slow fan
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I have my duex2 LED5 pin used to turn on and off the heatsink fan. Unfortunately, it never runs very fast. If I connect that same fan to 24v, it happily blasts air past the heatsinks. The idea is after it finished printing and the machine cools down, it can become quieter.
Is there an issue with fans on the duex2?
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How do you have it configured?
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; Fans M950 F0 C"fan1" Q500 ; create fan 0 on pin fan1 and set its frequency M106 P0 C"part cooler" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off M950 F1 C"duex.fan5" Q500 ; create fan 1 on pin duex.fan5 and set its frequency M106 P1 C"hotend" S0 H1:2 T60 ; set fan 1 name and value. Thermostatic control is turned on M950 F2 C"duex.fan6" Q500 ; create fan 2 on pin duex.fan6 and set its frequency M106 P2 C"lighting" S1 H-1 ; set fan 2 name and value. Thermostatic control is turned off -
M106 P1 C"hotend" S0 H1:2 T60Try changing the S0 to S1. When the temp is reached, you want it to turn on (S1), not off (S0).
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@phaedrux Thanks, but that doesn't solve the issue of fan speed. its still much slower than a direct connection to the power supply.
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I wonder if it's the mosfet on the Duex. The other fan headers on the duex work fine?
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@phaedrux It's the strangest thing, but all of them do this. It's a consistent behavior.
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@mentaluproar can you show your full config.g?
Ian
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Also please post the results of M122 and M98 P"config.g"
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Config.g
; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Fri May 14 2021 22:58:27 GMT-0400 (EDT) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"foamboard forge" ; set printer name ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S0 ; physical drive 2 goes backwards M569 P5 S1 ; physical drive 5 goes forwards M584 X0 Y1 Z2 E5 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E686.66 ; set steps per mm M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z1800.00 E1200.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z800 E350 I30 ; 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 X300 Y300 Z350 S0 ; set axis maxima ; Endstops M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M950 S0 C"duex.pwm3" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X27 Y14.2 Z4.122 ; set Z probe trigger value, offset and trigger height M557 X10:290 Y10:290 S20 ; define mesh grid ; Heaters M308 S0 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"e1heat" T0 ; create bed heater output on e0heat and map it to sensor 0 M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"duex.e2temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin duex.e2temp M950 H1 C"duex.e2heat" T1 ; create nozzle heater output on duex.e2heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S280 ; set temperature limit for heater 1 to 280C ; Fans M950 F0 C"fan1" Q500 ; create fan 0 on pin fan1 and set its frequency M106 P0 C"part cooler" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off M950 F1 C"duex.fan5" Q31600 ; create fan 1 on pin duex.fan5 and set its frequency M106 P1 C"hotend" S0 H1:2 T60 ; set fan 1 name and value. Thermostatic control is turned on M950 F2 C"duex.fan6" Q500 ; create fan 2 on pin duex.fan6 and set its frequency M106 P2 C"lighting" S1 H-1 ; set fan 2 name and value. Thermostatic control is turned off ; Tools M563 P0 S"hotend" 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 M308 S2 P"duex.e3temp" Y"thermistor" A"chamber temp" T100000 B3988 C0 R2200 ; chamber temperature sensor M307 H0 A77.5 C296.9 D3.8 C24.1 B0 ; calibrate bed heater M307 H1 A348.9 C165.7 D3.7 C24.2 B0 ; calibrate hotend heater ; TODO ; When a seperate lighting control method is found, break lighting out from fan controlsM122
M122 === Diagnostics === RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2.2 running on Duet WiFi 1.02 or later + DueX2 Board ID: 08DDM-9FAM2-LW4SD-6J9F4-3S46Q-92XHW Used output buffers: 3 of 24 (10 max) === RTOS === Static ram: 23460 Dynamic ram: 73880 of which 24 recycled Never used RAM 14716, free system stack 189 words Tasks: NETWORK(ready,169) HEAT(blocked,308) DUEX(blocked,31) MAIN(running,449) IDLE(ready,20) Owned mutexes: WiFi(NETWORK) === Platform === Last reset 00:02:12 ago, cause: power up Last software reset at 2021-05-15 00:11, reason: User, GCodes spinning, available RAM 14716, slot 0 Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a Error status: 0x00 Aux0 errors 0,0,0 MCU temperature: min 21.1, current 27.7, max 28.5 Supply voltage: min 24.1, current 24.2, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes Driver 0: position 0, standstill, SG min/max not available Driver 1: position 0, standstill, SG min/max not available Driver 2: position 0, standstill, SG min/max not available Driver 3: position 0, standstill, SG min/max not available Driver 4: position 0, standstill, SG min/max not available Driver 5: position 0, standstill, SG min/max not available Driver 6: position 0, standstill, SG min/max not available Driver 7: position 0 Driver 8: position 0 Driver 9: position 0 Driver 10: position 0 Driver 11: position 0 Date/time: 2021-05-17 22:44:34 Cache data hit count 159721035 Slowest loop: 8.67ms; fastest: 0.21ms I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0 === Storage === Free file entries: 10 SD card 0 detected, interface speed: 20.0MBytes/sec SD card longest read time 3.9ms, write time 0.0ms, max retries 0 === Move === DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000 === MainDDARing === Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === AuxDDARing === Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1 === GCodes === Segments left: 0 Movement lock held by null HTTP is idle in state(s) 0 Telnet is idle in state(s) 0 File is idle in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger is idle in state(s) 0 Queue is idle in state(s) 0 LCD is idle in state(s) 0 Daemon is idle in state(s) 0 Autopause is idle in state(s) 0 Code queue is empty. === Network === Slowest loop: 15.65ms; fastest: 0.00ms Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions HTTP sessions: 1 of 8 - WiFi - Network state is active WiFi module is connected to access point Failed messages: pending 0, notready 0, noresp 0 WiFi firmware version 1.25 WiFi MAC address 60:01:94:34:39:67 WiFi Vcc 3.40, reset reason Turned on by main processor WiFi flash size 4194304, free heap 26176 WiFi IP address 10.0.0.17 WiFi signal strength -47dBm, mode 802.11n, reconnections 0, sleep mode modem Clock register 00002002 Socket states: 0 0 0 0 0 0 0 0 === DueX === Read count 1, 0.45 reads/minM98
M98 P"config.g" HTTP is enabled on port 80 FTP is disabled TELNET is disabled -
What position is the voltage select jumper in? Vin, 12v, or 5v?
Does disconnecting the LEDs make a difference?
Does changing the PWM frequency make a difference?
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@phaedrux It's at 12v....because the LEDs are 12v, but the rest of the system is 24v! Of course!
I'll try fixing this tomorrow but I seem to remember there was some reason I had it wired up this way.
EDIT: I remember, I blew some of the mosfets on the duet over the years so the duet fan headers don't work right, hence I used the deus. I really should fix this things properly someday
