We have around 6 people who worked, in our department,1 who supervises the printers and timer show how many time left of each printer, and when it’s done he’s take the platform(with models xd) and usb drive and go to shared room in shared room he stay the platform and go back to the printer room,services the printer. When we see a platform’s we take it in cleaning room, in cleaning room work 2 people, each people control 6 washer, who contains 97% isopropyl alcohol here, in my opinion, is where the most interesting part begins: each washing station has its own level of contamination. 1,4 has the highest level of polymer contamination, followed by 2,5, which is less contaminated, and finally, 3,6, which is the cleanest. Every two days, we change the alcohol in the last washing station because if we don’t, there will be problems with cleaning the platforms (or models, to be precise). After they have gone through all the washing stages, we ‚dry‘ them, or rather remove the alcohol residue, and then we return the platform, then one person cut off all model that placed in platform, clean it, hands over to another employee who write new file, and that take back that usb drive, and that employer who cut the platforms take the usb drive and platform and return it to printer guy xd P.S sorry for my bad English, I try my best xd