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Unresolved Bed Temperature Limitations

Discussion in 'Troubleshooting' started by Paul Vladuchick, Dec 29, 2014.

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  1. Paul Vladuchick

    Paul Vladuchick Member

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    Good news and Odd News.
    First, the good news: I received the new hot end fan and bracket and it appears to be working properly.

    The Bad News (and it's unrelated to the extruder):

    When heating my bed to extrusion temperatures for ABS (around 100C) the bed goes into error around 85 C.
    I exported my GCode from Slic3r with the following temperature settings:
    Extruder: 225 C
    Bed: 90 C

    The output is shown in the screen capture. The bed warms up first to 85 and throws a reset error prior to the extruder temp heating up (so it's probably not the thermistor on the extruder)

    Yes? How can I diagnose the problem further? What connections can I check?

    paul
     

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    #1 Paul Vladuchick, Dec 29, 2014
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    There was a version of the firmware that had a hard limit of 85 for the bed temperature.
    You might be a proud owner of a printer with that version.

    I would suggest updating it, but I don't know where the correct version for your printer would be located.
    @Mike Kelly can help you out.

    In the interim use a lower bed temperature.

    When did you buy it and does it have a bottom cover?
     
    #2 mark tomlinson, Dec 29, 2014
  3. Paul Vladuchick

    Paul Vladuchick Member

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    Sweet. That's entirely do-able.
    I do have a closed bottom printer.
     
    #3 Paul Vladuchick, Dec 29, 2014
  4. Jochem Timmermans

    Jochem Timmermans New Member

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    #4 Jochem Timmermans, Dec 29, 2014
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Search in CONFIGURATION.H and look for :

    #define BED_MAXTEMP 115

    If it is not defined as 115, feel free to change it then compile/upload.
    I suspect yours was compiled with it defined to 85.
     
    #5 mark tomlinson, Dec 29, 2014
  6. Paul Vladuchick

    Paul Vladuchick Member

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    Excellent. I will attempt to flash my firmware.

    Just for my own information, should I accidentally flash the wrong firmware, can I flash it again with the correct one?
     
    #6 Paul Vladuchick, Dec 29, 2014
  7. Galaxius

    Galaxius Well-Known Member

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    Yes.
     
    #7 Galaxius, Dec 29, 2014
    2 people like this.
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