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Solved Still Seeing some under-extrusion? Suggestions?

Discussion in 'Troubleshooting' started by WizarDru, Dec 1, 2016.

  1. WizarDru

    WizarDru Member

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    So last night I printed this little guy using the Monumental filament on my R1+. Not HORRIBLE, but still seeing some under-extrusion and I'm not sure what the root cause it.

    • I am using an oiler
    • I have extrusion at 100%
    • I have calibrated the filament extrusion
    • The hot-end has been replaced
    • I print in a humidity-controlled room

    I'm wondering if it might be grinding the filament, but I don't see signs that is. The under-extrusion is better than it was, but still happening and giving me poorer prints that Printrbot Simple Metal I own. The R1+ should be the better printer, but I'm figuring there's a problem with my settings making this happen.

    Any suggestions on things to try or root causes?

    herakles.JPG
     
    #1 WizarDru, Dec 1, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Have you calibrated the extruder?

     
    #2 mark tomlinson, Dec 1, 2016
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    I know you said you did, but double check it :)

    Also if this is PLA (you said an oiler) then I agree that is something wrong with the extrusion. If it is something else there may be other issues.

    Also rather than under extrusion it might be a layer bonding issue, but it does look like under extrusion from this angle.
     
    #3 mark tomlinson, Dec 1, 2016
    Last edited: Dec 1, 2016
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Something else you can try if you do feel it is under extruding is to bump up the extrusion multiplier as you are printing it. I have some spools that just want a tiny tweak and that is how I get there.
     
    #4 mark tomlinson, Dec 1, 2016
  5. WizarDru

    WizarDru Member

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    I'll re-calibrate. Never hurts to be sure. And I'll try pushing up the multiplier. I get conservative on going past 100%.

    :)
     
    #5 WizarDru, Dec 1, 2016
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Eh, if you get too high it just gets sloppy the opposite way.
    It will assure you that it is or is not under extrusion :)
     
    #6 mark tomlinson, Dec 1, 2016
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  7. WizarDru

    WizarDru Member

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    It looks like increasing the extrusion and/or playing with the temperature depending on the filament (as well as being consistent with the oiler) seems to have fixed or drastically reduced the problem. endeavour.JPG patrick.JPG
     
    #7 WizarDru, Dec 8, 2016
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