u/LucasDR9811

https://reddit.com/link/1th6u1z/video/a00trx05oz1h1/player

I bought a set of RJ4JP-01-08 polymer bearings on aliexpress. My goal was to reduce noise and replace the old y-axis linear bearings that were already worn out. At first glance, everything was working and the noise was surprisingly low, the problem is that unfortunately the tolerances left something to be desired and the bed was vibrating a lot, as you can see in the video. Moral of the story, I needed to buy new conventional bearings to at least have the printer functional again.

Don't buy chinese bearings

https://preview.redd.it/dka5fyg8ddzg1.jpg?width=3072&format=pjpg&auto=webp&s=0633ff6e9146d9fc20381e7619d5e4d369d525b8

https://preview.redd.it/foqy0wg8ddzg1.jpg?width=1080&format=pjpg&auto=webp&s=1c55b0d7e6bfb849f44927ce7eee31570f1a15bb

https://preview.redd.it/6v8xvbrvddzg1.png?width=1919&format=png&auto=webp&s=b34a0ddea7b71689e5e0c02d4519822198bfbb52

If you have any unused Android device, know that it is possible to use it as an OctoPrint server and have wireless access from your printer. In my case I used an old Chinese TVBox (I am aware of the possible security risks XD) and plugged directly into the printer power supply using a buck converter to lower the 24V to 5V, when the printer turns on it also turns on and starts the octoprint server automatically. I removed the PCB from TVBox and mounted it in a space not used inside the printer, from the outside it is possible to see only the USB cable, but I intend to change this by soldering directly to the usb pins of the printer's motherboard