Читать книгу AutoCAD For Dummies онлайн

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5 Save your drawing. AutoCAD automatically backs up your work, but you could still lose the last ten minutes or so. Now is a good time to press Ctrl+S.

Now add a hexagon nut for the bolt:

1 Make the Nuts layer current by using the Layer drop-down list from the Layers Ribbon panel.

2 Start the POLygon command.Its button is either in the upper-right corner of the Draw panel or on the drop-down list with the RECtangle button, depending on which command you last used. You can also type POL and press Enter.

3 Draw a hexagon.Respond to these AutoCAD prompts: POLYGON Enter number of sides <4>: 6Specify center of polygon or [Edge]: cenOf: Click anywhere on the circle.Enter an option [Inscribed in circle/Circumscribed about circle] : C The Inscribed option draws a polygon whose corners touch the circumference of the imaginary circle. The Circumscribed option draws a polygon whose sides are tangent to the circumference of the circle and has nothing to do with a medical procedure. Bolt heads and nuts are normally specified by the width across the flats (unless you own a vintage British car such as a 1937 Rolls-Royce, where Whitworth wrenches are arbitrarily defined by the diameter of the thread), so choose the C option.Move the cursor.The hexagon rotates about its center. You should still have ORTHO turned on, so AutoCAD shows only two possible choices for the vertex of the polygon: horizontal or vertical from the center of the imaginary circle.Move the mouse until a vertex is horizontal from the center of the circle.Respond to this AutoCAD prompt: Specify radius of circle: 1.5Press Enter, and AutoCAD draws the hexagon.