Background
This could mean drawing 3 separate designs of 3 different unique chairs. You could also create a design of a chair, a dresser and a table. You could also design two different and unique nightstands as well as two different and unique chairs... The choice is yours.
Eventually, we'll scan all of these designs you create and import them into your design folder document. Afterward, you'll be tasked with comparing each of your designs against the design specification you chose and eventually use those comparisons to pick and justify a design winner (that you will later actually build.)
Today, I want to give you some instruction into different design styles and get you practicing on using these design styles as eventually, you'll need to pick a style to use when drawing your furniture designs. So... here we go!
Introduction to Engineered Drawing
When drawing anything (including furniture), drawings tend to fall into two major categories: engineered drawings and artistic drawings. While both types of drawings do share some similarities they both create pictures, the purpose of artistic drawing is generally to share emotion and point-of-view, whereas engineering drawing is done to convey information. While anyone can enjoy artistic drawing and what it represents to them, it takes some specific knowledge and training to understand and create engineered drawings.If you haven't noticed, this isn't art class... it's design technology... and it's time you began to learn how to draw like a designer and engineer.
There are lots of different ways to draw like an engineer to convey specific types of information (Orthographic projection, Auxiliary Projection, Isometric Projection, Oblique Projection, Perspective, Exploded Drawings, Section Drawings, Scale, etc. ) Today we'll learn about and practice the two most common and basic versions, Orthographic and Isometric.
Take the following shape for example:
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| Thanks to Vector Tuts Plus for the use of this image! |
In this shape above, you're seeing both the Orthographic version of the object (that's the three images on the left) and the Isometric view of the object on the right. Both graphic renderings are showing the same thing but communicating different information.
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| Is this 1st or 3rd angle projection? |
Isometric projections show any 2D (orthographic) object as 3D by rotating it horizontally by 45 degrees and adjusting it vertically downward by another 35 degrees. Most objects are shown from an isometric projection to help the view get a sense of what the dimensions of the object are in relation to it's size and scale. Isometric projections require strict adherence to parallel lines in order for the image to be accurate.
Here are two videos that I would like you to watch that show someone drawing either an orthographic projection of an object or an isometric projection of an object. Please fill out the questions below after watching each video and submit your answers when you're done.
Activity One: Do you know your Orthographic and Isometric Projections?
How to Draw an Orthographic Projection of a 3D Object
Please answer the following 6 questions while watching the video. Be sure to scroll down so that you can see them all. You'll need to be logged into your LJA Google account for this to work..
How to Draw an Isometric Projection of a Table
Activity 2: Engineered Drawing Practice
Orthographic
Now that you know what an Orthographic and Isometric projection look like, lets see if you can create your own. You're going to need a sheet of paper, a pencil and a ruler if you can get hold of one. Below you'll find the first shape, it's an isometric object shown in 3D. Your task on your paper is to re-draw the isometric object as an Orthographic projection in both 1st angle and 3rd angle projections. Be sure to label your drawings with the correct elevation names so that I can distinguish if you've done this correctly. Here's the shape I want you to re-create:
Isometric
Just like the last drawing, I would like you now to practice your isometric projection skills by drawing out the following isometric image based on the orthographic projections you're given. Be sure to put it on the same sheet of paper and label for me the dimension of the sides, similar to what I've done above.
Activity 3: Putting our Practice to Work
Please watch the following video that will show you how to draw a chair in Planometric form. Planometric is a version of Isometric projections. Just pretend she says Isometric every time she says Planometric. When you're done, I want you to flip your paper over and draw a simple, basic chair in an Isometric projection. Remember, parallel lines are key!
Now that you have a wonderfully great chair, I'd like you to start converting the Isometric drawing you've created into a 1st angle Orthographic projection. Be sure to label each of the elevations or plan you illustrate.
Out of Classwork:
How can we transfer this knowledge into our unit? As described before, we'll need to start coining up with 3 unique designs for the design phase of our design folders. When drawing or sketching out your designs you should be ale to use both the Orthographic and Isometric projections to communicate your ideas in a professional manner. Remember, it's up to you to determine what types of unique furniture pieces you would like to design for your environment and your designs should be affected and driven by your chosen design specifications If you have any questions on this, please let me know sooner than later. Either email me, or leave your questions in the comment section of this page.
Finally, be sure to not lose these drawings you've created. You'll need to bring them with you to class next time so we can get them all scanned into our archive. That means, put this in your design tech parking lot folder in your binder (before walking out the door today). I won't see you till next week so have a great weekend and good luck with your designs.
Thanks Mr.Connors!
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