Hello, I received our Robo Beta from the Kickstarter campaign in late 2013. We had a lot of trouble with ABS prints sticking to the bed, and then we started having trouble with Repetier connecting to the micro controller properly. Events are fuzzy from six years ago, but I remember that the connection issues started out sporadic and got to a point finally where we could not connect at all. We never did get the Robo Beta running properly back then. Fast forward to late 2019 and I’m trying to finally chase the problem down and get our Robo alive again. When there is power to the printer, and then when I plug in the USB cable I don’t see any LED’s light up in the controller. If there is no power to the printer, and then I plug in the USB cable, LED1 on the controller flashes green twice and Repetier beeps a couple of times. Manual commands sent by Repetier give the message “Commands Waiting”. We also have a Solidoodle 2 and have printed gobs of ABS prints. It appears that the Sanguinololu Arduino clone controller lights up when a USB cable is plugged into it, so I’m guessing that our Robo Beta controller has issues of some sort. Any ideas on where to start troubleshooting? Thanks for any help.