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Answered Cold Pull as Regular Maintenance?

Discussion in 'Troubleshooting' started by mithander, Dec 9, 2018.

  1. mithander

    mithander New Member

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    Sorry if this has been asked before but I am new to the forum and couldn't find this exact question when searching. I recently had to clear a partially blocked nozzle using several "cold pulls" following instructions online using PLA at 150C. Now I am trying to do all I can to avoid future blockages and resulting failed prints and filament grinding which makes a huge mess. My question is, if a cold pull is such a good method to clear debris out of the nozzle, why is it not recommended to do it regularly? There is a sticker on my Robo proclaiming "Attention! Extruder Above 185C to LOAD and UNLOAD" I would happily unload at 150C after every print to help clear debris out of the nozzle, if it wasn't contraindicated by the sticker. Why is this not recommended?
     
    #1 mithander, Dec 9, 2018
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    #2 mark tomlinson, Dec 9, 2018
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  3. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Cold pulls work very well for filaments with stuff in it, like glitter, carbon fiber bits, wood shavings, etc. All the instructions I have seen suggest using nylon filaments as your cold pull filament choice. The cold pull helps pick those bits out of the nozzle. But for just PLA like @mark tomlinson mentions, seasoning is the best thing you can do and it is super easy.
     
    #3 WheresWaldo, Dec 10, 2018
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