The rectangular frame is "Simple" (model 6101) STL model of the original narrow rectangular shape with a simple thin pattern directed inside the frame. The thematic selection of STL models for designing paintings and creating decorative elements for the stylization of space. Models in STL format for ArtCAM, to create code in Mach3, for the NC Studio program, 3D for CNC wood mills and plastic. Models are designed for use both on CNC machines for home use and on industrial CNC machines.