Hello, I’ve had my Crality Hi printing non-stop for the past three weeks. The first few days were great, with zero issues. Then, it started making a noise like a worn-out bearing in the area of the automatic X-axis tensioner and in the rollers at the ends of the X-profile, where the belt passes through. The only way to stop the noise is by loosening the belt a bit, but that leaves marks on the printed pieces. However, with the noise, the prints come out fine. Is there any solution to this problem? Has this happened to anyone else?"
Yes, same issue, i bought mine on aliexpress and got the same issue with right x-axis bearing, addressed to the seller and he said that he is going to send me a new bearing, but the main problem is that I can’t figure out how to replace it.
Hello, sorry for the delay, I just saw the message. To remove that roller, you have to push from the side where the screw goes, and the shaft will come out. Let me know how it went and what bearing it uses. Thank you very much in advance.
Can you provide photos? I’m having the same exact issue. I think it might be a bearing problem. For a 3d printer that just arrived to have this issue is not a good sign.
у меня тоже была такая проблема. подшипники используется ZZ 694. чтобы понять как вытащить шкивы, нужно посмотреть два видео на ютубе по замене рельса на оси X, по замене фотокамеры.
Google Translate: I had the same problem. ZZ 694 bearings are used. To understand how to pull out the pulleys, you need to watch two videos on YouTube on replacing the rail on the X axis, on replacing the camera.
So i too had a terrible grinding noise especially when doing the cutter calibration. I was in the process of getting ready to take it apart when i noticed the head cover was deformed slightly at the back right corner and it was just catching the edge of the bed enough to cause the belt to slip and grind. I used a heat gun to carefully heat it enough for me to bend it back into shape. Ever since that it has been very silent and no more axis warnings. Also i noticed on the larger prints i no rarely get bad prints or failures unless it’s related to filament moisture.