Too many problems with my printer X1 Carbon oder P1S

i have too many problems with the two printers that keep costing me a lot of time. this is unacceptable. i changed the filament cutter on both because it was jammed on the other because the small screw was overtightened (although i used the correct hexagonal makerfire 1.5 mm) and also the hardened gear wheel which thought it no longer needed to turn. babu lan uses parts here that simply don’t meet the requirements and are too cheap in terms of quality ) so i’m disappointed. especially as the printers are also fun and i like to construct them when they are running.
thanks for reading

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