Whatever happened to this idea?

[JeremySimmons]

This happened

Making your own powerful Controller on the cheap side

Phil, Why stay with the Arduino and a USB interface? If I was to upgrade away from the X-Controller (I did start with the UNO-GRBL Shield) I would like to have an Ethernet or other connection that was not USB as this is the weakest point I see in the configuration. I have looked at a Raspberry Pi hat that would get rid of the USB connection but I don’t believe that would be enough of a reason to change out the X-Controller but if I still had the UNO-GRBL setup I would do that before I went to …