The Living Fibers — robotic needle felting

03 / DIGITAL TO PHYSICAL · ROBOTICS

THE LIVING
FIBERS

MATERIAL

CATALAN WOOL

METHOD

ROBOTIC NEEDLE-FELTING

YEAR

2025

STUDIO

MAA/MRAC

SCROLL

RESEARCH

WOOL AS
STRUCTURE

This research investigates locally-sourced Catalan wool as a structural building material — not merely passive insulation. The team developed a custom robotic end-effector for a six-axis robotic arm, capable of performing dry needle-felting with programmable control over fiber entanglement density.

By mapping tool path speed, RPM, and penetration depth, the system creates programmed density gradients that allow wool to crease, fold, and hold structural tension — without the need for synthetic binders. The result is a biomaterial that bridges vernacular craft and precision digital fabrication.

ROBOTIC PROCESS

END-EFFECTOR MOTION

END-EFFECTOR MOTION

NEEDLE FELTING SEQUENCE

NEEDLE FELTING SEQUENCE

FIBER ENTANGLEMENT

FIBER ENTANGLEMENT

DENSITY MAPPING

DENSITY MAPPING

FOLD + CREASE LOGIC

FOLD + CREASE LOGIC

STRUCTURAL TENSION

STRUCTURAL TENSION

OUTPUT

THREE
TYPOLOGIES

01

LINKED PANELS

Modular, interlocking wool surfaces that can be assembled into scalable planar configurations — combining insulation performance with structural continuity.

02

PERMANENT FORMWORK

Tensioned wool bases serve as bio-composite formwork, allowing secondary materials to cure directly against the felted surface without synthetic binders.

03

DEPLOYABLE TENSION STRUCTURES

Yarn-based systems that leverage wool's tensile properties to create pre-stressed deployable elements — activated by geometry rather than mechanical fasteners.

Tool process animation

CUSTOM END-EFFECTOR — NEEDLE FELTING ON 6-AXIS ARM

TEAM

Nikos Kalaitzidis

Brooklyn Edsall

Leonard Elias Böker

Elias El Asmar

Nisanth Anil Menon

FACULTY

Edouard Cabay

Pit Siebenaler

PROJECT DETAILS

STUDIORobotics for Ecological Buildings
PROGRAMMAA01 / MRAC01
INSTITUTIONIAAC Poble Nou, Barcelona
MATERIALCatalan wool (local source)
TOOLS6-axis robot · Dry needle-felting
YEAR2025 — 2026
READ ON IAAC BLOG ↗← ALL PROJECTS