> Parts and Features > Features > Lofts > Loft PropertyManager
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Loft PropertyManager

Set the PropertyManager options based on the type of loft feature. See Loft Overview for more information about lofts.

Profiles

  • Profile . Determines the profiles used to create a loft. Select sketch profiles, faces, or edges to connect. Lofts are created based on the order of profile selection.

For each profile, select the point from which you want the path of the loft to travel.

  • Move Up and Move Down . Adjusts the order of the profiles. Select a Profile and adjust the profile order.

If the loft preview shows an undesirable loft, re-select or reorder the sketches to connect different points on the profiles.

Start/End Constraints

  • Start constraint and End constraint. Applies a constraint to control tangency to the start and end profiles. The options are:

    • Default (Available with three profiles minimum). Approximates a parabola scribed between the first and last profiles. The tangency from this parabola drives the loft surface, which results in a more predictable and natural loft surface when matching conditions are not specified.

    • None. No tangency constraint (zero curvature) is applied.

    • Direction Vector. Applies a tangency constraint based on a selected entity used as a direction vector. Select a Direction Vector , then set the Draft angle and Start or End Tangent Length.

    • Normal to Profile. Applies a tangency constraint normal to the start or end profile. Set the Draft angle and Start or End Tangent Length.

    • Tangency to Face (Available when attaching a loft to existing geometry). Makes the adjacent faces tangent at the selected start or end profile.

    • Curvature to Face (Available when attaching a loft to existing geometry). Applies a smooth, visually appealing curvature continuous loft at the selected start or end profile.

  • Next Face (Available with Tangency to Face or Curvature to Face selected for Start or End constraint). Toggles the loft between available faces.

  • Direction Vector (Available with Direction Vector selected for Start or End constraint). Applies a tangency constraint based on a selected entity used as a direction vector. The loft is tangent to the selected linear edge or axis, or to the normal of a selected face or plane. You can also select a pair of vertices to set the direction vector.

  • Draft angle (Available with Direction Vector or Normal to Profile selected for Start or End constraint). Applies a draft angle to the start or end profile. If necessary, click Reverse Direction . You also apply a draft angle along guide curves.

  • Start and End Tangent Length (Not available with None selected for Start or End constraint). Controls the amount of influence on the loft. The effect of tangent length is limited up to the next section. If necessary,  click Reverse Tangent Direction .

  • Apply to all. Displays one handle that controls all the constraints for the entire profile. Clear this option to display multiple handles that permit individual segment control. Drag the handles to modify the tangent length.

Guide Curves

  • Guide curves influence. Controls the influence of guide curves on the loft. The options are:

    • To next guide. Extends the guide curve influence to the next guide curve only.

    • To next sharp. Extends the guide curve influence to the next sharp only. A sharp is a hard corner of the profile; any two contiguous sketch entities that do not have a tangent or equal curvature relation with each other.

    • To next edge. Extends the guide curve influence to the next edge only.

    • Global. Extends the guide curve influence to the entire loft.

  • Guide Curves . Select guide curves to control the loft.

  • Move Up and Move Down . Adjusts the order of the guide curves. Select a Guide Curve and adjust the profile order.

  • Guide tangency type. Controls the tangency where the loft meets the guide curves. The options are:

    • None. No tangency constraint is applied.

    • Normal to Profile. Applies a tangency constraint normal to the plane of the guide curve. Set the Draft angle.

    • Direction Vector. Applies a tangency constraint based on a selected entity used as a direction vector. Select a Direction Vector , then set the Draft angle.

    • Tangency to Face (Available when a guide curve lies on  the edge of existing geometry). Adds side tangency between adjacent faces that lie along the path of a guide curve, creating a smoother transition between adjacent faces.

For best results, the profiles should also be tangent to the tangency faces at the point where each profile meets the guide curve. The ideal tolerance is 2 degrees or less. You can use profiles with connection points up to 30 degrees off tangency before the loft fails.

  • Direction Vector (Available with Direction Vector selected for Guide tangency type). Applies a tangency constraint based on a selected entity used as a direction vector. The loft is tangent to the selected linear edge or axis, or to the normal of a selected face or plane.

  • Draft angle (Available with Direction Vector or Normal to Profile selected for Start or End constraint). Applies a draft angle to the loft along the guide curve, whenever geometrically possible. If necessary, click Reverse Direction .

Centerline Parameters

  • Centerline . Guides the loft shape using a centerline. Select a sketch in the graphics area.

Centerlines can co-exist with guide curves.

  • Number of Sections. Adds sections between the profile and around the centerline. Move the slider to adjust the number of sections.

  • Show Sections . Displays the loft sections. Click the arrows to display the sections. You can also enter a section number and click Show Sections to jump to that section.

Sketch Tools

Use the SelectionManager to help select sketch entities.

  • Drag Sketch. Enables drag mode. When editing the loft feature, you can drag any 3D sketch segments, points, or planes from the 3D sketch from which contours have been defined for the loft. The 3D sketch updates as you drag. You can also edit the 3D sketch to dimension the contours using dimensioning tools. The loft preview updates when the drag ends or when you edit the 3D sketch dimensions. To exit drag mode, click   Drag Sketch again or another selection list in the PropertyManager.

  • Undo sketch drag . Undoes the previous sketch drag and returns the preview to its previous state. You can undo multiple drags and dimension edits.

Thin Feature

Select to create a thin feature loft.

  • Thin feature type. Sets the type of thin feature loft. The options are:

    • One-Direction. Creates the thin feature in one direction from the profiles using the Thickness value. If necessary, click Reverse Direction .

    • Mid-Plane. Creates the thin feature in both directions from the profiles, applying the same Thickness value in both direction.

    • Two-Direction. Creates the thin feature in both directions from the profiles. Set individual values for Thickness and Thickness .

Options

  • Merge tangent faces . Causes the surfaces in the resulting loft to be merged if the corresponding segments are tangent.

  • Close loft . Creates a closed body along the loft direction. This connects the last sketch and the first sketch automatically.

  • Show preview. Displays shaded previews of the loft. Clear this option to view the path and the guide curves only.

  • Merge result. Merges all the loft elements. Clear this option to not merge all the loft elements.

Feature Scope

Specifies which bodies you want the feature to affect. See Feature Scope in Multibody Parts.

 



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