1 First of all, we need to find the NPC—— of dnf intelligent doll machine-Matthias Neszmann! ! Need to go to Mann industrial base. 2. Then we can open the map to find the smart doll machine NPC and click the dialogue. Open the store. We can see smart doll machine coins in the shop. Move the mouse up and you can see the materials you need in exchange for other needs. Sorcerer's stone, psychedelic crystal, endless eternity, randomly exchange one of them every day. 4. When the doll machine is turned on, overspeed capsules, Lord artifacts, multiple pocket cans and so on will appear randomly. It also depends on whether luck has seized the bet.