Tuning nozzle heater cartdrige



  • Hi,

    I'm wrong, and install a 12v, when I'm using it at 24v. Then try Tuning the Nozzle Heating … and give me and error .... Normal

    After this I have changed the heater cartridge for a 24v .... but, when I try to adjust it, with M303, I can not get it, since it seems, it is set for one of 12v, and does not let it adjust for one of 24 ...

    So I thought:
    A- Set some standard values for the Nozzle heater cartridge
    B- Do an autotuning .....

    At this point I get 2 problems:
    1- I do not know what normal values are for the M307 command ... and where they are saved in config.g
    2- I do not see any M307 command in my config.g, I only see one M301 command that refers to the hot bed.

    I need instructions to proceed to perform the adjustment of the Nozzle heating cartridge.

    Thank you



  • i have try to tunning nozzle heater, with a low temperature, for start point… but i cant

    [[language]]
    18:00:24   M303 H2 S100
    Auto tuning heater 2 using target temperature 100.0°C and PWM 1.00 - do not leave printer unattended
    
    

    results

    [[language]]
    18:04:17   Warning: Auto tune of heater 2 failed due to bad curve fit (G=80.7, tc=210.0, td=-inf)
    18:01:04   Auto tune phase 3, peak temperature was 173.4
    18:00:43   Auto tune phase 2, heater off
    18:00:30   Auto tune phase 1, heater on
    18:00:24   M303 H2 S100
    Auto tuning heater 2 using target temperature 100.0°C and PWM 1.00 - do not leave printer unattended
    
    

  • administrators

    Something isn't right. You asked for a peak temperature of 100C but it overshot to 173C which suggests an overpowered heater (e.g. 12V cartridge running on 24V). But the G=80 figure suggests the exact opposite.

    Which firmware version are you using?

    I suggest you try running M303 again, but this time try S200 and P0.5.

    After a successful heater tuning, you can save the corresponding M307 command to config-override.g by sending M500.



  • Hi,

    i am using 1.21Rc3….

    There is some form of check if heater cartdrige is 12v or 24v?

    Maybe a termistor malfuntion....? to much presure in fixing screw to heater block?

    later try...


  • administrators

    To check whether a heater cartridge is 12V or 24V, measure its resistance. See step 9 at https://e3d-online.dozuki.com/Guide/V6+Assembly/6?lang=en.



  • Hi…

    solved....

    the screw that holds the thermistor to the hot block, it was very tight .... when loosening it, it has started to work well ...

    Thanks for the help, it has put me on the way


 

Looks like your connection to Duet3D was lost, please wait while we try to reconnect.