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Isometric Dimension Arrow

September 19, 2009 in AutoCAD, CAD, Revit


isometric dimension arrow

I have posted a couple tutorial how to draw isometric drawing and dimensions. If you look at the dimension closer, there’s something not right. The dimension arrow is still use the default arrow, which is not isometric at all.

In this post, we will create a new dimension arrow to fixed this. You can use this technique to create your own dimension arrow later. But now, we just use it for isometric dimension.

First, you have to create a drawing, how you want your arrow look like. I create something like this. Make a dimension arrow pointing to right. You may want to use ellipse or something else. You can also use lines, arc, hatch pattern, etc. But let’s create something easy first.

Three things you can use as a guide when you draw it:

  1. Use angle about 30deg, because it is the default angle for isometric drawing in AutoCAD.
  2. Draw a dimension using existing arrow. Refer to the existing arrow for your arrow size.
  3. Now related to #2, check your dimension style. You have to create the dimension arrow as large as size 1. If you have your arrow size 100 in your dimension style, then resize your arrow you created to 1/100.

arrow

Create it as a block. Make sure your insertion point is at the arrow tip.

insertion point

Now open dimension style dialog box. Modify your isometric dimension style, in symbols and arrows tab, change your first and second arrow heads to user arrow. Then select your block.

arrowheads

Check your drawing now.

dimension result

Looks better. But there is something still not right. Take a look at dimension showing 700 value. It’s not supposed to look that way. How to fix that?

Well, there is no other way. You have to create another dimension style for it. Want to try it by yourself?


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Source: CAD Notes – Isometric Dimension Arrow
Go to Source: CAD Notes

Hatch your Drawing by Dragging the Hatch Pattern from the Design center

July 22, 2009 in AutoCAD, CAD

Hatch is an integral part of our drawing, without hatch pattern our drawing is somewhat dull in presentation. And without hatch our drawing will hardly be understood by the readers. Well of course if you are a Draftsman or an Architect, you should already know the importance of hatch in a drawing. After all, it is instilled in drawing standard which we studied when we still in college, studying Architecture or Drafting I supposed.

Anyhow, I just recently discover some technique in doing a hatch so I decided that I’m going to share it here in this blog. So to start, there are many ways to add a hatch pattern in our drawings, one of that ways is the conventional approach or the most commonly use method in adding a hatch, and it is by using the command BHATCH or simply HATCH. You can find Hatch command, under the Draw Pulldown menu, then Hatch. Alternatively, at the command prompt, key-in BHATCH/HATCH or simply BH or H for shortcut. Then after that, a dialogue box will appear (fig.1). From there you can just select the hatch pattern that you want to use by clicking the box at the side of the Pattern (fig.1), then the hatch pattern pallette will appear (fig.2) then just select which hatch you wan to use.

(fig.1)

(fig.1)

Fig.2

Fig.2

And finally, the other way of adding a hatch in our drawing is by dragging the hatch pattern from the DesignCenter. A method that somehow relatively new for me, and I can safely say that for most of us AutoCAD user’s as well. Anyway, here is the step by step method on how to drag the hatch pattern from the DesignCenter.

Fig.3

Fig.3

 

Fig.4

Fig.4

  1. Click the Insert Pulldown menu, then Design Center (fig.3), or Ctrl+2 for keyboard shortcut. Alternatively, at the command prompt, key-in ADCENTER. Then the Design Center dialogue box will pop-up (fig.4).
  2. On the Folders tab, click the search button.
  3. In the Search dialogue box, do the following entries (fig.5):3.1. In Look For, select Hatch Pattern Files.
    3.2. In the In Box, select the drive where the program is installed.
    3.3. Select the Search subfolders option.
    3.4. On the Hatch Pattern Files tab, in Search for the Name, enter *      (asterisk) . (dot) pat.
     

  4. Click Search Now button. , the default hatch pattern file is acad.pat or acadiso.pat. The search results may display the same file in different locations.
  5. In the search results, double-click the file to laod the hatch patterns into the content area of DesignCenter.
  6. Right-click a pattern to display a shortcut menu with the following options: (Optional only)6.1.  HATCH -  Opens the hatch and gradient dialogue box.
    6.2.  Copy - Stores the hatch pattern to the clipboard.
    6.3.  Create Tool Palette – Creates a new Tool Palette with a selected pattern displayed.

