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I am new to the laser world. I received my s1 10w from hand a month ago and I still haven't been able to do anything decent. I have problems with skipped lines and visible lines on the engravings. Is it a problem with my settings or is my s1 defective? I use the default settings of the xtool materials as I have only used official xtool materials so far. I attach photos of some things done. On the tumblers you can also notice a misalignment of the engraving