lukas rambold ✌️
hey, i’m a phd student at the hci group at hasso-plattner-institute in berlin, working on architecure-scale digital fabrication.
previously, I studied at lmu & cdtm and co-founded the government data-analytics startup polyteia.
AirTied: Automatic Personal Fabrication of Truss Structures
We present AirTied, a device that fabricates truss structures in a fully automatic fashion. AirTied achieves this by unrolling a 20cm-wide inflatable plastic tube and tying nodes into it. AirTied creates nodes by holding onto a segment of tube, stacking additional tube segments on top of it, tying them up, and releasing the result. The resulting structures are material-efficient and light as well as sturdy, as we demonstrate by creating a 6m-tower. Unlike the prior art, AirTied requires no scaffolding and no building blocks, bringing automated truss construction into the reach of personal fabrication.
project page · video · full paper at UIST’23 · talk at UIST’23 · press: arduino.cc, hpi.de
Trusscillator: System for Designing and Fabricating Dynamic Structures
Trusscillator is an end-to-end system that allows non-engineers to create human-scale human-powered devices that perform oscillatory movements, such as playground equipment, workout devices, and interactive kinetic installations.
video · full paper at UIST’21 · 🏆 best demo honorable mention
Automatic Assembly of 2D SVG Plates to 3D Models
Laser cut models are commonly shared as 2D vector information (usually SVGs). This makes it hard to alter the underlying implicit 3D model. In this work we are introducing a tool that allows users to reconstruct the 3D model from vector plate data and therefore, thus making parametric changes possible.
project results were published as full papers at CHI’21 & UIST’21
Under Pressure: Behavioral Authentication on Door Handles
Behavioral Authentication is wildly used in websites and smartphones. But how does it translate to other domains of all-day life? In this work, we equipped a door handle with resistive and capacitive touch sensors and found out in a study that we can authenticate a person pressing the handle with 88% accuracy by classifying the sensor data.
published at SECRYPT 2020 · 🏆 best poster award
TransparentHMD: Overcoming the Communication Barrier of HMDs
Many people report that when there is one person in the room who uses a VR headset, it tends to become a disconnecting experience for the others. In my bachelor thesis, I worked on improving collaboration between in-VR users and bystanders by displaying the in-VR user’s face on top of the HMD. Additionally, the system tracks the eyes of its observer to correct for the parallax error of the 2D display on the outside of the HMD.
published at MUM 2017 · discussion on HN · 🚀 shipped in Apple Vision Pro