I am owner of BambuLab X1-Carbon printer. As I am a designer and I only print my own products, I cannot afford such deviations in printing. I am preparing a larger project that cannot be printed in one piece, so I designed it in several pieces, which I assemble into a whole after printing. But here I noticed a problem. 4 squares (the dimensions of one 180mm x 180mm) which should, after joining, measure 360mm x 360mm. Here, however, there are deviations of almost 2 mm along the diagonal of the square. Test if your printer working fine before you go to bigger project.