Put a piece in the jig on the floor belonged.Invisible humidity jobs.Unable to count humid work fully.If a change is placed in a jig as section 45° humidity.They can be counted, and that loss of visibility.
Place a piece in the jig on the floor flat could not see the job can not count the number of the job is completed. If the switch is placed in the jig is humid 45 ° to the work piece and a piece missing.
Put the pieces on the floor in the jig horizontal cannot see the relief work couldn't count the number of relief work fully. if change is to be placed in jig parts is 45 ° can count the target and see the missing piece. .