Heal Edges PropertyManager
You can merge multiple edges into a single edge. This is useful on imported parts, where edges sometimes import as multiple short edges.
To heal edges:
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Click Heal Edges 
(Features toolbar) or Insert, Face, Heal Edges.
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In the PropertyManager, under Faces:
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Select the faces whose edges you want to heal for Face(s) to Heal 
.
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Set Angular Tolerance to the maximum angle between the edges to be merged.
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Set Edge Length Tolerance to the maximum length of edges to be merged.
Example: If you set Angular Tolerance to 2deg and Edge Length Tolerance to 5mm, then edges with angles less than 2° at the vertex between the edges, and length less than 5 millimeters, merge into one edge.
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Click Heal Edges.
Under Edge Information, Before and After display the number of edges in the part before and after the Heal Edges operation.
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Click 
.