The Dremel Idea Builder Printer (3D20 & 3D40) are high quality 3D printer that goes above and beyond to mentor users through the 3D building process and introduce users to methods for turning their ideas into reality. The Dremel 3D Builder builds in 3D which means instead of putting ink onto a flat surface like in regular printing, it builds up material in three dimensions to create an object. It heats plastic filament and then draws it out in very fine layers.