Step 4.1: Sketch-Loops and Merged-Points
Contents
Sketch-Loops.
This topic describes how to use the Part-Editor to add a sketch-loop.
A Sketch-Loop is a closed chain of sketch-elements. The sketch-elements are added end to end. All Points are Merged-Points* - see exceptions below
A sketch-loop is not an element. It is a derived element name.
We can add a Profile to a sketch-loop, and a Hole through a Profile.
*When a Point at the end of one sketch-element is merged with a Point at the end of a different sketch-element: we say the Points are Merged-Points.
You can do this automatically as you add the sketch-elements, or you can use the command: Geometry toolbar > Merge-Points.
Sketch-Loop that is NOT a Sketch-Loop:(!)
You can not add a Profile if
| • | you merge three or more Points to be one Point – this is a Branch Point |
| • | sketch-elements cross over each other - this is a Figure-of-Eight |
| • | sketch-elements touch each other - this is Zero-Thickness |
Example Sketch-Loops
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1: A Circle The simplest sketch-loop. Used for a Cam-Follower Roller. See Also: Cam-Follower |
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2: Lines A general polygon. |
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3: Lines and Arcs General Shape. |
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4: Arcs and Arcs General 'free-form' , 'lozenge' shape |
