Square frame "Four Boards" (model 6107) STL model of the original square shape made in the form of four tied tackles and roughly processed boards, with a continuous rear background. A selection of STL models for decorative work and creating visual accents for decorating rooms. All models in STL format compatible with ARTCAM, to create a code in Mach3, for the NC Studio program, 3D for CNC wood milling machines and plastic. The use of these elements is possible both on CNC machines for home use and on industrial CNC machines.