This information should be in the setup video, not as a separate video. In fact, the setup video skips the step on putting the belt through the slot of the x rail sides. Your videos are very nicely detailed with high resolution and great camera angles, but every Ortur video I've seen in setting up my LM3, Rotary, etc has missing steps.
First of all, I want to say sorry to you for bringing you a bad experience. We will pay attention to this issue in the future. At the same time, thank you for giving us real feedback.
I have a problem, the Y axis is inverted and my engravings are done well but inverted, I need a solution please. Can I change some parameter of the firmware to correct it?