AutoCAD Mechanical 2014: Symbols


In this video, I’ll show you how to annotate drawings with symbols. If this has been a time consuming task of
adding blocks, exploding and modifying them, I have good news for you. AutoCAD Mechanical comes with all the frequently
used Annotation symbols and also supports numerous standards. Simply choose a standard, select the symbols
and insert them directly into your drawing. It’s as easy as that! Now let’s see how it works and add some annotation
symbols to this shaft. Suppose you want to add a note to this key,
then just click “Leader Note” from the Annotate tab and select the key. I dropped this key from the content library
earlier. That means all the information about it is already stored in AutoCAD Mechanical.
Now see how the leader note automatically picks up this information and displays it
as the default text. And if you want to change the text of course
you can also do so. Next, I’ll dimension the slope of this conical
section. I’ll use the taper symbol to do that First I select the centerline. That is going to be the baseline from which
I want to measure the slope from. After that I specify the attach point and place the symbol. Notice how AutoCAD Mechanical already calculated
the correct ratio. Maybe you want to make some changes to the
symbol later. No problem! Always when you want to check
or change the properties of an object, simply double click it. I’ll now go on and add a surface texture symbol I select the shaft and specify the start point. I want to place the symbol on the shaft without
a leader, so I just press enter when I am asked to pick
the next point Now we can specify the options and select
the value for the roughness average. When I’m done, I click “OK” to place the symbol. I want these two shaft segments to have the
same roughness average as the one I’ve just added. That means I am going to use this value quite
often. So I’m going to add it to the symbol library. That’ll help me to save some time
later. I double click to display its properties….
and add it to the library…. Now we can access this symbol directly from the ribbon… I will now add a symbol to specify the surface
texture requirements for all other surfaces. In the dialog box I flag it as a majority
symbol and specify the roughness average Note how it automatically picks up the other
symbols in the drawing and lists them in brackets, according to the standard. Even if I modify a surface texture or add
a new one later it’ll change accordingly. Let’s go on and add some tolerances. I want to specify a circular runout tolerance. I start with attaching the datum identifiers
that specify the tolerance axis. I click the “Datum Identifier” symbol on the
ribbon and select the attach point. See how AutoCAD Mechanical helps me to keep the standard
by forcing the first segment of the leader to be perpendicular to the shaft. In the same way I create the second datum
identifier. Last I’ll specify the tolerance. I click the “Feature Control Frame” symbol
and select the shaft segment which I want to attach it to. I don’t have a lot of space here so I will
start the leader outside the shaft. AutoCAD Mechanical draws an extension line
as I move the mouse. I click to indicate the start point of the
leader and AutoCAD Mechanical forces it to be perpendicular
to the shaft, according to the standard. I specify the first vertex of the leader… and now this segment can only be vertical
or horizontal. In the dialogue box I select the symbol for
a circular run out and specify the tolerance value as well as the axis. And that’s it! We just added some rather complex annotation
symbols in almost no time. All the symbols in this video comply with
the DIN standard. But AutoCAD Mechanical also provides many more standards. Before you start drawing just go to the options
dialog box and choose the standard you need on the “AM:Standards” tab. The appearance
and behavior of symbols will change according to your choice. In addition to the standard itself you can
even select a specific revision. There is also a fair amount of customization
that you can do without violating the standard…you will find more about this in the AutoCAD Mechanical
Help

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