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Solved printer not printing round object

Discussion in 'Troubleshooting' started by simonw, Feb 8, 2016.

  1. simonw

    simonw New Member

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    Hi all,
    this is a new problem,. it was working fine till two days ago. i can print rectangular shapes with no issue. i suddenly can't print this pole. see picture :
    upload_2016-2-8_13-54-6.png

    this is a simple pole which is .2 diameter .
    i"m sure it is an adjustment i need to make on the printer any help would be greatly appreciate.

    thanks in advance
    simon
     
    #1 simonw, Feb 8, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    I'd start with making sure those small layers have time to cool before the next one is put down. Start with a minimum layer time of say 60-90 seconds and make sure the fan is on 100% too.
     
    #2 mark tomlinson, Feb 8, 2016
  3. simonw

    simonw New Member

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    thanks for your reply.
    this is the same material and settings i have used many times successfully(as recent as two days ago).
    this is a problem that just started which is probably something loosened up.
    unfortunately i don't know what to try tighteniing
     
    #3 simonw, Feb 8, 2016
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If you think it is something loose then both the X and Y belt or drive would be at fault since it is bulging in more than one axis.
    Tighten the belts and check for loose set screws on the stepper dive cogs.
     
    #4 mark tomlinson, Feb 8, 2016
  5. simonw

    simonw New Member

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    thanks again.
    I"m new to this. can you send me a link or photo showing me what needs to be tightened. (where the adjustment screws are located)
    My printer is an R1
    thanks again
     
    #5 simonw, Feb 8, 2016
  6. Mike Kelly

    Mike Kelly Volunteer

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    Looks like a cooling issue to me as well. Print a bunch and/or add a secondary parts cooling fan
     
    #6 Mike Kelly, Feb 10, 2016
    mark tomlinson likes this.
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That is a really good idea and will nail what the problem is.
    Print like 4 or more of those things at one time. See if the quality improves.
     
    #7 mark tomlinson, Feb 10, 2016
  8. simonw

    simonw New Member

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    When i slow it down drastically it prints okay. but that behavior changed. i didn't need to slow it down prior.
    i did tighten both belts with not much change in result.
    thanks.
     
    #8 simonw, Feb 11, 2016
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    OK, well the belts alone are not the only thing that will cause an axis to slip/skip.
    Other than the Z the other axis also have a stepper motor with a drive cog on the shaft that uses a set screw to hold it firmly in place. Unless it isn't :)

    If the set screw has worked its way loose it will for all intents and purposes look like a loose belt.
     
    #9 mark tomlinson, Feb 11, 2016
  10. simonw

    simonw New Member

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    will try when i get home this evening.
    thanks
     
    #10 simonw, Feb 11, 2016

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