SolidWorks 2011 Assemblies Bible - Matt Lombard [122]
3. Expand the Task Pane, found on the right side of the graphics window, and display the Design Library panel, which contains the Toolbox icon. Expand the ANSI Inch standard and the Bolts and Screws folder, and then click the Hex Head bolt, as shown on the left in Figure 14.18. Drag-and-drop the hex bolt into any hole. It snaps into place because of the Mate Reference that is used on the Toolbox part. Toolbox automatically sizes the bolt correctly. Click the green check mark icon when you are done, and then click the red X icon to finish placing bolts.
FIGURE 14.18
Select and place a fastener.
4. Add a flat washer and nut to the bolt, as shown in Figure 14.19. The washer is Plain Washer Type A, Preferred — Wide Flat Washer. The nut used is Hex Nut, Heavy Hex Nut.
FIGURE 14.19
Specifying the washer and nut
5. Right-click the bolt, either in the graphics window or in the FeatureManager, and select Edit Toolbox Definition, toward the bottom of the menu. Notice that the bolt is too short, as shown in Figure 14.20. Change the length of the fastener to 1.625 inches. You can make this change in the PropertyManager or by dragging the green arrow placed on the bolt in the graphics window if you are using Instant3D.
FIGURE 14.20
The bolt is too short.
Note
If you try to apply Smart Fasteners to the hole, you will notice that the fastener is placed incorrectly, and changing fastener types is not easy.
6. Create a Feature Driven component pattern (Insert⇒Component Pattern⇒Feature Driven) using the circular pattern of holes on either the Top or Base parts. Pattern the bolt, washer, and nut all in the same component pattern.
7. Zoom in on the sensor on the top of the assembly. There is a gray gasket between the orange sensor and the blue top parts. Click one of the flat ends of the sensor part and then click the Hole Series toolbar button, or choose Insert⇒Assembly Feature⇒Hole⇒Hole Series.
8. Make sure that you select the Place Fastener option on the final tab when you get there, as well as the Create New Hole option. This workflow is different from previous versions. Also, be aware that Toolbox may not respond for several seconds as you initiate these features.
9. Make three sketch points and use construction geometry and dimensions to locate the holes, as shown in Figure 14.21. The size and types of holes are determined in a later step. (This is the reverse of the normal Hole Wizard, where you first determine the type and size of hole, and then you establish the positions.)
FIGURE 14.21
The positions of holes in Step 9
10. Click the next PropertyManager tab to move to the First Part hole specification. Set it to a counterbored hole, for a #10 binding head screw, with a head clearance of .025 inch, as shown in Figure 14.22 in the image to the left. Click the next tab to advance to the Middle Parts hole sizing.
11. In the Middle Parts PropertyManager, make sure that the Auto size based on start hole option is selected, as shown in the middle image in Figure 14.22. This creates a normal fit clearance hole for the gasket part. Click the next tab to advance to the hole definition for the Last Part.
FIGURE 14.22
Sizing the holes
12. In the End Hole Specification panel, make sure that you select the Hole rather than the Tap option, and also select the Auto size based on start hole option. This is shown in the image on the right in Figure 14.22.
13. Proceed to the Smart Fasteners tab. Make sure the Place Fastener option is selected, along with the Auto size based on start hole option, as shown in Figure 14.23.
14. Add a washer and a nut to the bottom stack of the binding head screws. Using the Stack Components panel of the final tab of the Hole Series/Smart Fastener interface, add a washer and a nut to the bottom stack using the Bottom Stack selection box of the PropertyManager.
15. A dialog box appears, enabling you to add