1) Edge curling: Increase the temperature of the hot bed, use glue or tape, and seal the printing chamber
2) Blocking: heating nozzle, cleaning nozzle, reducing retraction distance
3) Wire drawing: increase the retraction distance and reduce the temperature; Dry consumables before printing
4) Layering: Increase nozzle temperature, reduce fan speed, and increase ambient temperature
5) Spot: Drying materials, reducing printing temperature, checking the feeding system