When you walk through a factory full of automated machines that are doing repetitive tasks you will usually see a large metal electrical cabinet beside each machine. Inside that box will most likely be a PLC that is controlling the machine by monitoring inputs and controlling motors and valves. This all sounds fine until you look at the price of this equipment, $10 or $20K will get you a decent PLC system but you will get a truck load of Arduino gear for that.
Alexander Kozusyev turned to Arduino to provide some simple automation to a production line. I can just imagine the amount of money that was saved. I understand that an Arduino isn’t a true comparison to the rugged nature of PLC equipment that will run in the nastiest production environment in sweltering heat 24 hours a day. But in some situations I think it might make an interesting alternative.
Via: Arduino Blog
“Production line has two independent CNC 3-axis manipulator. The first spraying of release agent. Second automatic pouring polyurethane into the mold. Before spraying or pouring read RFID unique code for the mold, and then loads the G-CODE from the database server based MySQL. After pouring, the mould is moved to the waiting area.”
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