Sketch-Loops.
This topic describes how to use the Part-Editor to add a sketch-loop.
A Sketch-Loop for a Profile is a closed chain of sketch-elements. The sketch-elements are added end-to-end - see exceptions below
All Points are Merged-Points* -
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 to a sketch-loop to cut 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 Merge-Points automatically as you add the sketch-elements (fastest and most convenient), or you can use the command: Geometry toolbar > Merge-Points.
¥ - The start-Point or end-Point of a sketch-element
EXCEPTIONS - Closed chain of Sketch-Elements but NOT Sketch-Loops:
•three or more Points are merged to one Point – this is a Branch
•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 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 |
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