Advanced AutoCAD 2D

Lesson20 – Using Object Snaps Osnaps Effectively

When you use object snap overrides to supply points that relate to existing objects, they are in effect only for your next point. you can type abbreviations of desired osnap overrides at the keyboard (the abbreviations are shown by each button below). you can also press & hold <shift> and then right-click in the drawing area to select an osnap override from a shortcut menu. or you can use an osnap button from the Object Snap toolbar & from Read More...

Lesson19- Using Snap & Grid In Isometric Sketches

You can turn On the GRID in the status bar to see an array of dots on your screen at a fixed spacing in the X and Y directions. use the GRID as a visual frame of reference (these dots in your GRID will not appear when you Plot). the GRID is displayed ONLY in the drawing Limits area. you may not see the GRID when you are zoomed out if the space between each dot is too small Read More...

Lesson18 – Clipping Images

You can use Imageclip to clip Images in the same way you can use other utilities to clip Xrefs & Viewports (in layouts) except you cannot use an existing LWPOLYLINE object to define new clipping boundaries for images. The default option of Imageclip is New which lets you define a new Rectangular or Polygonal clipping boundary. use the ON or OFF options to toggle clipping on or off for a selected image. use the Delete option to delete an existing Read More...

Lesson17- Managing Image Paths

Image objects are like Xrefs because they will not display in a drawing unless AutoCAD can load the associated external files. however, unlike Xref drawing files, an Image file can never be permanently bound inside a host drawing file. if AutoCAD does not find an image file, the image object(s) in the drawing is replaced by the image file name as a text label. You have the option of selecting Retain Path when you attach a new Image file to Read More...

Lesson16 – Adjusting Images In AutoCAD

One way to adjust image quality in AutoCAD is to change the Imagequality setting for all images in the current drawing. Use a draft quality to make images display quickly and use a high quality for optimum display quality. Command: IMAGEQUALITY ↵ Enter image quality setting [High/Draft] <High>: D ↵ Command: AutoCAD will always Plot using a high quality regardless of the current setting for Imagequality. so if you are not concerned about the quality of images on screen you can improve performance by Read More...

Lesson15 – Transparency & Display Order

While display order is normally not an issue for most AutoCAD objects, it can be very important when you work with images. for example, the background in a raster image could block out parts of a vector drawing if the image is above the vector objects. Younger objects normally display & Plot on top of older objects but you can use the Draworder command to change this display order. the four self-explanatory options are described for the pulldown menu illustration Read More...

Lesson14 – Aligning Images To Drawings

When you combine raster and vector data in a single drawing you must set the image insertion parameters appropriately. it may be difficult to know the required parameters before you actually insert the image into the current drawing but you can insert an image with default parameters & then use Move, Scale & Rotate commands to align images to vectors. An effective way to align images with drawings is to use the Reference option of Scale & Rotate. you must Read More...

Lesson13 – Raster Image Overview

A raster image file (also called a bitmap or texture file) is a file thatBits per pixelcontains an ordered arrangement of pixels (picture elements). each tiny pixel is assigned a specific color so that when you display these pixels (e.g. on your screen) you can see an image. raster images are quite different than vector objects (such as ARCs & LINEs) in AutoCAD. some of the parameters that characterize raster images are briefly summarized below. The range of possible values Read More...

Lesson12 – Clipping Xrefs

Xclip lets you clip (crop) an Xref using a specified boundary. only Xref geometry inside the boundary is displayed. the same feature can also be used on standard block inserts. optional top and bottom clipping planes (parallel to the 2D boundary region) define a 3D clipping volume in space. You can trace an irregular boundary, pick corner points for a rectangular window or use an existing polyline of any shape. Using clipped Xrefs with demand loading can also improve system performance Read More...

Lesson11 – Editing Xrefs In Place

When you reference an external drawing in a host drawing, the resulting Xref is like a block insert in the host drawing. this means you cannot modify (e.g. Stretch) individual objects of an Xref when the host drawing is the active drawing. in AutoCAD Release 14 you had to Open the xref drawing file if you wanted to make changes to the individual objects in an Xref. Host drawings may contain many different Xref drawing files that are stored in Read More...

Lesson10 – Binding Xrefs

When you distribute or archive host drawings (that contain Xrefs) you may want to Save a copy of the host & Bind all Xrefs in it. then you can be sure that all reference data associated with that host resides in a single drawing file. bound Xrefs become a standard block insert in the host drawing and the associated external drawings are no longer required. Use Bind Bind Types to retain Xref prefixes of dependent symbols. the “|” character in Read More...

Lesson 9 – Managing Xref Paths

You have the option of selecting Retain Path when you attach a new Xref to the current drawing. if Retain Path is checked AutoCAD retains the complete path of the Xref & looks in this location each time it loads the Xref file. if your folder structure (names & locations) will never change you may want to retain all Xref paths. Paths can change for minor administrative reasons and it may be impractical to retain paths if you expect them Read More...

Lesson 8 – Overlay vs Attachment

You could reference component drawing files in a sub-assembly drawing file (first level host) then reference this sub-assembly file in another file (2nd level host) & you could continue to nest references at higher levels. if you reference a drawing that is already referencing other files, those reference files are nested Xrefs in the current drawing. Nested Xrefs are simply ignored in the current drawing (they do not display) if they were attached using the Overlay Reference Type whereas, nested Read More...

Lesson 7 – Layers & Other Dependent Symbols

When you Insert drawing files into the current drawing, layers of the inserted file are copied if they do not already exist in the host file. if there are duplicate layer names in the external & current drawings, the layer definition of the current drawing is used. this is a self defense mechanism designed to protect the integrity of the current drawing file. if your drawings have different layer definitions for identical layer names you may get unexpected results. AutoCAD Read More...

Lesson 6 – Xref Overview

Using an eXternal reference file (Xref) in the current drawing is similar to using Insert to insert a drawing file into the current file except when you Open a host (a drawing that references external files) the current version of each referenced file is used whereas, when you Insert a drawing into another drawing, there is no link back to the inserted (external) drawing file. Xrefs are practical in large projects because several differentpeople can work on separate Xref Read More...

Lesson 5 – Express Tools

AutoCAD Express Tools is a collection of productivity tools to help you work more efficiently in AutoCAD. these tools can be used for layer management, dimensioning, object selection, object modification and other useful tasks. one way to invoke these tools is from the Express pulldown menu and it appears before the Window menu by default. If you install AutoCAD using the Full option then a sample collection of Free Express Tools is automatically installed. even if you did not install Read More...

Lesson 4 – Quick Select & Properties

You can use Qselect (quick select) to automatically find objects that match specific criteria. when you use this tool you normally select objects first and thenselect an edit command to use (e.g. Move) or you can select the objects using this tool, invoke the desired edit command and then use the Previous selection set. Filter criteria are Applied to the Entire drawing by default but the default automatically changes to Current selection if you invoke Qselect when objects are already Read More...
Show Buttons
Hide Buttons
SUBSCRIBE TO OUR NEWSLETTER

It's FREE!

Sign up and receive an email every time a new tutorial is published