Parametric Modeling II s1

Parametric Modeling II Project #3

Objective: The student will create a three-dimensional object of an assigned project using the SWEEP command.

Assignment: Construct a three-dimensional model of a plastic coat hanger.

Add the following iProperties for all parts and drawings: Summary tab Author: (your name) Project tab Part number: (part name) Description: (part name) Project: (PROJECT 3) Designer: (your name) Engineer: (your name) Physical tab Material: (assign material)

Preliminary Sketch (reverse engineering)  Obtain a plastic coat hanger to use for the project.  Make a paper sketch of the shape of the plastic coat hanger by tracing the shape.  Using a straight edge add the center lines to the straight sections.  Using a circle template add the circular center lines to the curved sections to locate the centers.  Measure the center lines of the straight and curved sections and place the dimensions on the sketch. The key dimensions are the center-to-center of the curved sections.

Inventor Part Model  Load the Inventor software and begin a new part (Standard (in)ipt.). Make visible the three work planes, three work axes, and the center point and select the XY-Plane as the sketch plane.

 Use the Project Geometry option in the 2-D Sketch Panel to project the three planes, the X-axis, the Y-axis, the Z-axis, and the origin onto the sketch plane.

 In the graphics window area create a rough sketch of the shape of the hanger using the 2D Sketch Panel with the origin (0,0,0) at the beginning of the open hook.

 Using the dimensions taken from the plastic coat hanger sketch, add the center-to-center dimensions and the radius dimensions to the two-dimensional sketch to constrain the sketch.

 Set the View to Isometric and finish the sketch.

 Begin a new sketch and select the XZ plane as the sketch plane. Use the projected Geometry option and project the path to the new sketch plane. Construct the cross-section of the shape of the hanger on the new sketch plane.

 Use the SWEEP tool in the Parts Features panel; select the planar profile and the 2D path to finish the model.

 Add the color of the hanger to the model using the Materials drop down menu. Save the finished model.

1 Parametric Modeling II Project #3

Drawing  Complete a fully annotated drawing of the coat hanger. Show the front view of the coat hanger using a scale of 1” = 1”.  Add centerlines to the coat hanger to all curved sections and straight sections.  Add all center-to-center dimensions and dimensions for all curved sections. Apply the dimensions to the centerlines, not the object.  Add a partial section view through one of the straight sections to show the shape of the coat hanger and dimension the diameter.  Add a second front view (orthographic view) of the coat hanger displaying the color of the hanger. Use a smaller scale for the second view.

Evaluation: Refer to the PROJECT EVALUATION handout for the required items to be turned in for evaluation.

 Project Assignment Sheet(s) including all drawings  Inventor part file (ipt)  Inventor drawing file (idw)  Sketch of the coat hanger including all dimensions  Hard copy (finished plot) of the assignment  The part model and drawing file copied to the designated grading folder

NAME: File Name: