l. Print a successful raft
It is essential that a good raft is printed to guarantee a good build. Therefore the height of the hot-end nozzle over the bed for the first layer is critical:
If the nozzle is too far away from the bed, the filament will not stick to the bed
If the nozzle is too low it will not be able to extruder the filament, and there is a risk of damage to the bed and the nozzle.
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