In the add existing component dialo

In the add existing component dialog box that appears, change the positioning method from absolutely to pair, leaving the layer options unchanged, and click ok.Select the surface pairing as shown in the figure, determine the "pairing plane", the rear cover "2" assembly is completed, and then continue to load the file "3" gasket. The method is the same as the rear cover, except that the plane chosen is different. Next comes the assembly of the fan blade parts. Since the hole between the fan blade and the backseat and the shaft may not be fully positioned, after matching the inner surface of the selected hole to the outer surface of the shaft, click "distance" to -20mm. See figure 2.36.During the assembly process, an unsuccessful selection may occur. NX provides a command to reposition components that can be easily and quickly modified.