The rectangular frame is "Simple" (model 6101) STL

The rectangular frame "Simple" (Model 6101) features a narrow geometric profile complemented by a concise relief pattern directed inward along the perimeter. The upper header, side elements, and lower section are designed in a uniform style without dominant central cartouches, utilizing stylized floral scrolls and leaf motifs. Historically, narrow profiled frames with inward-directed ornamentation became widespread in framing practices during the second half of the 19th century, when standardized production methods shifted preferences from massive molded constructions to restrained profiles enclosing replicated lithographs and photographs. The model is intended for framing wall mirrors, paintings, tapestries, portraits, and creating accent interior elements.

The 3D model is provided in STL format and optimized for milling on CNC machines. The relief is adapted for machining solid wood, MDF, and modeling plastics. The preparation of toolpaths for CNC equipment is performed in specialized software such as ArtCAM, NC Studio, or Mach3, taking into account the parameters of the cutting tool.