Solid Modeling and Design – S14

Solid Modeling and Design is a sophomore level design class which also introduces students to the basics of CAD through the SolidWorks program.

This course will involve an individual design project and design report. Although the final result will be a CAD model only, the documentation should be sufficient to build the actual design.

Office Hours: TR, 9-10:30, please call ahead (569-8071) to verify that I’m in my office.

Final Exam, Friday, May 9, 8-10, EIT 224
If Vmware is down, we will shift to ETAS 380.

20T Gear Stock

60T Gear Stock

CAD Project Description (addendum … the mounting points are at the corners of a 3″ x 3″ rectangle) The 15″ from front of robot to mounting points is to the center of the rectangle.
CAD project grading: style & grammar (10 points), video (10 points), graphs (15 points), content (65 points)

Reading and Homework

1. Read chapters 1, 2, 3.  Sketch 3.9 & 3.10. Assigned:1/27/14, Due: 2/3/14

Chapters 1 & 3 provide useful engineering that is good for any engineer to get started on.  However, we will not be lecturing or testing this material.
Chapter 2 contains information of general interest in drawings as well as information pertinent to hand-drawing of engineering drawings.  You do not need to worry about the hand-drawing information.

2. Read chapter 5.  Redo template including six things which are unique to your template relative to the default template (your name is 1).  Include graphics, notes, relocate items so that they appear in different locations.  Exercise 4.55 (use a thickness of 20 mm) & 4.56 from the book.  Make a solid model & create an engineering drawing.  Assigned: Feb. 3, Due: Feb. 10.

3. Create a solid model for exercise 5.11 & 5.12. Use this solid model to prepare an engineering drawing with 3 orthographic views. Assigned: Feb. 10, Due: Feb. 17.

4. Reading Chapter 11. This will take about 3 weeks to cover.

5. Reading Chapter 12. This will take a couple of lectures.  We should be doing the second week after Spring Break.

Graded Problems
Assembly Drawings Assigned: 3/17/14, Due: 3/31/14

Video Tutorials
The lab instructions will follow video tutorial format.
Lab 1.
Setting up Solidworks Templates
Modifying Templates
Making your own custom drawing template
Hand in the template!

Lab 2.
Making your first part
Fillets & Drills
Extruded Cuts
Extruded Cut Drawing
Hand in the link drawing!

Lab 3.
First Assembly
Using Sub-Assemblies
More Sub-Assemblies
Finishing Up
Exploded Views

Hand in drawing of the BearingBlock and an assembly drawing showing an exploded view of the frame and bill of materials.
Also, hand in a drawing of smalllink and link spacer.

Lab 4.
Equations and when to use them
Starting Equations
Finishing Equations
Adding mounting strap to Frame
Adding Center Lines on Drawings

Turn in a drawing of mounting strap.

Lab 5. Mechanisms
Bearing Container
Bearing Package
Getting Models from the Interweb
Assembly of Suspension

Lab 6. FEM Integration
Deflection in a Leaf Spring
Completing the Leaf Spring
stresses in gear teeth

Turn in an engineering drawing of the leaf spring long & leaf spring. Turn in a print out of the stress in a gear tooth.

Lab 7 and 8. Tutorials

To all … apparently the microphone was not turned on when Tutorials was generated. I will give written instructions on what tutorials to do as soon as I get back to my office.

Go to “Help” … the question mark in the upper right corner of the screen. This will open a drop down menu.

Go to “Solidworks Tutorials”

1. Click on “Introduction to Solidworks”

Read and do the steps on the page then click on “My first part” under NEXT TOPIC.

This tutorial will help you understand circular features.

2. Return to “Solidworks Tutorials” and click on “Basic Techniques.”
Do “Revolves and Sweeps” and “Lofts”

3. Return to “Solidworks Tutorials” and click on “Advanced Techniques”
Do “3D sketching” and “Advanced Drawings”

Due two weeks from now … print out the two drawings from “Advanced Drawings.”

For some reason, the script to access the Advanced Drawings slddrw file is broken. You have to use the “open file” option and navigate to C:\Program Files\SolidWorks Corp\SolidWorks\samples\tutorial\advdrawings\foodprocessor.slddrw.

Lab 9. No lab this week.  I’ve acquiesced to the inevitable.

Lab 10. get started on CAD Project (no deliverable)

Lab 11. continue CAD Project (no deliverable)

Lab 12. Completing Suspension Motion Study
Adding a force to an assembly and plotting results
Export velocity and acceleration from Solidworks to Excel and provide a print out.
Making more realistic simulations by adding springs, dashpots, and verifying forces.

Lab 13. Four bar linkage … step 1
Four bar linkage … step 2
Four bar linkage … step 3
Four bar linkage … step 4
Four bar linkage … step 5

Geneva mechanism … step 1
Geneva mechanism … step 2
Geneva mechanism … step 3

These videos should give you enough of what you need to know to finish your CAD project. There is no deliverable and you may take as long as you need to complete them.

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