Print cooling fan not coming on
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G1 E-8.1000 F3000
G1 Z1.469 F1800
; layer 3, Z = 0.469
M106 S255
G4 P500
M106 S71
M105 -
just an FYI does the same thing when I use Slic3r, will check out hardware tomorrow if time allows.
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Do those same commands (M106 S255, wait half a second, then M106 S71) work when you send them manually, with the same tool selected?
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typing those into the G-code window does not get the fan to move, the fan slider still does
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typing those into the G-code window does not get the fan to move, the fan slider still does
Are you certain that you have a tool selected (type T by itself to check), and that the fan mapping for that tool is correct (type M563 P# to check, where # is the tool number)?
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M563 P0
Tool 0 - drives: 0; heaters (active/standby temps): 1 (0.0/0.0); xmap: X; ymap: Y; fans: 0; status: selected -
Which fan connector do you have the print cooling fan connected to? With that configuration, it should be fan 0.
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I think I got it, it is mapped to fan 0, but I only had fan 2 available for PWM. I got a new board so I have have this one repaired (have to find someone, my hands shake too badly) when I swapped everything to the new board I put all the fans exactly where they were. so fan 0 got triggered, but since it wasn't there, no cooling fan. in future if I have a problem with a fan o can I map the firmware to tell it to use say fan 1 or fan 2? and one for the suggestion box, make the fans match in the firmware and the DWC having 0,1,2 and 1,2,3 is annoying.
going to do a test print now to verify this, but the g-code you gave me earlier seems to work. thanks
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If you add parameter F2 to your M563 P0 command, then fan 0 will be mapped to fan 2 when tool 0 is selected.
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grr thats not it!
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M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S0 I0 F255 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off -
Which fan connector do you have your print cooling fan connected to at present?
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fan0
