I did these 2 prints this weekend at a local school. I actually printed 3 prints but the the walls were very badly skim coated and not even at all. I had to turn the z axis off because the head kept hitting the wall. The third print was great for 4 and a half feet of the 5 1/2 foot wide print before the gap from the wall to the printhead became to far away from the top right of the image causing it to be blurry. But short of re skimming the wall their wasn’t much I could do about it. I included the video of the 3rd print that went off the rails so you can see why it’s so important to have straight walls😩 the messed up part is the top right of the image at the end of the video. Another lesson learned unfortunately.