identifying Opportunities to Reimagine Parametric Modeling for Makers

Makers often build on the work of others by customizing and combining shared designs. These designs, however, need to be specified in a way that allows for easy reuse. However,…