Overlap Tool ation. Overlap Tool Object Editor How It Works The Overlap Tool filters results. If an instance in the image is a new instance (Pass result) it is passed on to the next tool in the sequence. If an instance is already known, it is rejected (Fail result), and is not sent to the next tool in the sequence. This avoids "double-picking" or "double-processing" of the object. Requirements for Using the Overlap Tool The Overlap Tool will only function in a conveyor-tracking environment. This tool executes correctly only if: ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 619