Loft

Prerequisites for the function

  • The part model has at least two surfaces between which the loft is created.
  • The part model has the necessary guide curve features if you want to control the generated shape with the guide curves.
  • The guide curves are modeled so that they coincide with the edge curves of the cross-sections.

Add a loft with the ribbon bar function

  1. Select an adding or removing loft on the tab in the Lofting group
    • An adding loft Boss.
    • A removing loft Cut
  2. Select two or several surfaces between the material is added.
  3. Confirm the selection of faces with the Confirm function. (Confirm = V key, middle mouse button or the context-sensitive OK.)
    • The Loft dialog box opens.
  4. Edit the loft data in the dialog box. Loft Feature Data
    • Define the tangency type.
    • Tangency factors are available if you have selected surfaces of a part.
    • If necessary, you can add or remove tangential lines or cross-sections.
    • You can define the twist type.
  5. Select OK.

Add a loft with the context-sensitive function

  1. Select two or more cross-sections or surfaces.
    • Hold down the Ctrl key when you select the second, third etc. surface.
  2. Select the context-sensitive adding or removing loft
    • Loft > Boss.
    • Loft > Cutout.
  3. See steps 4...5 above.

Example: Loft between two planar surfaces

  • Left: Two surfaces selected from the part, between which lofting is applied.
  • Second from the left: No tangency or tangency factors are zero.
  • Third from the left: Tangency to both end surfaces with a factor of 1.
  • On the right. Tangency to one end surface with a factor of 2 and to the other 1.

Example 2

Loft between a cylindrical face of a volume and a planar loft section, with tangency on the guide curve.

Example 3

Loft between a cylindrical face of a volume and a planar loft section, with tangency on virtual guide curves.

Example 4

Loft between two cross-sections.

  • Middle: No tangency.
  • On the right: tangency to guide curves.

Example 5

Loft between several loft section faces, with tangency on the guide curve.