Abstract
Wood is a complex cellular material because of its heterogeneity and variability. The first level of variability is that of the species, which controls the organization of the woody plane, which is specific to it. But within the same species, with the same genetic baggage, each tree has its own mode of growth, of wood formation, which are then strongly dependent on the region, the plot, in which it develops but also on the local environment of the individual. Finally, each year, each season imposes its own environmental conditions of growth which will modulate the biological processes. In addition, there are the local specificities of the wood linked to particular developments such as knots, the presence of reaction wood, etc.But, finally, even among those who work with wood on a daily basis, few have the opportunity to spend hours under a microscope to appreciate all this complexity and diversity of structures. And yet, many teachers, in high school, university or in a wood science engineering school, wish to have their students observe these fascinating structures.There is now a theoretically simple solution, a little more complex to implement, which makes it possible to put in the hands of all, an object, exact copy of an anatomical structure of wood in 3D.