Looking for Relay automatic assembly line? Get this 3D model from chanway2012 via CGTrader for $29.
SLDPRT (SolidWorks, filesize: 141 MB), MAX (Autodesk 3ds Max, filesize: 1.91 GB), STP (STEP, filesize: 160 MB), DXF (DXF, filesize: 152 MB), DWG (AutoCAD, filesize: 45.3 MB), IGE (IGES, filesize: 146 MB)