Gramazio Kohler Research
Open Positions
Compas FAB
Compas Timber
AIXD: AI-eXtended Design
AI-Augmented Architectural Design
Impact Printing
AR Timber Assemblies
Architectural Design with Conditional Autoencoders
Integrated 3D Printed Facade
Think Earth SP7
Robotic Plaster Spraying
Additive Manufactured Facade
Human-Machine Collaboration
Timber Assembly with Distributed Architectural Robotics
Eggshell Benches
Autonomous Dry Stone
Data Driven Acoustic Design
Mesh Mould Prefabrication
Data Science Enabled Acoustic Design
Thin Folded Concrete Structures
Adaptive Detailing
Deep Timber
Robotic Fabrication Simulation for Spatial Structures
Jammed Architectural Structures
Digital Ceramics
On-site Robotic Construction
Mesh Mould Metal
Smart Dynamic Casting and Prefabrication
Spatial Timber Assemblies
Robotic Lightweight Structures
Mesh Mould and In situ Fabricator
Complex Timber Structures
Spatial Wire Cutting
Robotic Integral Attachment
Mobile Robotic Tiling
YOUR Software Environment
Aerial Construction
Smart Dynamic Casting
Topology Optimization
Mesh Mould
Acoustic Bricks
Additive processes
Room acoustics
Multi-robotic setup
Summerschool setup

Surface test samples
SWC cutting principle

Spatial Wire Cutting, ETH Zurich, 2013-2016
PhD Research Project
This research investigates a multi-robotic hot-wire cutting technique that allows to significantly expand the set of possible hot-wire cutting geometries. In contrast to standard computer-controlled hot-wire cutting processes, in which the cutting medium remains straight, this technique modulates the curvature of the hot-wire, which adopts itself against the resistance of the processed material. This allows to produce a particular family of double-curved surface geometries: sweep surfaces defined by the motion of an altering profile curve along two guide curves.

The aim of this research is to develop methods and techniques that allow to control this cutting technique and to foresee its outcome. Knowledge is acquired directly from the physical form-finding process and implemented in a respective digital model. The research investigates material- and fabrication process-related constraints, correlations between operating physical factors, such as heat input, cutting speeds, resulting cutting forces and wire shape. It develops and validates suitable design, simulation and fabrication techniques and examines possible architectural applications, such as the time-efficient production of formwork components at full architectural scale.


Rust, Romana, David Jenny, Fabio Gramazio, Matthias Kohler. "Spatial Wire Cutting - Cooperative robotic cutting of non-ruled surface geometries for bespoke building components." In Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA 2016), S. Chien, S. Choo, M. A. Schnabel, W. Nakapan, M. J. Kim, S. Roudavski, Hong Kong, China: The Association for Computer-Aided Architectural Design Research in Asia (CAADRIA), 2016.

Rust, Romana, Fabio Gramazio, Matthias Kohler. "Force Adaptive Hot-Wire Cutting : Integrated Design, Simulation, and Fabrication of Double-Curved Surface Geometries." In Advances in Architectural Geometry 2016, Sigrid Adriaenssens, Fabio Gramazio, Matthias Kohler, Achim Menges, and Mark Pauly, 288-305. Zürich: Hochschulverlag an der ETH Zürich, 2016.

Gramazio Kohler Research, ETH Zurich

Collaborators: Romana Rust (project lead)
Sponsors: Swisspor®

Copyright 2024, Gramazio Kohler Research, ETH Zurich, Switzerland
Gramazio Kohler Research
Chair of Architecture and Digital Fabrication
ETH Zürich HIB E 43
Stefano-Franscini Platz 1 / CH-8093 Zurich

+41 44 633 49 06
Follow us on:
Vimeo | Instagram