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OctoPrint is one of the best tool you can get for your 3D printer. It provides you with a convenient way to send G-Code to the printer, kick off the print, monitor the print via webcam, and pause/cancel the print all in a beautifully structured user interface.
Once you have indulged yourself in all the great benefits brought forward by OctoPrint, however, you will likely experience a panicking moment when all of the sudden you have lost access to OctoPrint.
That's right! You can't access OctoPrint when you are commuting, at work, shopping grocery, or anywhere outside your home wifi network.