e3d on vertex 8400

Discussion in 'E3D-v6 and Lite6' started by Anders, Oct 10, 2016.

  1. Anders

    Anders New Member

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    Hi,
    trying to follow the instruction at http://wiki.e3d-online.com/wiki/E3D-v6_on_Velleman_K8400
    but I am confused.
    Why cant I run the fan included in the complete e3d kit directly from the k8400?
    The original fan is 12v so why do I need a separate 12 V source?
    (my heatbed, MK3, run on 24v so that means I need to buy yet another external power source)

    Regards
    Anders
    Spånga, Sweden
     
  2. mike01hu

    mike01hu Well-Known Member

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    It is OK to use any 12v supply from your board or use a 12v regulator connected from your 24v supply. If your original fan was 12v then use that connection.
     
  3. Alexander Ciccaroni

    Alexander Ciccaroni New Member

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  4. Paul Winter

    Paul Winter Well-Known Member

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    The concern is that the heatsink on the E3D V6 needs a continuous 100% fan blowing across it to ensure no heat-creep from the heater-block, otherwise you get soft filament and jamming issues in the heatsink. Some driver board and casing cooling fans are temperature controlled to reduce noise when the system is running cool, getting faster as the system heats up.
    As long as the 12V supply from the printer is constant, and provides sufficient current for the fan, you should be able to use it.
     

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