Curling could be caused by a few things. Here are a few tips on how to prevent curling:
Increase your bed temperature. If your bed temperature is not hot enough, the filament won't stick to the bed as well. Try gradually increasing your bed temperature to see if it helps.
Use a different bed surface. Some bed surfaces work better than others. Try using a sheet of PEI or a BuildTak sheet on your bed and see if that helps.
Adjust your print speed. Printing too fast can cause curling. Try slowing down your print speed, especially on the first layer.
Try different bed adhesion methods. If hairspray isn't working, try using a glue stick or blue painter's tape on the bed.
Check your nozzle distance to the bed. If your nozzle is too far from the bed, the filament won't stick. If it's too close, it can cause the filament to curl. Make sure your nozzle is at the correct distance from the bed.
Consider using a brim. Adding a brim to your print can help hold down the ed...
still glacier
alpine parcel