Purpose

Computer Aided Design $($CAD$)$ is a necessary tool used in many disciplines of engineering to

communicate design ideas. CAD allows engineers to create accurate $2$D and $3$D

representations of physical objects and systems, which can be utilized throughout the design

process. This assignment will introduce you to basic part creation. By completing this

assignment, you will be able to:

$$ Use basic sketch tools $($line$,$ rectangle, circle$)$ to create a $2$D sketch $($SLO $2$a$)$

$$ Apply constraints and dimensions to fully define a $2$D sketch $($SLO $2$b$)$

$$ Use basic positive extrusions to create $3$D models $($SLO $2$c$)$

$$ Create accurate $3$D models from provided physical objects $($SLO $2$d$)$

This assignment will also help you become familiar with the basics of the Onshape software

platform and provide you an opportunity to practice measuring the dimensions of physical

components using dial calipers.

Task

If you have not yet done so$,$ create your Onshape account $($instructions are in in Prep G$01).$

Create a new folder in Onshape named Combination Lock Applications.

Then create a new document that you$$ll place in that folder called Combination Lock Parts.

We will continue to use this document for many of your application assignments this semester.

In the document, create two new Part Studio tabs and rename them as Deadbolt Restraint

Plate and Deadbolt Guide Rod.

Then, using the physical components and dial calipers available at your table, create accurate

parts of the Deadbolt Restraint Plate and the Deadbolt Guide Rod $($images of these parts are

shown below$).$ Set the material for the Deadbolt Restraint Plate to MDF and the Deadbolt

Guide Rod to Poplar. The units for both parts should be IPS $($inches$,$ pounds, seconds$).$