Artcam Aspire 3D relief models STL Files used for CNC E594 Model format: STL format(And BMP Grayscale map) Those 3D relief models are good used for Artcam,Aspire or other 3D software The 3D model are mainly are used for bed door carved furniture,So you need to have an CNC router For those models quality,Same as the picture show Flow me,you will find more and more good models,I will keep update