Unit+07

= Orthographic / Isometric projection and Scale =

=== Orthographic and Isometric projections are important methods of representing a three dimensional object on a two dimensional surface. They can exist in a freehand sketch style (like the example above) or in more formal scaled and measured drawings. They are key components for representing the ideas of the architect to the client, builder, and others involved in the design process. ===

**Activity 1 - Basic Orthographic projection ( teacher led activity)**
Watch the demonstration of orthographic projection drawing. In your sketchbook and using the object provided: measure all of the dimensions of the object in a ** SCALE ** of 1:1 (1" = 1") Create a ** free hand ** orthographic sketch making sure to place your views in the proper relationship on the page. Scan and upload to your e-portfolio
 * Step 1 **
 * Step 2 **

**Activity 2- Basic Isometric projection ( teacher led activity)**
Watch the demonstration of isometric drawing IN YOUR SKETCHBOOK using the object provided freehand draw the object in an isometric view Scan and upload to your e-portfolio
 * Step 1 **
 * Step 2 **

** WHAT IS A SCALE? ** ** A SCALE IS THE RATIO BETWEEN THE LINEAR SIZE OF THE DRAWING TO THE ACTUAL OBJECT BEING DRAWN. MORE GENERALLY IT IS THE SIZE RELATIONSHIP BETWEEN ONE THING AND ANOTHER. YOU WILL LEARN MORE ABOUT THE DIFFERENT SCALES IN THE ACTIVITIES BELOW. **

**Activity 3 - Architect's Scale and 3d modeling in google sketch up** Click on the link below and watch the video on reading an architect's scale rule. Reading the Architects scale rule.
 * Step 1 **
 * AN IMPORTANT NOTE: IN THE VIDEO THE METHOD FOR NOTING DIMENSIONS IS NOT THE FORM GENERALLY USED IN ARCHITECTURAL**
 * DRAWING. IN OUR PROJECTS WE WILL ALWAYS NOTE OUR DIMENSIONS IN FEET AND INCHES FOR EXAMPLE: 1'-6"**

=** PROJECT **=


 * This project focuses on the concept of scale and scale drawing it will consist of three models in a single sketch up document drawn at three different scales. **

Using the architect's scale ruler and the object that you used for the previous activities, in google sketch up you will create three separate models at the different scales. The scales you will use are: 1" = 1'-0", 3/4" = 1'-0" and 3/8" = 1'-0". When you complete your drawing take a screen shot and post to your e-portfolio. It should look something like this.
 * Part 1 Creating a model in three different scales in Sketch Up **



**Part 2 Creating orthographic drawings in Layout.**



Step 1 Create a new file. Copy your model of the woodblock at the scale of 1"= 1'-0". Set your style to the black line white background hidden line style in the style menu ( look in default styles to find it). Step 2 Create scenes in Sketch Up: Front, top, back, right side, left side and section through the circle. The example above is your guide but is missing the left side view Step 3 Save your model then export it to Layout (File> send to Layout) Step 4 Open your e-mail and download the page template in Layout. Save it as a template on your computer.Change the basic information to reflect your project: Name, Date, Scale, title of Project etc. Step 5 Create a set of orthographic drawings on a single sheet ( use the example above as a guide) Please note that you should properly dimension and label your drawing. Take a screen shot and post to your e-portfolio. Step 6 Print a copy of your drawing on the the lab printer and hand in to me.

**Alternate Project - Gawlick Room** In this project you will build on your skills and knowledge of orthographic projection and scale.

Step1 Using a tape measure (not an architect's scale) you and a partner will record the real dimensions of the interior of the Gawlick room. The Gawlick room is at the end of the hall on the west end of the building. You must include all of the permanent dimensions of the room including any door or window openings and any other built in or attached features. Include the length width and height of the walls. You do not have to include the ceiling or anything attached to it. Your dimensions must be accurate to within a 1/2". Record this information in your sketchbook (use small freehand diagrams see the image below) or on piece of graph paper, so that you can use it in the next step. Photograph this document and post to your e-portfolio



Step 2

Watch and follow along with the tutorial Beginning Sketch up tutorial #2

Step 3 Using the same information you have previously gathered you will create a 3D model of the Gawlick Room in google sketch up.

Step 4 Export your model to Layout and create a document showing a ground plan and two sections of the room.

Step 5 After you have finished your model, rotate around your model and select three different views. Take screen shots of all three views and post to your e-portfolio.

=**Assessment checklist.**=
 * Please make sure that you have all of the required items posted and properly labeled in your e-portfolio**

**Activity 3 - Reading the Architect's Scale - hand in worksheet** **PROJECT- Part -1 3d model of wood block in 3 different scales in google sketch up** **Part -2 Orthographic projection drawings of wood block in Layout**
 * Activity 1 - Basic Orthographic projection drawing of wood block hand drawn in sketchbook and hand drafted on paper - post to portfolio **
 * Activity 2- Basic Isometric projection drawing of wood block - hand drawn in sketchbook -post to portfolio **