Hi all, I have my C-Beam all together and I have my power supply, Arduino Uno and GRBL Shield all hooked up. I am trying GRBL Controller and I am able to jog the axis' correctly. I load a simple gcode file and hit begin and the machine seems (to me) to go wild. The display shows the green line and the progress of the cutter (I haven't installed the router yet as I am doing dry trials until I get it right). I have watched Mark's videos dozens of times and when the machine starts up it is relatively quiet. Mine is extremely noisy. I just watched the OX build video and Mark is able to record as the machine is running. Mine is so loud that the dog runs away and it can be heard all over the house. Any ideas would be appreciated! P,S, The same thing happens in GRBL Panel! Thanks Steve B.