What is the maximum extrusion volume

Discussion in 'E3D-v6 and Lite6' started by yoorek, Feb 26, 2016.

  1. yoorek

    yoorek Member

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    Hi,

    Just a quick question. What is the maximum extrusion volume in mm3/sec for E3DV6 and for Volcano?

    I remember reading somewhere that there is a limit of 8-10 mm3/sec (in general, not just for E3DV6).
    I know about the calculation (nozzle size * layer height * print speed). I've created a spreadsheet that shows me what are the safe speed for given layer height and nozzle size. So far I have not been able to achieve this level of extrusion (10 mm3/sec).

    Apart from high speed printing (which my delta is capable of) I run a simple test - given the filament size of 1.75mm, I should be able to push the filament into the air so to speak at the rate of 4.15mm/sec. This I have not been able to achieve. The highest I could go without extruder grinding through the filament was 2.5mm/sec which gives me the extruded volume of 6.01mm3/sec.

    The calculation for that is - Pi * (filamentSize / 2)^2 * feedRate
    where Pi = 3.14159 and feedRate is expressed in mm/sec

    Any thoughts on this?
     
    #1 yoorek, Feb 26, 2016
    Last edited: Feb 27, 2016
  2. UlrichKliegis

    UlrichKliegis Well-Known Member

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    Not quite sure if you compute the volume per minute or per second now. With the given data, I get 6 microliters per second, 360 µl / min = 360 mm³ / min.

    Cheers,
    U.
     
  3. yoorek

    yoorek Member

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    Volume is in mm3/sec. I've already edited my original post. My bad. :-(
     
  4. yoorek

    yoorek Member

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    BTW which head do you get that with? Standard E3DV6 or Volcano? And which nozzle size. What is the maximum extruder feed rate in mm/sec you are able to get?
     
  5. UlrichKliegis

    UlrichKliegis Well-Known Member

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    I get that from my old trusty pocket calculator, an HP 41CX. And brain v.0.62, latest beta version.
     
    yoorek likes this.
  6. yoorek

    yoorek Member

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    ROFL

    This however does not answer my original question :(
    I am trying to setup my delta and would like to know how much filament other people are able to push through the hot end. I have no reference point as this is my first E3D head.
     
  7. elmoret

    elmoret Administrator

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    Best you can hope to do is about 15mm^3/sec on v6, and about 40mm^3/sec on Volcano.
     

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