The common way to process wood is by a top-down approach, based on cutting down trees to be used for fabrication of wooden objects. This approach led to enormous investment in utilizing side streams to reuse and to create sustainable wood-based products. We present a bottom-up approach using wood waste microparticles, wood flour, with cellulose nanocrystals and xyloglucan, which are extracted from wood, that builds-up wood objects through two 3D printing process, extrusion and inkjet.<br/>Depending on the printing technology, a wide range of material properties is obtained, from strong dense objects, to light cellular structure. Results show that indeed each technique with its own pros and cons mimic wood, while gaining the wide range of wood properties and beyond. Furthermore, by proper design of the printing process parameters we are able to control wood shrinkage distortion beyond natural wood.

3D printed wood

2019 Spring National Meeting

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