In this FAQ, we address several questions about SOLIDWORKS lofts.
Question: How are lofts adjusted?
Answer: Sometimes a loft will not generate as desired. There are a few "tips" that can help make a loft the desired shape.
Question: Are sketches required to create loft features?
Answer: No, sketches can be used as loft profiles however it is also possible to select two surfaces. A loft will be created using the surface edges as the loft profile.
Question: Why are the connectors not shown when editing a loft or sweep with small profile dimensions?
Answer: Connectors are not shown for loft or sweep profiles with very small dimensions (less than 0.1mm).
Question: Is it possible to select 3D sketches as a profile for a loft?
Answer: Lofts can use 3D sketch curves to define profiles as well as guide curves. You can even create a Loft from one single 3D sketch containing all of the geometry needed to define profiles and guide curves. But each profile must be made up of geometry that is planar to each other.
Question: When creating a loft or lofted cut with two identical profiles (at different angles), the profile of the resulting geometry is not consistent, why is this?
Answer: A loft feature does not guarantee a uniform cross-section. The only fixed sections are those defined by sketches. The lofted geometry is an interpolation between the sketches, which can be influenced by guide curves and center lines.
Question: Why are the loft connectors no longer displayed after changing dimensions?
Answer: Check the sketch used for errors, dangling/irregular sketch relations, or anything that might cause the loft to behave incorrectly.
Question: What items are available for Loft within a part?
Answer: The following items can be used for features using the loft command:
Question: Can options in the Loft PropertyManager be permanently set? For example, to always use a face fillet or certain loft tangency conditions.
Answer: Unfortunately, these options cannot be permanently set, even by manual registry edits, as they are hardcoded into the program.
Question: Why does the extended surface, in conjunction with an offset surface generated from a loft surface, produce an edge at the original position?
Answer: If many edges are selected at once, SOLIDWORKS generates a 'split line' at the original edge. A possible workaround is to use the extend command separately.
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