addwood is a research project launched in 2020 and funded by the German Agency for Renewable Resources (FNR). The project focuses on developing a bio-based material for additive manufacturing using exclusively natural ingredients derived from wood-processing residues.

The material is produced by combining sawdust with a water-soluble natural binder to create a printable paste. This paste is processed through additive manufacturing techniques, enabling the fabrication of three-dimensional objects. The production process is designed for minimal energy consumption, and printed components are dried using a cold air stream rather than heat-intensive methods.

The system follows a circular approach: printed parts can be shredded at the end of their use phase and reprocessed into new printing material. The resulting components are reported to achieve mechanical strength comparable to chipboard while maintaining a lower density. This combination allows for the design and production of voluminous, irregularly shaped furniture and interior elements.