Setting up the First Viewport

Một phần của tài liệu autocad workbook for architects and engineers (Trang 248 - 253)

Now you can add your views relative to this paper using either the Floating Viewports or the commandMVI EW.First setup the existing viewport. In model space, ZOOMthe current view to a scale of 1 to 500.

Command:MS Command:Z

Specify corner of window, enter a scale factor (nX or nXP)

or[All/Center/Dynamic/ ...

. ... . Object] <real time>:1/500xp

Thiszooms the view to exactly 1I500th or 1:500.

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You must be in paper space for this.

Pick up the frame on the comer and drag it into place.

There is no standard scale for this in the Properties manager. UsetheProp- erties toolbar to set up a custom size of 1-500 or use ZOOM.

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Command:Zoom

Specify corner ... <real time>:1/50XP

Command: Zoom

Specify corner ... <real time>:1/25XP Toggle into model space, then zoom into

the footing views so that they are approxi- mately centered in the view.

Then use ZOOM with the XP scale or Properties to zoom them. Footing A should be at a scale of 1:50. Footing B should be at a scale of 1:25.

Command:M for move Then pick the view and move it.

Keep the view that is zoomed at 1:500 on the bottom.

Zooming the Views

It is more practical to have the smaller views on top, so move the views and stretch them until they look like this.

Making New Views

Now add two more views withMVIEW.

Command:MVIEW

Specify corner of viewport or [ON/OFF/Fit/Hideplot/Lock/Ob ject/ polygonal/Restore / 2 /3/ 4] : (pick 1)

Specify opposite corner: (pick 2) Command:MVIEW

Specify corner of viewport or [ON/OFF/Fit/Hideplot/Lock/Obje ct/ Polygonal/Restore

/2/3/4] :(pick 3)

Specify opposite corner: (pick 4)

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Step 7

Step 8

TheZOOMcommand is viewport dependent. You must beinInodel space to zoom the objects usingZOOM,or in paper space to change the scale using the Properties menu shown on the left.

Adding View Titles

So you don't forget what scale you have zoomed the views to, add the notations.

Make the Pspace layer current, then use theTEXTcommand. The underline toggle is

%%U. Make the title text height 2.5 mm for the title and 2 for the scale.

Command:text

Specify start point of text or [Justify/Style]: (pick a point beneath the view)

Specify height<10.000>:2.5

Specify rotation angle of text<O>:~

Enter text: %%UFo()ting A.J Command:text

Specify start point of text or [Justify/Style]:~

Specify height<10.000>:2

Specify rotation angle of text<O>:~

Enter text:%%UScale 1:50~

Add the titles and scales for Footing B (scale I :25) and the layout (scale 1:500).

Dimensioning the Views

Toggle to paper space to zoom to the outside of your border so you

can see your footing well enough :ition,praceit:

to dimension it.

Go to the Create Dimension Style dialog box and make a new dimension layer called Pspace.

Under the Fit tab, choose Scale dimensions to layout. This will make all of the dimensions sized to the respective views.

Choose OK to exit this dialog box, and set current to have the Pspace dimension style active.

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Toggle back to model space to access the in- formation within the viewport in order to di- mension it.

In model space, go to the Layer pull-down menu and make DIM! frozen in the current viewport. Then make DIM2 current.

Use linear dimension to dimension the part as shown.

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Once it is completed, toggle back to pa- per space to pan the drawing over so that you can access Footing B.

Then toggle back to model space, make theDIMl layer frozen in that viewport, g make D1M3 current, and dimension the view as shown.

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Do the same for the layout view. Notice that you must make DIM2 and DIM3 frozen as well. You can also freeze the Detail layer in this view.

You may also find that you need to freeze the Footprint layer to place the dimensions properly. Once the dimensions are completed, thaw the Footprint layer.

You may notice that when the Footprint layer is turned back on, the default dimension size just doesn't work. The numbers look too large and clumsy for the layout.

Itis always useful to know how to create a custOln-scaled dimension layer for cases like this. The automatic dimension scaling is OK for many applications, butinthis case a dimension scale of 450 is better than one of 500, which is the default for this window zoom factor.

Go to the Dimension Style dialog box. Create a new dimension called Fullview.

Set the Fit factor for the overall size to 450, then make it current. Put one dimension on with the new size. Ifyou like it, use Match properties to update the other dimensions.

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Itis a good idea atthis pointto go into each view andre-zoom at 1I500XP, lIS0XP, and 1/25XPjust in case you have zoomed the views while dimensioning.

Step 9

Thaw the Footprint layer if you have frozen it.

The convention for a repetitive dimension like that ofthe footing baysis to put in one dimension F and assume that the rest are the same.

The footings must be labeled:A H beside allA footings, and B be- side allB footings.

Adding the Title Block Your three views are n~ady, and they are already labeled. Now all you need to do is freeze the Border layer and add a title block.

With your Border layer frozen, you often see that the layout could use a bit of minor adjustment to make it look better.

Bring the borders back. Move them around if necessary, go into the views to tighten up some ofthe dimensions, and move the view ti- tles around so that th ere is room for a titleblock.

Finally add a title block. Either draw a new one orfill intheone that you opened. Your drawing is now ready to plot.

Use the PLOTcommand and plot to a scale factor of 1: 1.

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