The smart cabinet of BCN3D Epsilon W50 SC 3D printer can hold up to 8 rolls of small spool materials (between 750g-1kg), or 4 rolls of large spools (maximum 2.5kg), which is convenient for users to overlap printing when printing volumetric models and reduce insufficient materials. Some materials that are very susceptible to moisture, such as nylon and PVA, are used in small amounts. Smart Cabinet intelligent humidity control material box is even more important.