I have encountered a rather frustrating problem. After a plot completes I have to power cycle the Eggbot before I can plot again, otherwise I receive an error starting Eggbot can't be found on any serial port. If I power cycle, or unplug the USB for about 30 seconds, it will work for another plot, but only once and then I get the error again.
OS X 10.11.1 on MacBook Air
The issue occurs with both USB ports and multiple cables.
Any insight would be most helpful.