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Drafting Tips


AutoCAD Tip - Align Dimensions Quickly

We all have experienced the lazy drafter who doesn't bother aligning his dimensions, positioning them in way that makes it difficult to read a drawing.
 
Well, somebody usually gets stuck with the "clean up task" and if that persion is you and you are using GRIPS to do the job, you aren't working at top speed.  Instead, go to the Dimension Menu->Align Text and select the position you want the dimension text to be in.
 
You can even create a shortcut key to switch positions quickly and assign them to tool icons.
 
Then instead of multiple clicks, you can fix a drawing in a matter of seconds instead of painstaking minutes.

Double-Click to Edit  Dimensions 

 

You can change the double click function for dimensions from "properties" to
"ddedit" . Mine used to pull up the properties box for a double click. I
just changed the command and now it works fine.
 
- Open the CUI
- In the Top-left pane:
- Expand the Double Click Actions tree
- Expand the Dimension tree
- in the Bottom- Left pane (command list:)
- find the Text, Edit... entry and drag it to replace the Properties option that's under the Dimension tree in the top-left pane


Trim or extend vertical or horizontal lines in AutoCAD

We usually use a Trim or Extend command when we need to line up lines against a specific boundary. Did you know that when the lines you need to Trim and/or Extend are vertical or horizontal, the Change command is the easiest way to perform this task? All you need to do is to select those lines, turn the Ortho On, and then at the prompt "Specify change point or [Properties]:" select the point on the boundary against which you want to line up your lines.


Setting the default inner and outer diameters of a donut

To set the default inner diameter of a donut: Enter DONUTID on the command line. Enter the new diameter value. Press ENTER. To set the default outer diameter of a donut: Enter DONUTOD on the command line. Enter the new diameter value. Press ENTER.


Changing the status of an xref from attached to overlay without detaching and reattaching it

The attached or overlay status of an xref can be quickly changed without detaching and reattaching it. The following steps describe the process. 1. Select an object from the xref you want to overlay. This highlights the entire xref and any nested xrefs. 2. Right-click anywhere in the screen area to display a pop-up menu. 3. From the pop-up menu, select Xref Manager to display the Xref Manager dialog. 4. Highlight the xref name under the Reference Name of which you want to change the status. 5. Under the 'Type' heading, double-click the word Attach. Notice it changes to Overlay. (The status changes each time you double-click the Type heading.) 6. Choose OK to complete the process.


Fast Copies and Moves

Select an object or objects. Then, instead of using the left mouse button, right-click the object and drag. When you release the mouse button, a shortcut menu appears and you can choose Move Here, Copy Here, Paste as Block or Cancel.


XPLODE NOT EXPLODE

Breaks a compound object into its component objects.

Xplode allows you to control the color, layer, lineweight and linetype of the components of an exploded objects. It works similarly to EXPLODE but with more OOMPH.

A compound object comprises more than one AutoCAD object. For example, a block is a compound object. You can explode multiple compound objects at the same time and change the color, layer, lineweight, and linetype of each object individually or change the entire selection set globally. You can specify a color, layer, lineweight, and linetype, or these properties can be inherited from the object being exploded.


This tip comes courtesy of Christopher Collins - THANKS!

Power Up Your OSNAPS

Osnap is an additive command controlled by the command "osmode". You canquickly set the autosnap settings by typing 'osnap' and selecting the ones you want / normally use. Type "osmode" and it will prompt you for a numberwith a default listed. The default is the number that sets autosnap to the

For example, I type "osmode", enter and, "239", and enter. This sets my autosnap to endpoint, midpoint, center, node, intersection, insertion and perpendicular. These are the settings that I use most frequently. When I open a drawing that someone else has worked on, I immediately set osmode to 239.

Also, a tip most people don't realize: Use tab to scroll through the autosnap settings that you have selected until you get the one you want with the entity you want. Use F3 to turn osnap on and off.


Save Before Undo

Another way to save entities which would otherwise be erased by the Undo command is to copy (<CTRL>-C) the entities to the clipboard, then use the Undo command to go back to the drawing state that you want, then paste (<CTRL>-V) the entities back into your drawing.

You might want to use this method when you need to copy some geometry out of a block, for example, but do not wish to have an unexploded block in the drawing.


Hidden Option In Array

Array has a hidden option. This is the much requested Angle Between Items. Start the 'array' command. At the enter type of array prompt, select 'P' for polar. Specify the center point for the array. At the enter the number of items in the array prompt, DON'T ENTER A NUMBER! Instead, hit <ENTER>. You will then get the prompt:

Specify the angle to fill : Type in the angle value. And then the prompt Angle between items: Enter the angle value between items. The command continues with the Rotate arrayed items <Y/N> prompt and then creates the array.


Ellipses in MDT

Set the PELLIPSE variable in Mechanical Desktop to 0 to draw a true mathematical ellipse that requires only three constraints. When PELLIPSE is set to 1, you draw a polyline version that may need more than 20 constraints to be fully constrained.


Disappearing Hatch

If you open an R12 or earlier drawing in R14 or later, and can not see the hatching, check the FILLMODE setting. If FILLMODE is set to OFF, the hatching will not show.

This is to speed up REGEN times. To check, type FILL.


Making Your Mark

The AutoCAD Undo command removes the results of a command one command at a time. If you're about to embark on a series of changes you're not sure you want to keep, use the Mark option in the Undo command. This places a mark in the Undo file. If you subsequently select Undo's Back option, AutoCAD undoes all commands issed since the Mark option was last selected. You can use Mark as many times as you like within a drawing session.


Ellipse In Isometric View

To Draw an ellipse in isometric view, just start the ellipse command and then enter I for isometric.


Speedier Shading

Selecting Shade from AutoCAD's pull-down menu pops up another menu with four options: 256 color, 256 color edge highlight, 16 color hidden line, and 16 color filled. The SHADEDGE systems variable controls the default method. Set it to the method you prefer, then just enter Shade at the command prompt.


Quickly finding similar objects within your drawing

Rather than using filters and going through the hassle of setting up a filter, you can use the SSX utility to help you quickly locate objects of a similar type. For instance, if you copied an object a number of times into your drawing and you'd now like to select all hose objects to manipulate them, you can use the SSX utility to help you select them all. You can use the SSX utility anytime you see the Select Objects: prompt.

First, start by selecting a command to use, for example MOVE. Once the command is invoked, you'll see a prompt asking you to Select Objects. Instead of selecting an object on the screen, type (ssx) in response and press [Enter]. You'll then see this prompt

Select object/ <None>:

Select one of the objects you copied in your drawing. You'll now see information about that object in the command line similar to this

Filter: ((0 . "CIRCLE") (8 . "0") (210 0.0 0.0 1.0)) >>Block name/Color/Entity/Flag/LAyer/LType/Pick/Style/Thickness/Vector: Press [Enter] in reply to the last prompt and you'll notice that all of the similar objects to the object you selected in your drawing are now part of the selection set. You are then presented with the Select Objects: prompt again, in case you want to continue to add to the selection set. Press [Enter] in response to this prompt. Now your command will continue where it left off. If you're using the MOVE command, as we did in this example, you'll see a prompt asking for the Base point or displacement. As you can see, this is a handy tool for creating selection sets.


Speed up the 'erase' command

Click on the 'erase' icon twice with the right hand mouse button.

This will display Button Properties.

The Macro command line should read - ^C^C_erase

Change this line to read - *^C^C_erase single

Now when you erase objects, just click on them and they will

disappear immediately. No need to confirm each selection

with the right mouse button.