I have had two 3D printers previously and seeing this my father purchased the Robo 3D R1+, and has had it for about 6 months or more and still has yet to get it working. I can see the USB/ serial port active in the connecting setup process but it will not connect to Matter Control and have literally tried every available combination of options in the software. I am guessing I may need to update the software in the printer itself; however, have not been able to locate files or information about this on the site. I have also tried Cura 2.5 with no success in connecting the printer.
I am using Linux Mint 18.1 64-bit. The original SD card has Matter Control 1.3 July 6, 2015.
Thanks in advance!