Copyright Goodheart-Willcox Co., Inc. Chapter 12 Solid Model Editing 325 Rotating Faces Next, use the Face Rotate option to rotate the tapered end of the object. The top edge of the face will be rotated away from the holes, adding volume to the solid. 1. Using Face Rotate, pick the face at the left end of the solid. 2. Pick point 1 in Figure 12-22A as the first axis point and point 2 as the second point. 3. Enter a value of –30 for the rotation angle. This rotates the top edge of the tapered end away from the solid. See Figure 12-22B. Copying Faces A mating part will now be created. This is done by fi rst copying the face on the tapered end of the part. 1. Using the Face Copy option, pick the angled face on the left end of the solid. 2. Pick one of the corners as a base point and copy the face one unit to the left. This face can now be used to create a new solid. See Figure 12-23A. 3. Draw a line four units in length on the negative X axis from the lower-right corner of the copied face. Use the EXTRUDE command on the copied face to create a new solid. Select the Path option and use the line as the extrusion path. See Figure 12-23B. If you do not use the Path option, the extrusion is projected perpen- dicular to the face. Point 2 Point 1 A B Figure 12-22. The tapered end of the object is modified by rotating the face. A—Pick the points shown. B—The resulting solid. A B Figure 12-23. Creating a mating part. A—The angled face is copied. B—The copied face is extruded into a solid.