3D MODEL 1SHAFT SUPPORT 1Aim : To model the given Shaft Support model (Fig. 1) using a 3D modeling software.Software used : Autodesk Inventor 11.Tools/Features used : 2D: Line, Circle, Point, General Dimension, Project Geometry.3D: Extrude, Hole.Procedure :1. Open Autodesk Inventor & select Standard (mm).ipt from the New model menu in the Main Menu. By default, the Sketch-1 comes in the XY plane.2. Using the 2D sketch tools, draw the front view (cross section in this case) of the base as shown in Fig. 2.3. After completing the sketch, click Finish sketch or Return to come to the modeling environment.4. Select Extrude (E) from the modeling toolbar. Sketch-1 is selected automatically by the software. If not, click on any line or curve in the sketch to select the sketch. If for some reason the sketch is not being active for modeling, there is some error in the 2D sketch and it should be repaired before further modeling.5. Select the Symmetric option in the Extrude dialog box and enter 75 mm for the extrusion distance and click OK. Modeling of the basic feature is complete.6. Expand the Origin folder in the Model Browser (tree menu) and select XY plane. The XY plane is highlighted. Create 2D sketch (Sketch-2) of the inclined rib-like structure as shown in Fig. 3.7. Exit the sketch by hitting Return and extrude to 12 mm symmetrically as done in step 5.8. Select the top flat surface of the rib-like feature by clicking on it & create a new 2D sketch (Sketch-3). Draw 2 concentric circles as shown in Fig. 4.9. Extrude cut the Sketch-3 to the total depth by either selecting the Distance option or the Through All option.10. Now select the Extrude option and reselect Sketch-3. Select the Distance option and enter 25 mm for the extrusion distance.11. Select the top flat plane of the base and create another 2D sketch (Sketch-4).12. Create 2 points using Point tool in the 2D sketch toolbox and locate them as hole circle centres by dimensioning as shown in Fig. 1.13. Exit the sketch and select the Hole (H) tool. Select the Sketch-4 (if not selected automatically) and input a hole diameter of 12 mm; hole depth of 18 mm or 12 mm with flat bottom. Set the model to Isometric View by pressing F6 in the keyboard.Result : The 3D modeling of the given Shaft Support is completed successfully.Inference :