import os ansys_motion_objects = Model.Analyses[0].GetUserObjects("ANSYSMotion") shaft_obj = filter(lambda x: x.Name == "Shaft", ansys_motion_objects)[0] extension_path = ExtAPI.ExtensionManager.GetExtensionByName('ANSYSMotion').InstallDir dll_path = os.path.join(extension_path,"dll","ANSYSMotion.dll") clr.AddReferenceToFileAndPath(dll_path) import ANSYSMotionHelper ANSYSMotionHelper.DrivetrainCallbackClass.ImportDTGeometry(shaft_obj)