Hi all, I have lulzbot AO-101 with an Ultimachine rambo board that I'm trying to modify to be wireless. I've got pins 1-4 on connector X39 connected to a JY-MCU 1.02 running at 115200 baud, but the print stutters around arcs. I'm using Marlin, pronterface, and a simple bed calibration file from lulzbot. Any ideas?by wimyoon - RAMPS Electronics