Please note that the synchronous belt is not closed, it has two crimped ends.
The synchronous belt of the X-axis and the left baffle were pre-installed in the factory before the shipment. If it's not attached properly, maybe it's caused by the transportation. So sorry for the inconvenience.
Customers need to manually install the synchronous belt of the right baffle during the machine assembly. This instruction is not mentioned in the paper manual or the assembly video. So sorry for the inconvenience. We have reported this issue to our engineer and we will update the paper manual in the future.
2 For the synchronous belt of the right baffle, please follow the instructions/video in this link to install it.
https://drive.google.com/file/d/1ZpnuEaEeCLpfa6_thFRCckO0pbeZrxhy/view?usp=drive_link
https://drive.google.com/file/d/1qEVycWolRyMKaBHFm4105J1Oto4t93Ce/view?usp=drive_link
3 For the synchronous belt of the X-axis, please follow the instruction/video in this link to install it.
https://drive.google.com/file/d/1xlexKvvj-HW53WG8Z7phKtcnj6e9HwGJ/view?usp=drive_link