Why ist the v6 so long?

Discussion in 'General' started by strangebob, May 13, 2015.

  1. strangebob

    strangebob Member

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    I was wondering, why the v6 isn't shorter. Even the lowest ribs always stay cool. Couldn't one make the hotend shorter by removing half of the upper cooling fins? I guess that would make the action more direct as it gets close to the extruder...
     
  2. elmoret

    elmoret Administrator

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    The upper fins are cool *because* they're there. If you make it much shorter, the heatbreak will get too warm for PLA and you'll run into jamming issues.
     
  3. strangebob

    strangebob Member

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  4. Mike Kelly

    Mike Kelly Volunteer

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    Those use a larger 40mm fan that cools a heatsink. The heatsink is thermally conductive to the stepper motor and extruder. Both of these components also act like less efficient heatsinks. They tend to get pretty hot as a result.
     
  5. elmoret

    elmoret Administrator

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    Correct, you can see the heatsink on the left side of the photo you linked.

    They also either have PTFE liners (thus limiting the temperature) and therefore aren't all metal, or if they don't then they don't have good PLA performance. Speaking from experience.
     

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