control final year project
defect finding can be anything YOU want
you are the designer.
it can be:
color, material , holes, length, depth ....
after deciding find the appropriate sensor
then you can use conveyors to make the object walk on id defected throw away and so on
you can be creative as much as you want.
My advise is put a lower acceptable level since you have a deadline to meet if finished before then add to it.
by the way if someone helps you just push the helped button or pm the thanks