The S1 belt model is 2GT-9 synchronous belt, which has steel wire inside to reduce the risk of stretching and deformation. The length of a single belt is 1623mm. There are three belts on the S1 printer.
Generally based on the frequency of printing, if the machine is used a lot and for a long time, it is recommended to check the tightness in about 15 days. If it is not used frequently, check and adjust if the printing quality is found to have changed.
H3.0 hexagonal wrench