1) Open Inventor 11 by double clicking the Icon on your desktop, and a dialogue box opens up, similar to the one shown below.
Figure 1.
2) Click "Projects" icon from the list as shown in Figure 2.
Figure 2.
3) Click "New" icon as shown in Figure 3.
Figure 3.
4) When "Inventor Project Wizard" dialog box appears select "New Single User Project" radio button and click next as shown in Figure 4.
Figure 4.
5) Now let us name the project as "Core Rod Extensions" and save the file in a location as per our convenience, as shown in Figure 5.
Figure 5.
6) Now select libraries and click finish button as shown in Figure 6.
Figure 6.
7) Now select "Core Rod Extensions" as default project, as shown Figure 7.
Figure 7.
8) Now click "New" icon and select "Standard.ipt" icon from "Default" tab in "New File - Choose a template to create a new file" dialogue box as shown in Figure 8.
Figure 8.
9) When the project opens select "Project Geometry" from panel bar and select drawing area as shown in Figure 9.
Figure 9.
10) Draw a sketch as shown in figure 10.
Figure 10.
11) Now create chamfer of 0.03X45 deg as shown in Figure 11.
Figure 11.
12) Now add constraint to the sketch with general dimension and then edit the dimensions as shown in Figure 12 and click "Return" button in the toolbar as shown in Figure 13.
Figure 12.
Figure 13.
13) Then select "Isometric view" by pressing F6 button in the keyboard, and the view would change and would appear as shown in Figure 14.
Figure 14.
14) Now select "Revovle" tool by clicking the icon from "Part Features" panel as shown in Figure 15.
Figure 15.
15) Now pick the axis and set the revolve to full and click ok as shown in Figure 16.
Figure 16.
16) The resultant part would be as shown in Figure 17.
Figure 17.
17) Now let us click on bottom side of the core rod extension as we are now going to create a sketch on it as shown in Figure 18.
Figure 18.
18) As shown in Figure 19 add a circle and centerline and set the diameter of the circle to 2.25 inch as shown in.
Figure 19.
19) Now create one more circle on the circumference of the circle with dimensions as shown in Figure 20.
Figure 20.
20) Now select "Extrude" tool from "Part Features" panel as shown in Figure 21.
Figure 21.
21) When "Extrude" dialog box appears enter the parameters as shown in Figure 22.
Figure 22.
22) After creating "Extrude" cut let us create thread in the hole. Let us select "Thread" tool from "Part Features" panel as shown in Figure 23.
Figure 23.
23) When "Thread" tool dialog box appears, under "Specifications" tab select "ANSI Unified Screw Threads" as "Thread Type" and set the parameters for "Size", "Designation" and "Class" as shown in Figure 24 and click ok.
Figure 24.
24) Now let us select "Circular Pattern" tool from "Part Features" panel as shown in Figure 25.
Figure 25.
25) When "Circular Pattern" dialog box appears select X axis as the direction of "Circular Pattern" and select "Extrusion Cut" and "Thread" as the feature which is to be patterned as shown in Figure 26. Now enter the parameters "Placement" as shown in Figure 27. Before clicking ok you see the preview which would be displayed on the model as shown in Figure 28. If you feel everything is fine then click OK.
Figure 26.
Figure 27.
Figure 28.
26) Now let us create threaded hole on other side of the core rod extension. Let us create a working plane on the other side of the rod by selecting "Offset Working Plane" icon as shown in Figure 29.
Figure 29.
27) When "Offset" dialog box appears enter "17" as the value for the distance of offset as shown in Figure 30.
Figure 30.
28) Now let us select "Hole" tool from "Part Features" panel as shown in Figure 31.
Figure 31.
29) When "Hole" dialog box appears enter the parameters as shown in Figure 32 and the preview of the hole would be as shown in Figure 33.
Figure 32.
Figure 33.
30) The resultant "Core Rod Extension" part would be as shown in Figure 34.
Figure 34.
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