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Nozzle keep blocking


Kathy7

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Posted · Nozzle keep blocking

Hi, I bought Ultimaker 2 about one year. Recently, I found the nozzle blocked more often than before.

And every times I pull out the bowden tube, the shape of PLA filament is look like the following img.

Is it because the wrong temperature or other problem?

temperature: 215°C

nozzle.jpg.5449d6648aa0c141687062509d8c92a8.jpg

nozzle.jpg.5449d6648aa0c141687062509d8c92a8.jpg

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    Posted · Nozzle keep blocking

    Hi and welcome to the forum!

    Have you checked your Teflon coupler? How many hours of printing to you have?

     

    I print about 7 hours and stock at 6 hours

    I did some adjustment, it seems worked. I put the 3D models closer and "print all at once"

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    Posted · Nozzle keep blocking

    yea thats.. way past the life cycle of the ptfe insulator.

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