How to Create Blend Surfaces by Sketching Sections-cách sử dụng lệnh blend bằng cách phác thảo

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Task 1: Sketch sections to create a three-section blend
Creating Blend Surfaces by Sketching Sections
You create blend features when you need to create models that contain different transitional cross-sections. For example, a blend feature enables you to create geometry that starts as a circular cross-section, but then changes to a square cross-section as you transition along the length of the feature.
Blend features can be created as a surface, or used to trim other surfaces.
Sketching the Sections
A blend feature consists of a series of parallel sketches. The blend feature must contain two or more sections. You can sketch the sections through a series of Sketcher sessions while within the Blend tool. If desired, you can reference previous geometry from section to section.
Each section must contain the same number of entities (or vertices). There are two exceptions to this rule:
• The blend can start or end as a single point.


• You can add a number of blend vertex points, each of which counts as an entity. For example, a blend vertex placed on a triangular section enables the system to blend to a square. The system essentially connects the points of each section to create the blend feature

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