Clock 3D model STL file is designed for CNC machines, CNC routers. These 3D model files can be applied to any CNC engraving cutting program such as Artcam, Aspire, Cut3d, and other software.3D model STL is also applicable for 3D printing programs for 3D printersAfter payment, you will receive a link to download 3d model files directly at www.okvector.com and the download link is auto-sent to your email.