How to Make 2D Isometric Drawing in AutoCADFull description
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AutoCAD 2010 - Caderno de exercícios. Este caderno contém os exercícios da apostila de AutoCAD 2010.Descripción completa
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AutoCAD 2010 - Caderno de exercícios. Este caderno contém os exercícios da apostila de AutoCAD 2010.Full description
AutoCAD is a commercial computer-aided design (CAD) and drafting software application. Developed and marketed by Autodesk, AutoCAD was first released in December 1982.
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A comprehensive manual for AutoCAD 2D Drafting which I have prepared while working as AutoCAD Trainer at PENTASOFT, Nepal (2003 - 2006)
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Topics covered in this Lesson: Isometric drawing procedures LESSON LESSON 3-2 - ISOMETRIC I SOMETRIC DRAWING Using Isometric commands is one of the simplest ways to give a 3-D representation while using only 2-D commands. This has been the usual way of doing things before CAD allowed true 3-D work to be done. Many times an isometric drawing is used to compliment or give more information to a 3 view orthographic drawing. drawing . See the sample below.
You can see that it is a very simple drawing. This basic isometric drawing of the object gives a very good idea of what it looks like. If this is all that is needed then isometric works well. Unfortunately, as soon as you change anything, like the block's height, you'll need to redraw all four views. AutoCAD AutoC AD has has a command called ISOPLANE which allows you to easily draw at a 30 degree angle as needed for an isometric drawing. You can switch between the
three 'isoplanes' (top, right, left) by using this command or by pressing the F5 key.
Command: ISOPLANE Current isoplane: Right Enter isometric plane setting [Left/Top/Right] : T Current isoplane: Top By invoking this command, AutoCAD is now set to draw on the top isoplane. Your other choices would be Left or Right. Your first exercise will be to draw the object shown above using isometric methods. Exercise 1 - ISOMETRIC DRAWING Begin a new drawing using the acad.dwt template Create a layer called OBJECT and give it a green color. Make this your current layer. Type in DDRMODES to bring up the Drawing Aids dialog box. Make your settings the same as what you see below (just turn on Isometric Snap).
Press OK and you'll see that the grid is set up for isometric drawing for the left isoplane in 1/2" increments. Your crosshairs are now angled to show you which isoplane you are currently on and the Grid is laid out differently from what you may be used to.. Begin by drawing the left side of the box (shown at the top of the lesson) using the line command. Ignore the hole at this point. You will want to use the Direct Distance Entry System for this exercise and make sure that you have Ortho (F8) and Osnaps (F3) turned on. Switch to your right isoplane (F5) and draw the right side. Switch to your top isoplane (F5) and draw the top view. Create the angle lines to add the angled surface. Switch back to the left isoplane and start the ELLIPSE command. At the command prompt, press I for isocircle. This will allow you to create an ellipse at the correct angle based on the radius of the circle in the orthographic drawing. Use the Osnap to pick the correct center point. Save your drawing in your CAD folder. To dimension an isometric drawing, you have to do a few things first. Create a text style called Left, and give it a 30o obliquing angle, then create another called right with a -30o obliquing angle. Then create a new dimension style that has the text aligned with the dimension line. After you have placed a dimension, use the DIMEDIT command to change the obliquing angle of the dimension + or - 30 degrees. You may also need to use the properties to change the text in the dimension to left or right depending upon the orientation of the dimension. Keep in mind that this is still only 2D. Remember that in some instances, it may be quicker and easier to use this method rather than the more complex 3-D methods you'll be learning in the following lessons. View the video about Isometric Drawing.
Extra Practice: Copy this drawing using isometric drawing methods. Extra Practice: Copy this drawing using isometric drawing methods. If you want to add the hidden lines, jump ahead to Lesson 4-3 to learn about linetypes. Even More Practice: Try to reproduce these draw ings. (Also keep this link in mind when are looking for practice in 3D techniques.) L ik e
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RETURN TO THE TOP OF THE LESSON | RETURN TO THE TABLE OF CONTENTS CONTINUE TO THE NEXT LESSON - 3-3 > Take the quiz for this lesson