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ENGR102Project3F2019.docx

ENGR 102-INTRODUCTION TO CAD

Project 3: Three Dimensional Conceptualization, assembly drawings and BOM

Objective

The objective of Project 3 is to make a three dimensional puzzle in SolidWorks as a way to practice conceptualization of an idea, to conceptualize how each piece fits in the puzzle, to assemble the puzzle together.

Introduction

In this project you must design a three dimensional puzzle that when assembled, becomes a cube of six inches on a side. Each piece of the puzzle must be manufactured to ±0.1 inch tolerance. The pieces must fit together as a solid, that is, with no internal empty spaces. You will be free to make the pieces fit together any way you choose, but there should be at least six pieces. No two pieces should be the same, and only one piece can be of simple geometry such as a square or sphere. All sharp edges will have a fillet.

The above figure shows an example.

HINT:

Consider sketching pieces first on paper before rendering them in SolidWorks. Sketch pieces one at a time, with a left view, top view, and front view to help aid your visual concept of what the 3_D image will look like. Assemble each piece as you construct them, to look for errors. As you assemble a piece, sketch out the next pieces. Assemble using “collision detection” to help look for errors.

You will need drawings of each part, drawing of the assembled puzzle including exploded view, and a complete Bill of Materials (BOM) including balloons indicating parts, materials selected, and an estimated cost per pat. You must specify material used for each part.

FOR THIS PROJECT YOU MUST WORK IN TEAMS OF TWO. Your partner will be assigned to you. A report is due with the project submission. The report template can be found posted on the Canvas site for the course.

For your report, you must include the following:

1. What questions did you ask for Design intent of your puzzle?

2. What does the puzzle have to do? Why are you doing it? (One sentence).

3. What manufacturing processes are you planning on using?

4. What symmetry does it have? Does this help with the manufacturing of the puzzle?

5. What are it’s primary functional features?

6. How do the parts fit together? Are they easy to access? Does it need any fasteners?

EXTRA CREDIT:

Make something besides a cube, such as a sphere or a star (worth 10%).

MAKE SURE YOU USE “PACK AND GO” TO COPY THE ASSEMBLY INTO THE SHARED DRIVE, ALONG WITH DRAWINGS.

PROJECT IS DUE BY 5:00 PM ON THE DATE INDICATED BY THE INSTRUCTOR. NO LATE WORK WILL BE ACCEPTED