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Answered Leadscrew firmware updated, but look what it does...

Discussion in 'Troubleshooting' started by wthierry, Dec 30, 2015.

  1. wthierry

    wthierry Active Member

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    I assume I need new firmware, or values for the z axis... I cannot seem to find any info pointing to what I need to download. Please let me know.... wes
     
    #1 wthierry, Dec 30, 2015
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    #2 mark tomlinson, Dec 30, 2015
    Kevin Robo 3D likes this.
  3. wthierry

    wthierry Active Member

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    so as you can see, using the default values, the z axis is moving up too high using the value of 800... the part should be 146mm high, and the circle should be perfectly round. I have printed this part twice, same result[​IMG]
     
    #3 wthierry, Jan 2, 2016
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Looks like a loose belt or drive cog there as well.
    See how uneven the curve is? Even if the Z steps were off they would be consistent.

    Not that this is affecting the Z axis (that is X or Y)
     
    #4 mark tomlinson, Jan 2, 2016
  5. wthierry

    wthierry Active Member

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    I think it looks off, but small calibration cubes print fine 10x10x40mm but this part is supposed to be 146mm high its actually closer to 162mm high , so the layers were not sticking together....
     
    #5 wthierry, Jan 2, 2016
  6. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Just for grins, do you have EEPROM writing enabled?
    Issue the following commands in a terminal window connected to your printer.
    Code:
    M502
M500
    The first command (M502) will reload memory (RAM) settings with those directly from the firmware, the second (M500) will store those newly written commands to permanent storage (EEPROM).
     
    #6 WheresWaldo, Jan 2, 2016
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  7. wthierry

    wthierry Active Member

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    OK, tried that, then did G0 Z146 (the height the part should have been) and it appears to be in the right position now... will try printing again.
     
    #7 wthierry, Jan 2, 2016
  8. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    If this worked, there was something messed up with the EEPROM settings. It is unfortunate that this is not well documented, but EEPROM settings take precedence over whatever you put in the firmware. The storage does not get cleared or overwritten when flashing new versions of the firmware. The result is that you pull your hair out in frustration because every change you make in firmware seems to be ignored and you can't figure out why.
     
    #8 WheresWaldo, Jan 2, 2016
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  9. wthierry

    wthierry Active Member

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    wouldnt that have been reset when I uploaded the
    well its printing away, about halfway done, and looking good, will post the result pic for comparison once its done...
     
    #9 wthierry, Jan 2, 2016
  10. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    I see you stopped your question halfway through and read my second response. EEPROM does not get reset when flashing new firmware. Only resets when you explicitly execute the M502 command.

    Sent from my SAMSUNG-SM-N910A using Tapatalk
     
    #10 WheresWaldo, Jan 2, 2016
  11. wthierry

    wthierry Active Member

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    its still printing the part, but its almost done and looking good... will post a pic when its finished compared to the first.... This really should be in the faq's about flashing....
     
    #11 wthierry, Jan 2, 2016
  12. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    The original Robo firmware did not have EEPROM writing enabled. Likely why that information is not there.

    Sent from my SAMSUNG-SM-N910A using Tapatalk
     
    #12 WheresWaldo, Jan 2, 2016
  13. wthierry

    wthierry Active Member

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    here is the before and after... thanks for all the help! [​IMG]
     
    #13 wthierry, Jan 2, 2016
  14. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Wow. White cat in a snowstorm.
    ;)
     
    #14 mark tomlinson, Jan 3, 2016

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