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Unresolved not print except lvling print

Discussion in 'Troubleshooting' started by broodhawke, Jun 24, 2023.

  1. broodhawke

    broodhawke New Member

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    ok, i will try not to be to winded.

    i installed a DD extruder.

    that was a chore, but my6 issue is a did a lvling test, printed beautifuly, but if i go and try to print anything else, the bed heats fine, but the extruder is another issue, it get to the desired temp but the it raises 3 deg then lowers 2 degrees, all the while saying extruder heating, i can not get a reg print to print, why will it print the lvling test but not a normal regular print, i have used a SD card and USB and neither works..
    thanks
    TIA
     
    #1 broodhawke, Jun 24, 2023
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    1) Which printer
    2) which firmware
    3) which hotend
    4) anything else you changed?
     
    #2 mark tomlinson, Jun 25, 2023
  3. broodhawke

    broodhawke New Member

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    1) ender 3 pro
    2) marlin 4.2.7
    3) sprite extruder pro kit direct drive
    Changed nothing else
     
    #3 broodhawke, Jun 25, 2023
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Not familiar with the electronics on that one, but it should be similar.

    There is no version of Marlin higher 2.1.2.1 => https://marlinfw.org/meta/download/

    That is probably a compatible mod as well. Find the actual firmware version and we can see about looking at the config.
     
    #4 mark tomlinson, Jun 25, 2023
  5. broodhawke

    broodhawke New Member

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    I redid the firmware
     
    #5 broodhawke, Jun 25, 2023
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yes, to what now?
    This:
    "it raises 3 deg then lowers 2 degrees, all the while saying extruder heating"

    Sounds like it is not seeing the extruder temperature correctly or the actual set temperature is higher and it is never getting there.
     
    #6 mark tomlinson, Jun 25, 2023
  7. broodhawke

    broodhawke New Member

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    #7 broodhawke, Jun 25, 2023
  8. broodhawke

    broodhawke New Member

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    It is set to 215 temp. It’s will go to 217. Then it will go down to 212. Keeps fluctuating like that
     
    #8 broodhawke, Jun 25, 2023
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Might be as simple as the parts cooling fan mis-aimed. It needs to NOT be blowing air on the hotend, but onto the printed part.
    Try upgrading to a larger heater core -- I use 40W on all of my FDM machines.
     
    #9 mark tomlinson, Jun 25, 2023
  10. broodhawke

    broodhawke New Member

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    That could be the issue my DD fan is angled down and towards the hotend I will see if removing the fan works. Thanks
     
    #10 broodhawke, Jun 25, 2023
    mark tomlinson likes this.

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