Part cooling and extruder fans won't turn on
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Hey all, as the title suggests I can't seem to get my fans to turn on even while printing. They are plugged into the PWM slots on the duet board, and utilize the same code that originally worked prior to my first board burning out. Is there any chance the fans themselves might be broken? Or is there anything wrong with my config.g code below:
config.g -
@messiahman config.g here to make it easier to review:
; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.3.3 on Wed Oct 06 2021 12:37:23 GMT-0400 (Eastern Daylight Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"The Print-inator" ; set printer name M918 P1 E4 F2000000 ; configure direct-connect display ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S0 ; physical drive 0 goes backwards M569 P1 S0 ; physical drive 1 goes backwards M569 P2 S0 ; physical drive 2 goes backwards M569 P3 S1 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E136.79 ; set steps per mm M566 X1200.00 Y1200.00 Z24.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X9000.00 Y9000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z100.00 E5000.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z800 E1000 I50 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X235 Y235 Z260 S0 ; set axis maxima ; Endstops M574 X2 S1 P"xstop" ; configure active-high endstop for high end on X via pin xstop M574 Y2 S1 P"ystop" ; configure active-high endstop for high end on Y via pin ystop M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H3 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X4.35 Y0.5 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X5:185 Y15:215 S36 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S150 ; set temperature limit for heater 0 to 150C M308 S1 P"e0temp" Y"thermistor" T100000 B4092 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S275 ; set temperature limit for heater 1 to 275C ; Fans M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency M106 P2 S1 H1:0 T45 ; set fan 2 value. Thermostatic control is turned on ; Tools M563 P0 D0 H1 F0 ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C ; Custom settings are not defined ; Miscellaneous M501 ; load saved parameters from non-volatile memory M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss -
@messiahman the config looks ok at first review. I assume if you send M106 P0 S1.0 you get noe movement from that fan? Its possible that whatever damaged your first board also damaged the fans
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@t3p3tony Ahhh thats what I figured, I killed it with the ol' 5v to Gnd when setting up a bltouch, i figured I wouldn't get out unscathed. What fans would you suggest I get as replacement?
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@messiahman if the old ones worked well then no reason to not get the same type. Before being 100% sure its the fans though you could try connecting the to the "always on fan" port to see if they are definitely dead
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@t3p3tony That makes sense, I just figured they were stock for an Ender 3 Pro so I wasn't sure if it would be possible. Thank you for your time, I'll let you know if they work when I get back to my printer.
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@t3p3tony Yeah no, I plugged them into the always on port and homed my printer and they still aren't moving, so I guess it's safe to assume they're gone?
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@messiahman just thought, on the Duet 2 there is a fuse just for the fans, it could be that. please check it.
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@t3p3tony which would it be?
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@t3p3tony I had to open mine up to take a look at the inside because it was all black, so I probably do now need a new one, but this one doesn't appear to have had any wiring on the inside, so I'll go with there's a possibility it was the fuse being that it doesnt appear to have insides
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@t3p3tony Which isstrange because it was basically brand new, nothing got damaged this time around
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@messiahman that is very weird. where did you get the board?
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@t3p3tony Filastruder
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@messiahman do you happen to have a spare 1A or 2A mini blade fuse to try in that slot?
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@t3p3tony I do not, unfortunately. I did just order a pack of 1A fuses online, but that says it will ship on the 20th. I can ask around and see if any of my friends have though
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@t3p3tony One of my friends had a 2A and after plugging it in the fans work perfectly fine, thank you so much!
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@messiahman ok great news.
