... add a Sketch-Loop?

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... add a Sketch-Loop?

How to add a sketch-path or sketch-loop.

A Sketch-Path is a continuous 'string' of sketch-elements. The start-Points and end-Points are merged into one Point.

About Merge-Points and Coincident-Constraint

Each Line, Arc, Blend-Curve has a Point at its ends. We call these Points the start-Point and end-Point.

To join sketch-elements, into a continuous string, you can:

Add a Coincident Constraint between the end-Point of the one sketch-element with the start-Point of another sketch-element

see Constraints toolbar > Add Coincident

Add Coincident does not remove a Point.

OR

Merge the end-Point of a one sketch-element with the start-Point of another sketch-element

see Geometry toolbar > Merge-Points

Add Merge-Points does remove a Point

Why Merge-Points?

You can add a Profile to a sketch-loop.

You can add a Motion-Path FB (with Motion-Point) to a an open or closed sketch-path. This means you can add a Belt, guide the motion-path for a Robot, ...

tog_minusSketch-Loops with the Hover Technique and Merge-Points Tool
tog_minusWhy do Sketch-Loops fail?
tog_minusExample sketch-loops