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Partial Answer Failure or unacceptable print rate %

Discussion in 'Troubleshooting' started by Chris Rodriguez, Jan 27, 2016.

  1. Chris Rodriguez

    Chris Rodriguez New Member

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    Just curious from others what their failure or unacceptable print rate is. Example how many prints fail out of 10 or how many have to be reprinted due to not turning out good(unacceptable finish, to weak, etc). Just looking for ball park figure from folks. I print almost exclusively from SD, my failure rate was much higher before that.

    I would say my failure rate is about 2 out of 10, my unacceptable finish rate is about 2-3 out of 10.

    Breakdown of failures
    1. machine physical issue, z ribbing, belt slipped, etc.
    2. Not right slicer settings
    3. Bad model, quite a few bad designs on thingiverse from model to thin to won't work with any free slicer.
    4. Just didn't work, wrong size, didn't fit, etc.

    Also anything that someone did to make their percentage better is always appreciated. I have to admit seasoning my extruder help a lot for me. Also I think slicing in Cure helped quite a bit too, not just curaslice in mattercontrol.

    Thanks,
    Chris
     
    #1 Chris Rodriguez, Jan 27, 2016
  2. Mike Kelly

    Mike Kelly Volunteer

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    Do you mean number of prints that complete and aren't of good quality? Or do you mean number of prints started vs finish?
     
    #2 Mike Kelly, Jan 27, 2016
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    I recently did a huge run -- hundreds of copies of the same STL. Fairly complex.
    Out of that we had a 5% overall failure rate.
    Some of that was just the printer falling down (or the software driving the print) and some was filament related failures.

    Those printers ran for a few weeks non-stop. I was OK with that.
     
    #3 mark tomlinson, Jan 27, 2016
  4. Chris Rodriguez

    Chris Rodriguez New Member

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    Mike,
    Well really both that you mentioned. I broke mine down by different causes and issues. Just trying to get a feel from others with the Robo what their failure rates are for whatever reason.
     
    #4 Chris Rodriguez, Jan 27, 2016
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The overall rate was 5%. I didn't keep records of which ones failed because I was an idiot, which ones were filament related or which ones were the printer. There were no model issues (this was essentially the same model for all)
     
    #5 mark tomlinson, Jan 27, 2016
  6. Chris Rodriguez

    Chris Rodriguez New Member

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    Oh wow, that sounds like you have your dialed in pretty well then. I would love to have mine around that level.
     
    #6 Chris Rodriguez, Jan 27, 2016
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Even if we make the 'failed due to idiot operator' percentage low... :) It was at worst a 5% failure from the printer.
    Those types of failures were things that I couldn't explain, for example the first layer would just start off completely whack.
    It had to be an autolevel issue, but it appeared to autolevel fine. If I killed the print and restarted it would be fine.

    Those types of failures I blamed the printer. Screwing up the settings (temperature, slicer, etc.) were all me. Filament jams and the like were also included.
     
    #7 mark tomlinson, Jan 27, 2016
  8. Chris Rodriguez

    Chris Rodriguez New Member

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    Mark,
    Great info. Gives me at least the hope that a Robo3d can print very constantly. I know on mine even if I exclude the operator error ones my failure rate is much higher. I guess I have some more tuning to do.

    But this is the kind of info I was looking for. Curious if your results are above average or not. Sounds like from all your posts you really have your working well.

    I do have another smaller 4"x4" custom 3d printer that uses ball screws and THK linear slides that is pretty rock solid and I use for more small precision stuff like gears. About the only failures I get on that one are operator failures. Would like to get my Robo to that level since it has a larger working envelope.

    Thanks,
    Chris
     
    #8 Chris Rodriguez, Jan 28, 2016
  9. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    My failure rate is higher than 5%, probably low double digit. But I am pushing bigger prints and suffering from the dreaded "Why in the world did Robo only choose to heat 67% of the build area!"
     
    #9 WheresWaldo, Jan 28, 2016
    mark tomlinson likes this.
  10. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    This is a valid point. The last large batch I did was not one that needed a heated bed, although I did use it (panacea R' US).
    Those types of filaments do seem to fail a bit more often, but I blame that on the printer design :)
     
    #10 mark tomlinson, Jan 28, 2016
  11. Chris Rodriguez

    Chris Rodriguez New Member

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    Oh wow, I haven't seen that one yet. Yeah that would be a big issue. Good tip.
    Thanks
     
    #11 Chris Rodriguez, Jan 28, 2016
  12. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Robo build area is approximately 10 inches square, heated area is approximately 8.2 inches square. (100 sq in vs. 67 sq in).
     
    #12 WheresWaldo, Jan 28, 2016

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