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Details Wood Composite Filament:

For those who would like to create an object that looks and smells like wood the best idea is to use FDM (Fused Deposition Modeling) filament, named also Wood Filament.
This filament contains a mixture of recycled wood with a binding polymer. The parts printed with this material do not look like typical 3D prints because of its wood nature.
When the printing is done your print will look and smell like real wood. It can be decorated and post-processed like other objects from wood. For example, you can cut, grind and paint your item.

For more head over : Wood Composite Filament.