  7. From the content area, drag the hatch pattern you want onto a closed object on your drawing. If you the hatch pattern scale is too large or too dense you can adjust it, by double-clicking the pattern to display the hatch dialogue box or by adjusting it in Object Properties (assuming your object properties is open) (fig.6).
Fig. 5

Fig. 5

Fig.6

Fig.6

There, thats it for today.

Related Posts

Source: PinoyCAD[dot]net | Your Daily dose of AutoCAD Tutorials – Hatch your Drawing by Dragging the Hatch Pattern from the Design center
Go to Source: PinoyCAD[dot]net | Your Daily dose of AutoCAD Tutorials

Using Object Snap (Osnap)

July 22, 2009 in AutoCAD, CAD

Object Snap or Osnap for short, is an AutoCAD command primarily use to specify precise locations on objects, from your drawing. Therefore this command works to make your drawing more accurate and reliable. For example, you can use an object snap to draw a line to the center of a circle, or to the midpoint or endpoint of any polyline segment.

Object Snap Toolbar

Object Snap Toolbar

By default, a marker and a tooltip are displayed whenever you move the cursor over an object in your drawing. And  from there you can specify a point, when AutoCAD prompt you for a point. To specify an Osnap at a  prompt for a point, you can press SHIFT, and right click to display the Object Snap shortcut menu list. Or click an Object Snap button on the Object Snap toolbar. Or you can just key-in the name of an Object Snap at the command prompt. Just remember that Object Snap works only when AutoCAD ask you for a point, from any command that’s in effect. An error message will be displayed if you try to use an Osnap at the command prompt.

Object Snap

Object Snap

Importance of Object Snap

So, what’s the importance of Object Snap? a question that every AutoCAD users should ask. Object Snap or Osnap is essential to us AutoCAD users, for this function helps us makes our drawing more reliable, more accurate and exact, when it comes to doing our work we’ve been assigned to. Without Osnap in AutoCAD, or without knowing  how to use this function your drawing will be more likely as a drawing without a real information.

Random Posts

Source: PinoyCAD[dot]net | Your Daily dose of AutoCAD Tutorials – Using Object Snap (Osnap)
Go to Source: PinoyCAD[dot]net | Your Daily dose of AutoCAD Tutorials

Creating Regions by using Boundary Command

July 22, 2009 in AutoCAD, CAD

Regions are two-dimensional enclosed areas that have physical properties such as centroids or centers of mass. Two or more existing regions can be combine into a single, complex region to calculate an area.

A region can be created from an bojects that form closed loops. Loops can be a combinations of lines, polylines, circles, arcs, ellipses, elliptical arcs, aand splices. Regions can be used for, applying hatch and shading. Regions can also be used in analyzing properties, such as area by using command Massprop and List. Regions can as well be used in extracting design information, such as centroid.

Boundary dialogue box

Boundary dialogue box

There are lot of ways in AutoCAD to create regions,but the easiest way I know of creating regions are by using Boundary command. This command can be found under the Draw pulldown menu. Or at the command prmopt, type Boundary or BO for shortcut. After keying-in Boundary command, a dialogue box will appear, just click the Region or Polyline on Object type, then click Pick points, and the n select the internal point you want to be created as region.

Selected Boundary

Selected Boundary

Related Posts

Source: PinoyCAD[dot]net | Your Daily dose of AutoCAD Tutorials – Creating Regions by using Boundary Command
Go to Source: PinoyCAD[dot]net | Your Daily dose of AutoCAD Tutorials

Hatch your Drawing by Dragging the Hatch Pattern from the Design center

July 18, 2009 in AutoCAD, CAD

Hatch is an integral part of our drawing, without hatch pattern our drawing is somewhat dull in presentation. And without hatch our drawing will hardly be understood by the readers. Well of course if you are a Draftsman or an Architect, you should already know the importance of hatch in a drawing. After all, it …

Source: All About CAD – Hatch your Drawing by Dragging the Hatch Pattern from the Design center
Go to Source: All About CAD