![]() ![]() During the print, navigate to LCD Menu -> Support -> Extruder info -> Fan speed. ![]() If the fan is correctly mounted, you can check whether it is spinning fast enough. While spinning, it must push air inside, not outside. First off, make sure that you don’t see the sticker on the fan - that would mean the fan is mounted backward. Check the extruder fanĪs you can imagine, the cooling fan needs to be working properly to cool the heatsink enough. ![]() When screwing your nozzle into the heater block, you should tighten it all the way in, but never try to (over)tighten it so that the nozzle head would touch the heater block. Again, this is to control heat flow inside the hotend. In all assembled E3D v6.1 hotends, there should be a gap of about 0.5 mm (0.02 inch) between the heater block and the hexagonal head of the nozzle. Extruder assembly Gap between the nozzle and the heater block CETUS3D EXTRUDER UPGRADELuckily, the MMU2S upgrade kit does this for you at the end of each print! If you don’t have the MMU2S, you can simply use the printer’s “Unload” feature. Good practice: After your print is finished, while the hotend is still hot, unload the current filament. Printer does not turn on or keeps turning off.IR Filament Sensor Troubleshooting (MK2.5S, MK3S).Firmware updating issues (MK2S/MK3S/MMU2S).Extrusion stopped mid-print (Heat creep).External SPI flash W25X20CL/xFLASH not responding - error. ![]()
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