Hello everyone I recently got my Robo R2 and as my first time using a 3D printer so I don't know what to expect, there are things that are a bit concerning but not sure if it's an issue or a normal thing. First when I started setting it up the printer made grinding noises, I found out that the X and the Y axis is moving in one direction too much and when they can't move any further they make grinding noises, is this normal? And second when I turned off my Robo R2 and after the screen where they said "flip the power switch when the screen goes black" the screen showed yellow stripes. is this also normal? but nevertheless I am excited about using my Robo R2 and getting prints with it, thank you.