Create area loft

  1. Click 3D Model tab Create panel Loft . In the graphics window, select the sections in the sequence you want the shapes to blend.
  2. Select Area Loft, and select a 2D or 3D curve as the centerline. The centerline holds the loft shape between sections normal to the centerline.

    Upon selecting the centerline, section dimensions display at each endpoint. They provide the area and position relative to the centerline for each selected section.

    To see whether the centerline is normal to the section, use Area Loft. The section dimension points to a section that is normal to the centerline.

    In addition to these two sections, you can add placed sections to define cross-sections that control the shape of the loft.

  3. To add placed sections, In the Loft dialog box, Placed Sections, select Click to add. Move the indicator along the centerline to the point location, and click to add the point. A section dimension displays for each placed section.
  4. To access the Section Dimension dialog box, couble-click a placed section. You can change the position and the size of a placed section.
    • To change or control the position of a section along the length of the centerline, in Section Position, select the appropriate option, and enter a value. To position the section relative to the length of the centerline, use Proportional Distance. To place the section along the absolute distance of the centerline, use Absolute Distance. For example, if the centerline is 16 inches, to create the placed section in the middle of the centerline, enter 8.
    • To change or control the scale, select the appropriate Section Size option, and enter a value. To scale the section to match a specified area value, select, and enter a value for Area. Dimensions are relative along the length of the centerline. To scale the section to match a specified area value, select and enter a value for Scale Factor. To tweak the shape of the loft, use Scale factor as an aesthetic design tool.
    • Use the Driven Section and Driving Section (Inspection) to define a section. To change the section position and size, select Driving Section. To disable all section size controls, and allow control of only section position, select Driven Section.

      Typically, you use Placed Sections as Driving Sections.

  5. To exit the dialog box, click OK. To make additional edits, either double-click a section dimension, or in the graphics window, right-click the dimension, and click Edit.
  6. To delete a section dimension, in the graphics window, right-click the dimension, and click Delete.