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Unanswered Powder white film on bottom of PLA prints

Discussion in 'Troubleshooting' started by Magnumr, Dec 3, 2015.

  1. Magnumr

    Magnumr Member

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    Hello
    So I printed this object 4 weeks ago with PLA black on 230 nozzle temp and heated bed of 50...today I noticed there was white film rubs off like fine powder on the the base of object. I checked the other prints and they also have it only on the side that touched the bed.
    Only parts I printed after adding oiler have this... What is it... Is it safe and why?
     
    #1 Magnumr, Dec 3, 2015
  2. Magnumr

    Magnumr Member

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    Please see pics

    sorry for the second pic being on the blurry side
     

    Attached Files:

    #2 Magnumr, Dec 3, 2015
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Probably something with the filament (and I suspect it is safe) or residue from something that cleaned the bed?
    Oiler didn't cause that (I use one with all PLA) unless you are using some weird oil :)
    Other than that seeming to be a bit on the hot side I see nothing wrong.
     
    #3 mark tomlinson, Dec 4, 2015
  4. danzca6

    danzca6 Well-Known Member

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    What adhesive are you using on your bed? What type of oil are you using? Like Mark, I use an oiler without this issue. Just 100% canola. I also just use hairspray on the bed. Try cleaning the bed and see if there isn't something odd built up on it.
     
    #4 danzca6, Dec 4, 2015
    Last edited: Dec 4, 2015
  5. Magnumr

    Magnumr Member

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    I just use a heated bed to stick my PLA print, and I use only canola oil for oiler...granted in the beginning I used way to much oil
     
    #5 Magnumr, Dec 4, 2015
  6. danzca6

    danzca6 Well-Known Member

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    Do you see this will all types of filament and colors or just a specific roll or make? I've never tried a bare bed print before with PLA. I normally just use a thin layer of hairspray for insurance.
     
    #6 danzca6, Dec 4, 2015
  7. Magnumr

    Magnumr Member

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    I have not printed with another roll yet, just comparing prints made before and after adding oiler
     
    #7 Magnumr, Dec 4, 2015
  8. danzca6

    danzca6 Well-Known Member

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    What are you using to clean your bed? Have you done it lately?
     
    #8 danzca6, Dec 4, 2015
  9. Magnumr

    Magnumr Member

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    I use rubbing alcohol and paper towel and wipe the bed after each print.
     
    #9 Magnumr, Dec 4, 2015
  10. Pergo

    Pergo Member

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    I use this stuff and wow the printer is quieter and smoother..
    http://www.amazon.com/gp/product/B00C3M5QK2

    Problem with cooking oils is that it get's sticky and does the opposite of lubrication after a while.
    Go look at your deep fryer and you will see what I mean..
    Bio.. Oh and if you get some on you.. it has no taste.. :p
     
    #10 Pergo, Dec 22, 2015
  11. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Hey @Pergo I think @Magnumr is talking about Canola in a filament oiler, not as a general lubricant.

     
    #11 WheresWaldo, Dec 22, 2015
  12. Magnumr

    Magnumr Member

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    yes I am talking about canola oil as a filament oiler.
     
    #12 Magnumr, Jan 14, 2016
  13. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    I haven't noticed any residue on mine. The hairspray does seem to leave a slightly milky film, but the oiler itself adds nothing.
    If you are doing it right none of the oil makes it past the nozzle anyway :) or at least, really very little.
     
    #13 mark tomlinson, Jan 14, 2016
  14. Geof

    Geof Volunteer Moderator
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    Ditto with @mark tomlinson . The "glaze" from hairspray on my prints I use windex on a rag and wipe it off the print
     
    #14 Geof, Jan 15, 2016

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