Autodesk 235B1-05A761-1301 User Guide - Page 39
Break, Chamfer, Copy, Erase
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For more information, see "Create an Array of Objects" in the AutoCAD Help. BREAK The BREAK command breaks an object between 2 points that you specify and optionally creates a gap between the new objects that are created. In AutoCAD MEP, when you use BREAK to break segments of duct, pipe, cable tray, or conduit, or to break plumbing lines, the software connects the 2 new segments if the first and second specified break points are the same. However, when you break a segment where a takeoff is connected, the software connects the takeoff to only 1 of the 2 new segments. You should reposition the takeoff as needed. You can break one or more duct, pipe, cable tray, or conduit segments into multiple segments of a specific length. For example, in the Piping domain, you use the Pipe Length on page 329 dialog. For more information about BREAK, see "Break and Join Objects" in the AutoCAD Help. For more information about breaking segments into multiple segments in AutoCAD MEP, see: ■ Breaking or Merging Duct on page 234 ■ Breaking or Merging Pipe Segments on page 329 ■ Breaking and Merging Cable Tray or Conduit Segments on page 449 CHAMFER The CHAMFER command connects 2 objects with an angled line. It is typically used to represent a beveled edge on a corner, but it can also be used to extend 2 objects until they intersect. In AutoCAD MEP, CHAMFER only works on AutoCAD objects, such as lines, polylines, and 3D solids. It does not work on building systems objects, such as schematic lines, plumbing lines, or duct, pipe, cable tray, or conduit segments. To extend and connect these types of objects, use FILLET, EXTEND, or a combination of grips, snaps, and polar tracking. For more information, see "Create Chamfers" in the AutoCAD Help. COPY The COPY command creates duplicates of objects at a specified distance and direction from the originals. In AutoCAD MEP, when you use COPY to copy a selection set of objects (for example, a complete duct branch), the software copies the objects and, if possible, connects a suitable object in the selection set, such as a tee or takeoff, to a segment at the destination. When connecting the object, the software breaks into the segment and then aligns and orientates the object (and the selection set). For more information, see "Copy Objects" in the AutoCAD Help. To copy a device or panel, use Alignment grips instead. The grips enable you to align the copy perpendicular to an object, such as a wall. For more information, see Copying Devices and Panels on page 409. ERASE The ERASE command removes a selection set of objects from a drawing. In some cases in AutoCAD MEP, ERASE joins the objects that remain after you erase an object. For example, it joins remaining duct or pipe segments when you erase inline parts. However, when you erase fittings, the BREAK | 21
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