At Station WD, Auto link pcb is used, which causes the problem of not inserting the link properly, causing it to drop and damage the lead print, causing problems with the pcb cleaning IC, causing the machine to don't have time. In another case, the link doesn't lock into the plate. It is tightly attached so that when entering the mounting machine it may cause a collision with the nozzle head and damage it. Spare parts are expensive, costing 1-5 thousand baht per head.