As the subject states, what is the difference between coincident and pierce?
Imagine a helix passing through a sketch plane. Coincident will constrain a point to any place on the helix as viewed normal to the sketch plane. Pierce puts the point at the place where the helix crosses the plane.
See this thread:
What is the difference between Pierce and Coincident relations in a sketch
2015 SOLIDWORKS Help - Description of Sketch Relations
Thank you all for that explanation.
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