3d-sculpting5

Inventor 11 TUTORIAL 10

Why 3D? Learning Objectives After completing this tutorial, you will be able to:

• Demonstrate advantages of 3D design for even “simple” parts. Required Competencies Before starting this tutorial, you should have been able to:

• Create Inventor sketches • Use the Loft command • Use the Split command

Some parts that are trivial to draw with traditional 2D orthographic projection methods can turn out to be quite difficult to manufacture as designed. The process of creating a virtual 3D model can reveal some of the problems that might be encountered in manufacturing. This tutorial assumes that the user is completely familiar with creating precise 2D sketches of arcs, lines, polylines, and splines in any location as well as the 3D tools from previous releases.

Drill Bushing

Why 3D?

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1. Open the Drill Bushing.ipt file. Make Sketch1 & 2 visible.

Figure 1

2. Extrude Sketch2 mid plane the d1 distance from Sketch1.

Figure 2

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3. Extrude Sketch1 To Next. Turn off the visibility of the surface.

Figure 3

4. Make Sketch3 visible. Split the top face with the larger circle.

Figure 4

Why 3D?

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5. Share Sketch3. Start the Loft command and carefully select Sketch3 and then click in the smaller circle.

Figure 5

6. Click to add in the Sections window and then click the split face.

Figure 6

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7. Extrude cut through all the smaller circle. Turn off the visibility of Sketch3.

Figure 7

8. Add a 1mm chamfer to the bottom edges.

Figure 8

Why 3D?

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9. Save the file and create a dimensioned drawing.

Figure 9

In the previous tutorials we saw examples of complex freeform parts that would be nearly impossible to document with traditional 2D orthographic views alone. Turns out that this part based on a trivial 2D drawing might be expensive to manufacture, thus 3D has significant value in correctly documenting (or uncovering expensive design considerations) of even “simple” parts.

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Turn static files into dynamic content formats.

Create a flipbook