Autodesk 235B1-05A761-1301 User Guide - Page 348

If you want to... manually select segments to modify then... click (Select Objects), and select specific segments to break or merge. 4 Specify the operation and then click OK: If you want to... then... break a segment select Break, and enter a value for Pipe Length. You can also click (Pipe Length), and specify a start point and endpoint for the new length. The cut length for the pipe segments is the same as the break length. merge multiple segments that are adjacent, connected, and aligned along the same centerline select Merge, click segments to merge. (Select Objects), and select the NOTE The last used routing preference selection is preserved. 5 (Optional) Use the Properties palette to verify cut length for full-length segments. See Connector Engagement Length on page 267 for more information about cut length. Locking the Size of a Pipe or Fitting You can lock the nominal size of an existing pipe or fitting to ensure that it is not accidentally changed when you are modifying the pipe routing. For example, you might lock the diameter if a pipe run passes in close proximity to building elements or other systems, and the pipe diameter cannot be increased without interfering with other components. To lock the nominal diameter 1 Select the pipe segment or fitting to lock. 2 On the Properties palette on page 325, under Dimensions, select Locked for Size lock (Unlocked by default). When locked, the nominal size list is inactive and the pipe or fitting diameter cannot be modified. You can, however, still modify the length or elevation of a pipe segment. To turn off a size, unlock this setting on the Properties palette. 330 | Chapter 7 Drawing Piping Systems