Block copy item

         north

west Hell portal--1-2-3-4-5-6-↑box↑     
south           
So put the item into the box after putting the device, then go back to the hell gate to commit suicide, pull down the pull bar on the back to unlock the funnel, load a large box in two blocks separately, then unlock the funnel without loading the front block only in the Hell Gate block, then enter the Hell gate on the back, open the box below the box, and make a copy of the item