AUTOCAD R14 TUTORIAL PDF

Remember the disclaimer I threw out last time? Continuing on our path down the Bonus pulldown menus takes us to the Modify Cascading menu. Most of the commands in this menu can be found in the Standard Bonus Toolbar. This nice feature includes text, mtext and attribute definitions!

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Once you have downloaded this drawing file, move it to a project folder of your creation and open the file with AutoCAD. The drawing you have just opened represents three axial planes XY-plane, XZ-plane and YZ-plane though two of these planes are not currently obvious due to the fact that we are looking directly down on to the XY-plane; also know as the World plane.

Notice the icon in the lower left corner; the "W" stands for World plane. Since our monitors are flat and 3D objects are not, we need to be able to see our 3D models from different angles simultaneously in order to visualize our models better in our minds.

To break your screen area up into "Tiled Viewports", select the View pull-down menu and go to Tiled Viewports. Now that the screen area has been divided into four separate Viewports, we can set each one to display the drawing from unique vantage points. Pick on the middle left Viewport, anywhere inside of it, and make it active. Only one Viewport can be active at one time and usually the active Viewport has a bold or highlighted frame around it.

On the View pull-down menu select the 3D Viewpoint fly-out menu and pick on Front. The middle left Viewport should now reveal a blue grid that is titled XZ-plane. Pick on the lower left Viewport and make it active. Repeat the previous step by going to the View pull-down to 3D Viewpoints and then select Right.

The lower left Viewport should now reveal a yellow grid that is titled YZ-plane. Pick on the main Viewport Right and make it active. The end result should look like the image to the right. Each Viewport can be adjusted with the Pan and Zoom commands. I typically activate each Viewport one-by-one and perform a Zoom Extents. Draw a several lines by selecting at different point on the 3 uniquely colored grids and observe how the lines look in the 3 left-hand Viewports.

If you LIST one of these lines, you should see some new information as well as non-zero numbers in places where there are normally zeroes. Though our technological innovations are working towards a purely 3D modeling CAD environment, most of the work done today is 2D based. This means that a great deal of 3D work is derived from 2D drawings. Using Pline , draw on the Red Grid a rectilinear form like an imaginary building in plan view. On another part of the Red Grid, draw a regular Circle.

Now reset the Viewport back to SE Isometric. This can be achieved by going through the pull-down menu, as described previously, or simply by performing a Zoom Previous. To change these two objects so that they project into the Z-axis or in other words, along the XZ and YZ planes , we need to provide them with a property called Thickness. From the Modify pull-down select Properties and then select both the circle and the polygon we just created. If you find that the objects are difficult to select, it is probably because of the Red Grid.

You can use Window or Crossing to select with; the Red Grid is locked and will therefore not be affected. On the Properties dialogue box, notice the term " Thickness :" Type in a value of " 5 " for 5 units of height.

Since AutoCAD is primarily a vector based CAD program, 3D objects are displayed as numerous lines in space and this is why the term "Wireframe" is used to describe how they are displayed. This should not be confused with what is called Wireframe construction, which suggests that the 3D objects are actually only made up of lines that represent edges. These objects, on your screen, are truly 3D and only displayed in Wireframe mode.

By activating each viewport, one-at-a-time, you can use Hide on all of them individually. Notice that the cylinder appears solid or capped and the polygon appears hollow and the edges are paper thin. From the View pull-down select Shade and Color. Depending on your hardware, monitor and personal settings, you may experience unique results. The results may be impressive or poor depending on your hardware, monitor and personal settings but you should see the Grids disappear leaving only 3D objects and text.

The 3D objects should look solid, smooth and dark on one side. Since we have not created a light source or a light intensity, the default values may not be very impressive. Rendering will be covered later in this series. To reset the display back to normal Wireframe display, select Regen from the View pull-down menu.

Make sure Osnap is Off. Provide a Width of " 3 ", a Length of " 3 ", a Height of " 10 " and a Rotation angle about Z axis of " 0 ". Note: If Osnap is on while typing points in space, like "10" for the height of our column, your cursor could catch a snap point on one of the 3 grids and create something quite different than expected. Select Hide from the View pull-down menu and you should notice that the new 3D object has a top unlike the polygon object we created earlier.

Select Pyramid and Type " 0,0,0 " for the First base point: Move the Cross-hairs the cursor towards the positive X-direction and Type " 3 ". Move the Cross-hairs towards the positive Y-direction and Type " 3 ". Move the Cross-hairs towards the negative X-direction and Type " 3 ". Now Type " 1.

Use the Move command to move this Pyramid to the top of the column we create in Step 6. Remember that you are now working in 3D space and the only way to be certain about positions points in 3D space is to Type in coordinates or use Object Snaps. In the middle left and lower left Viewports, the icon is displayed as a broken pencil inside a square. This is done to indicate that the current vantage point in that particular Viewport is out of alignment with the current UCS setting.

This is analogous to having a pencil perpendicular to a table while looking across the surface and directly at the wall behind the table.

If you List this object or attempt to modify it with Properties you will notice its unique characteristics. If you explode this object, it will become 6 unique objects called 3D Faces. In this state, you can actually erase or uniquely stretch a single side.

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AutoCAD R14 Bonus Tools, Part 3

Today I will be showing you how to model an object in Autocad This is a beginners tutorial and no prior knowledge is required. I am 14 and am using the free educational version of Autocad. Have fun and I hope you enjoy. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson.

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