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kad / Marlin

Customized fork of Marlin Firmware, specifically for Anycubic Mega Zero printers. Check Wiki for more details and instructions.
https://github.com/kad/Marlin/wiki
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fan #10

Closed velidhu closed 3 years ago

velidhu commented 3 years ago

can you tell me how to enable the extruder fan which starts working when the extruder temperature reaches 50 °

kad commented 3 years ago

You need to have firmware that is marked with e0fan in the filename. That would control fan labeled on SKR boards as CNC_FAN2 as automatic extruder fan. You would need to re-wire hotend fan from "always-on" connector to CNC_FAN2

ckiefer commented 3 years ago

@kad That is helpful. On my SKR mini E3 V2.0 board I see locations 'FAN0' and 'FAN1', but I don't see a spot labelled 'CNC_FAN2'.

kad commented 3 years ago

@ckiefer yes, on E3 fans are done differently, thus SKR mini E3 has different labels. https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/blob/master/hardware/BTT%20SKR%20MINI%20E3%20V2.0/Hardware/BTT%20SKR%20MINI%20E3%20V2.0-PIN.pdf FAN0 (PC6) is for part cooling, FAN1 (PC7) by default Controller Fan or in e0fan - extruder automatic fan.