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MATERIALS 47
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To repurpose pellets, the following steps are taken: • Printing layer-by-layer to create complex geometries with
• They are ground into fine granules; customisable features;
• They are blended with thermoplastics (e.g., HDPE or PP); • Enabling low-waste, customisable smart furniture structures.
• They are extruded or moulded into WPC panels.

Case Example: Forust
The resulting WPC offers moderate mechanical stability, Forust converts wood sawdust and recycled wood pellets into
moisture resistance, and processability for non-load-bearing high-resolution furniture pieces via binder jetting 3D printing.
components (e.g., shelves, panelling). • While still in early commercialisation, it demonstrates how
The development of smart furniture requires the seamless waste wood can re-enter the production cycle through
integration of digital technologies into the physical structure advanced fabrication technologies.
of furniture. This includes the following: • Some Forust components are compatible with embedded
• Sensors to detect presence, temperature, posture, or electronics or modular fittings.
movement;

• IoT modules for connectivity and device control via Despite these promising developments, several technical
smartphone or voice assistants; and practical challenges remain in implementing pellet-derived
• Energy modules such as wireless charging pads or solar- composites in smart furniture as shown in Table 2:
powered lighting.
Table 2: Technical and practical challenges remain
in implementing pellet-derived composites in smart
When combining engineered WPCs (derived from wood furniture.
pellet feedstock) with smart systems, certain considerations Challenge Description Potential Mitigation
Structural Integrity WPCs are weaker than Limited use to non-
emerge: solid wood for load- structural elements;
• Heat dispersion and electrical insulation must be managed bearing components reinforced with steel
inserts
through material coatings or housing compartments.
Thermal Management Embedded electronics Design with ventilated or
• Modular design is preferred to separate smart modules generate heat that WPCs separated compartments
may not dissipate well
from base structure for maintenance and upgrade flexibility.
Moisture Sensitivity Wood-based composites Surface treatments
may swell or degrade or hydrophobic resin
in humid environments coatings
Case Example: Ori Living
Electronics Integration Wiring channels, Modular assembly
• Ori designs app-controlled transformable furniture systems insulation, and module and standardisation
replacement increase protocols
with embedded motion sensors and actuators. complexity
• While Ori does not use wood pellet composites, it exemplifies
the technical and ergonomic sophistication required for
smart integration. Case Example: IKEA x Little Sun Collaboration
• Research has developed solar-powered furniture using
Additive manufacturing, particularly pellet-based 3D printing, sustainable panels (pressed wood boards, renewable
provides a frontier for transforming wood pellet derivatives plastics).
into furniture components. This process involves the following: • Lessons highlight the need for durability, modularity, and

• Feeding reprocessed wood-polymer mixtures into a large- user-friendliness in smart furniture systems using alternative
scale 3D printer; materials.