Inconsistent parts cause problems for automated assembly lines because machines repeat the same motion every cycle. They cannot adjust when a part is slightly different.
An operator who spots a warped bracket sets it aside. A feeder or robot keeps going until it jams, rejects a good assembly, or lets a bad one through. Most of this variation starts before parts reach the line, so it is easiest to control at the source. [Read more…] about Why Inconsistent Parts Cause Problems for Automated Assembly Lines