AutoCAD 2002 Bible

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Figure 7-4: The ARC command options

The drawing used in the following Step-by-Step exercise on drawing arcs, ab7-b.dwg, is in the Drawings folder of the AutoCAD 2002 Bible CD-ROM.

Step-by-Step: Drawing Arcs

1.    Open ab7-b.dwg from the CD-ROM.

2.    Save the file as ab7-2.dwg in your AutoCAD Bible folder. ORTHO is on and units are set to Fractional. Choose Tools О Drafting Settings (or right-click OSNAP on the status bar and choose Settings) and set running object snaps for intersection, center, and endpoint. Make sure OSNAP is on. In this exercise, you draw part of the sealing plate shown in Figure 7-5.

3.    Start the LINE command. Start at 2,3 and use Direct Distance Entry to create a 7-unit horizontal line to the right. End the LINE command.

Cross-    See Chapter 4 for a full explanation of how to use Direct Distance Entry.


4.    Draw another line starting at 5-1/2,1-5/8 and draw it 2-3/4 units long in the 90-degree direction. These two lines are center lines and would ordinarily appear in a different color and linetype than the object you are drawing.

Cross-    You learn about colors and linetypes in Chapter 11.


5.    Draw a circle with its center at the intersection of the two lines (use the Intersection object snap) and a radius of %.

6.    Use the Center object snap to draw another circle with the same center as the first circle and a radius of 1.

Thanks to Jerry Bottenfield of Clow Valve Company in Oskaloosa, Iowa, for this drawing.

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