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Getting Started in ProE

Getting Started in ProE - Getting Started Solutions to...

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FIGURE – 1 Conceptual Sketch Getting Started: Solutions to engineering design problems generally begin with a conceptual design phase , followed by a detailed design phase . When the problem is designing a part, in the beginning we are usually more interested in the features required to meet our functional requirements than in the exact dimensions the part will inherit during its manufacture. Often we might start out with a simple hand sketch. Consider the sketch to the left. This is a simple system to support a small overhead crane, perhaps in a garage. Note that other than the description of the 2x8 beam size the sketch is dimensionless. It is just a quick conceptual sketch of how a task, supporting the rope pulley, might be accomplished. Although the sketch does not contain the information required to manufacture the bracket, it does contain the features the part will require in order to function as designed. These features include a base to support the bracket to the beam, holes to insert fasteners through the base into the beam, a column of sufficient length to separate the pulley from the beam, and holes to support the axle parallel to the beam. Prior to the development of the Feature-based, Parametric solid modeling packages, we would want to gather more information before beginning to create a model with CAD, because as soon as we lay down one end of a line, we need a length in order to complete it. Since we don’t have all of our dimensions, this could be a problem. Of course, we could make up approximate dimensions and modify the drawing later, but this could be time consuming. With our feature-based system, we can worry about size after the shape has been determined. Let’s see how it works. Open Pro-E Wildfire 4.0 and set you working directory to MAE_184/classwork . In the main menu, select File>New (or the New icon) and the New window will open. Be sure that Part and Solid are selected under the Typ e and Sub-type headings. Name the part Pulley_Bracket_XXX, where XXX are your initials (see Figure 2). Click OK on the New window to close it. In the graphics window, note the outlines indicating three orthogonal planes representing the three standard drawing views (FRONT, TOP, and RIGHT). Also note the same planes indicated in the model tree to the left. You can select a plane either by clicking on its outline in the graphics window or by clicking on its name in the model tree. We will be creating a sketch on the FRONT plane, so select that plane, then select the Sketch Tool icon. A sketching plane (FRONT) will open in the graphics window. Also the SKETCH window will open. Click Sketch to accept the sketch plane.
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Figure 2 There are as many ways to create the bracket model as there are students in the class.
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Getting Started in ProE - Getting Started Solutions to...

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