3D printing introduced ways of complex structure design which cannot be realized by traditional processing methods. The use of microstructures, where the thickness of each strut scale of tens of microns ranges from 0.2mm to 0.5mm, has the capabilities necessary to change the physical properties of objects (metamaterials) such as: elasticity, resistance, hardness. In other words, these capabilities allow physical objects to become lighter or flexible. The pattern has to adhere to geometric constraints (shape regulations), thickness constraints (minimum thickness control), or can be enforced using optimization methods (microstructure shape and topological optimization). There are many innovations occurring in this field and many 3d printers are being researched and built just to specialize i
