3D models for CNC routers artcam STL ( files 3D alleviation models from Artcam Aspire STL files are used in CNC. Configuration of the model: STL (as well as a BMP grayscale map) These 3D assistance models are suitable for use with Artcam, Aspire, or any 3D programming software. The 3D model is commonly used to cut bed entrance furniture, therefore you’ll need a CNC switch. For certain models, the quality is the same as seen in the image.