Idle temperature hot-end and bed to high



  • Hi, I just finished installing a duet2WiFi on my Ender3Pro and everything seems to work ok. Only funny thing is that the idle temperature of both my hot-end and bed are around 39 degrees Celcius. How can I calibrate these temperatures because in my opinion they should be in the low twenties and of course will also influence the temperatures in the high ranges. Hope someone can point me in the right direction.



  • post your config.

    did you follow the guide for the maestro and took the maestro resistance values for the duet wifi?



  • @Veti Yes I did. I followed the guide to the letter



  • @Veti I will post my config tomorrow, I just turned the printer off



  • @dden said in Idle temperature hot-end and bed to high:

    Yes I did. I followed the guide to the letter

    that would be wrong as the duet wifi has different resistance value



  • @Veti Ok so now I am worried. Let’s dig in tomorrow



  • @Veti Below is my config

    ; Configuration file for Duet Maestro (firmware version 2.03)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.4 on Fri Aug 28 2020 14:54:26 GMT+0200 (Central European Summer Time)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"Ender 3 Pro" ; set printer name

    ; Network
    M552 S1 ; enable network and acquire dynamic address via DHCP
    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 S1 ; physical drive 2 goes forwards
    M569 P3 S0 ; physical drive 3 goes backwards
    M584 X0 Y1 Z2 E3 ; set drive mapping
    M350 X16 Y16 Z16 E128 I1 ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E790.00 ; 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 X1 Y1 Z1 S1 ; set active high endstops

    ; Z-Probe
    M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
    M557 X10:220 Y10:220 S20 ; define mesh grid

    ; Heaters
    M305 P0 T98801 B4185 R2200 ; set thermistor + ADC parameters for heater 0
    M143 H0 S80 ; set temperature limit for heater 0 to 80C
    M305 P1 T98801 B4185 R2200 ; set thermistor + ADC parameters for heater 1
    M143 H1 S275 ; set temperature limit for heater 1 to 275C

    ; Fans
    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 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S0 I0 F500 H1:0 T45 ; set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

    ; 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 are not defined

    ; Miscellaneous
    M501 ; load saved parameters from non-volatile memory
    M911 S21 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
    T0 ; select first tool



  • @dden said in Idle temperature hot-end and bed to high:

    M350 X16 Y16 Z16 E128 I1 ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E790.00 ; set steps per mm

    The Duet wifi can not do 128 with interpolation. only x16. Maestro can do x128 with interpolation
    Adjust the E Steps accordingly.

    @dden said in Idle temperature hot-end and bed to high:

    M305 P0 T98801 B4185 R2200 ; set thermistor + ADC parameters for heater 0
    M305 P1 T98801 B4185 R2200 ; set thermistor + ADC parameters for heater

    Duet Wifi has a Resistance of R4700. R2200 is duet Maestro



  • @Veti Thanks I will correct these settings.



  • @Veti I corrected the settings and now everything works like a charm. Thank you very much for your help. Much appreciated!!


  • Moderator

    @dden you can just leave the R value out. The firmware knows the proper value from the hardware.

    Ian



  • @droftarts Thanks good to know.


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