Unable to turn on heater

  • Hi, need some help here. I'm using my old delta printer and changing out the board to Duet. I have updated to all the latest firmware.
    Motion of the axes is fine already, and now I'm testing the heaters.

    In the RRF Config Tool:

    Trying to set it up now and I'm facing this issue:
    So basically, I can't manually turn on heater for Tool 0.
    Also, on the DWC, Heater shows as n/a

    I did try Output: e0heat (inverted) and the heater works. It heats up immediately, and the Temperature Chart reflects the temperature increasing. But heater is still "n/a".

    Am I missing something here?

    Not sure if this is needed but I've included config.g here:

    ; Configuration file for Duet WiFi (firmware version 3)
    ; executed by the firmware on start-up
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu May 21 2020 18:55:31 GMT+0800 (Singapore Standard Time)
    ; General preferences
    G90                                           ; send absolute coordinates...
    M83                                           ; ...but relative extruder moves
    M550 P"Qubea"                                 ; set printer name
    M665 R125 L250 B100 H397                      ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0                                 ; put your endstop adjustments here, or let auto calibration find them
    ; 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 S1                                    ; physical drive 2 goes forwards
    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 Z80.00 E663.00              ; set steps per mm
    M566 X1200.00 Y1200.00 Z1200.00 E1200.00      ; set maximum instantaneous speed changes (mm/min)
    M203 X18000.00 Y18000.00 Z18000.00 E1200.00   ; set maximum speeds (mm/min)
    M201 X1000.00 Y1000.00 Z1000.00 E1000.00      ; set accelerations (mm/s^2)
    M906 X1000 Y1000 Z1000 E800 I30               ; set motor currents (mA) and motor idle factor in per cent
    M84 S30                                       ; Set idle timeout
    ; Axis Limits
    M208 Z0 S1                                    ; set minimum Z
    ; 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 Z2 S1 P"zstop"                           ; configure active-high endstop for high end on Z via pin zstop
    ; Z-Probe
    M558 P0 H5 F120 T6000                         ; disable Z probe but set dive height, probe speed and travel speed
    M557 R85 S20                                  ; define mesh grid
    ; Heaters
    M140 H-1                                      ; disable heated bed (overrides default heater mapping)
    M308 S0 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin e0temp
    M950 H0 C"e0heat" T0                          ; create nozzle heater output on e0heat and map it to sensor 0
    M143 H0 S280                                  ; set temperature limit for heater 0 to 280C
    M307 H0 B0 S1.00                              ; disable bang-bang mode for heater  and set PWM limit
    ; 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 S0.5 H T50                            ; set fan 1 value. Thermostatic control is turned on
    ; Tools
    M563 P0 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
    T0                                            ; select first tool

    Thanks in advance!

  • In tool defination (M563) you have to assign heater to it, by adding H parameter, in your case it is heater 0, so M563 P0 D0 F0 H0

  • That works like a charm ❤ Thank you!
    1 more question: Can I use a heated print bed without a temperature sensor? If yes, how can I set it manually? I can't do it through the RRF Config Tool.

  • As far as i know, you can not use any heater without sensor.

  • administrators

    You can't configure the bed heater as a heater without a temperature sensor, but you could configure it as GPIO and control it using M42.

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