• | Add Line and Arc sketch-elements to give a sketch-loop. |
• | Understand the difference between Merged-Points and Coincident Points |
About Sketch-Loops
Line and Arc (and CAD-Line, Blend-Curve) sketch-elements each have an end-Point and start-Point. They can be joined in two ways.
• | The two Points can be made Coincident and Merged into one Point |
• | The two Points can be made Coincident, but the two Points are remain |
A sketch-Path is a set of sketch-elements in which their start-Points and/or end-Points are MERGED with each-other,
A Sketch-Loop is a Sketch-Path that is also made into a continuous loop.
Coincident-Constraint can also move a Point to be coincident with a Circle, Arc and Line.
TOP TIP : Geometry toolbar > Merge-Points for a sketch-loop and sketch-loop. Constraints toolbar > Add Coincident Constraint for construction geometry. |
![]() Add Coincident Constraint between Points Note 1: Points Note 2: |
Add Coincident Constraint
Merge-(two)-Points
NOTE: You cannot delete the Merge-Points. It not an element. It actually removes a Point element. |
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![]() Click the sketch-element to identify constraints |
Delete Coincident Constraint Remove all elements from the Selection-Window.
All constraints that apply to the Point show in the Selection-Window. In the Selection-Window:
Note: If you SHIFT+CLICK the sketch-element (and not the Points), the Constraints that apply to the start-Point and end-Points show in the Selection-Window. |
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To make a sketch-loop, the end-Points of each adjacent sketch-elements must be Merged-Points If necessary, start the Part-Editor to add sketch-elements.
Use View Align if you prefer the X-axis of the new Part to be horizontal in the Part-Editor. |
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To add an Arc, you must Drag two times:. See Add Arc video. Drag 1: Add Start-Point and End-Point of the Arc Mouse-button-down over an end-Point, move your mouse-pointer, mouse-button-up. Mouse-button down with your mouse-pointer between the start-Point and end-Point of the Arc. Drag 2: Locate the radius of the Arc Drag again to approximate the radius of the Arc |
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Do Add Line and Add Arc commands again, two times more.
When you add the last sketch-element
If you miss a Point as you add the sketch-elements, CTRL+Z or use Geometry toolbar > Merge-Points to merge two Points into one Point. The sketch is similar to the image to the left. |