The frame is round "Curls" (model 6139) STL

The round frame of model 6139 features a regular circular geometry with a central round aperture. The inner perimeter is framed by a narrow band with a fine geometric ornament, while the outer contour is formed by rhythmically repeating volutes and curls that create an openwork pattern. The upper (crest) and lower sections are symmetrical, accented with paired scrolls and central floral elements. Historically, round frames became widespread during the Baroque and early Classicism eras, when advancements in sheet glass casting technology enabled the production of large-diameter mirrors that required sturdy wooden frames with deep relief to distribute structural weight. The model is intended for framing wall mirrors, paintings, tapestries, portraits, and creating accent interior elements.

The digital 3D model is provided in STL format and is designed for machining on CNC milling machines. The relief is optimized for processing solid wood, MDF, plywood, or model board. The file is compatible with standard CAM software for generating toolpaths, including ArtCAM, NC Studio, and Mach3, and is suitable for both entry-level desktop CNC equipment and industrial machining centers.