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For questions related to the usage of fans on 3D Printers for the cooling of electronics *not* the print
2
votes
Do you need the front fan on Ender 3 Pro?
Yes, it is necessary.
Its purpose is to cool the heatsink. The filament should only melt in the heater block. If the hotend fan is missing, the heatsink will also heat up, causing the filament to melt …