Points
Model points within a given distance of each other are merged, and the elements attached to the merged points are adjusted (moved, stretched, or rotated) as necessary to reflect the new positions of the points. For each set of points to be merged, 
Clean Pnt chooses a location within the given tolerance and moves the points there. In general, there is no way to accurately predict or control which elements will be adjusted as a result of the merge. This should not be a limitation in most cases, however, because the tolerance used is likely to be small. Clean Pnt is most useful for removing small gaps between elements.
Clean Pnt chooses a location within the given tolerance and moves the points there. In general, there is no way to accurately predict or control which elements will be adjusted as a result of the merge. This should not be a limitation in most cases, however, because the tolerance used is likely to be small. Clean Pnt is most useful for removing small gaps between elements.To use Clean Pnt:
Clean Pnt:1. Click Parametric and then, in the Modify group, click Clean Pnt.
Clean Pnt.2. Type a distance tolerance (current length units) in the user input line and press ENTER.
Points within the given tolerance are marked with a *, and will be merged. Elements that will be modified as a result of the merge are highlighted.
3. Click 
Confirm to merge the marked points and modify the highlighted elements.
Confirm to merge the marked points and modify the highlighted elements.