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Answered Does a Smaller Nozzle = Less Oozing?

Discussion in 'Troubleshooting' started by Shane Simino, Dec 7, 2016.

  1. Shane Simino

    Shane Simino Member

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    I've never experimented with different size nozzles. I did just replace mine with a hardened .4mm because I do run wood filament. I know it would slow down the printing a lot, but might be worth it on more intricate prints. Does anyone have any experience with down sizing to a .25mm? Does it ooze and string less? Is it worth it? I can't wait to see what an R2 can do. Haven't ordered one yet. Kind of waiting to see reviews.

    Thanks for any input.
     
    #1 Shane Simino, Dec 7, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Well in the sense that less plastic can flow through the nozzle -- yes.
    In terms of will it ooze less practically? Probably not.
     
    #2 mark tomlinson, Dec 7, 2016
  3. Shane Simino

    Shane Simino Member

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    Thanks Mark. I was just thinking more back pressure with the smaller hole and less likely to fall victim to gravity. Guess that's wishful thinking.
     
    #3 Shane Simino, Dec 7, 2016
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    It is not gravity that causes oozing.
    The extruder forces the plastic into the melt zone and that builds up some pressure (not a lot, but some).

    Unless you are too hot you normally do not get ooze. Well, not normal filaments at least.... Some of the specialties will ooze.
     
    #4 mark tomlinson, Dec 7, 2016
  5. Shane Simino

    Shane Simino Member

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    Ok. I did turn my temp up because I had lamination issues. I'm running at 200C. My lamination issues had more to do with the need for calibration. It was under-extruding by quite a bit. Guess I should drop that temp back down. I was running at 195.
     
    #5 Shane Simino, Dec 7, 2016
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    All you can say about temperatures is that they need testing :)
    Perfect temperatures for a given spool for my printer is not going to be the same for you or @Geof or another printer in my house...

    There is a range given, but even that is just 'typical'
    You have to test to see what works best for any given spool for you.
    Environment really matters.
     
    #6 mark tomlinson, Dec 7, 2016
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  7. Geof

    Geof Volunteer Moderator
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    @mark tomlinson nailed it. I have a great deal of printers and the same spool is a different temp on all printers. Find a test print and test test test :).
     
    #7 Geof, Dec 7, 2016
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  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    IN other news water is quite wet ;)

    (I though I was addicted ... I wuz wrong)
     
    #8 mark tomlinson, Dec 7, 2016
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  9. Geof

    Geof Volunteer Moderator
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    It's like the Sahara in that room lol.... And basement zortrax army lol
     
    #9 Geof, Dec 7, 2016
  10. Shane Simino

    Shane Simino Member

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    Thanks guys. I do really appreciate the help.
     
    #10 Shane Simino, Dec 7, 2016
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