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  1. #1
    Student
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    Mar 2016
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    Düsseldorf
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    Question ABS extrudes "zig zag" MBREP2

    Hi,

    I own a Makerbot Replicator 2 and upgraded it with an aluminium heatbed with glas plattform, a hood and acrilic "windows".
    When I use PLA everything works fine, but today I used ABS for the first time and got a strange "zig zag" pattern.
    After about a minute it extrudes normal again. I tried out different heating settings, but couldn't figure out why this happens.
    My settings:
    Extruder 225C
    Platform 100C
    Has anyone experienced this before?

    Thank you,
    Thomas
    IMG_6771.jpg

  2. #2
    Technician
    Join Date
    Mar 2015
    Location
    Slovenia, Europe
    Posts
    76
    Howdy
    this "zig zag" pattern happen when there is not sufficient tension inside nozzle.
    Filament load before print usualy solve this issue.

  3. #3
    Super Moderator Geoff's Avatar
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    Nov 2013
    Location
    NSW, Australia
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    1,824
    Add Geoff on Thingiverse
    Quote Originally Posted by Scrapenbaker View Post
    Hi,

    I own a Makerbot Replicator 2 and upgraded it with an aluminium heatbed with glas plattform, a hood and acrilic "windows".
    When I use PLA everything works fine, but today I used ABS for the first time and got a strange "zig zag" pattern.
    After about a minute it extrudes normal again. I tried out different heating settings, but couldn't figure out why this happens.
    My settings:
    Extruder 225C
    Platform 100C
    Has anyone experienced this before?

    Thank you,
    Thomas
    IMG_6771.jpg


    Flat parts = level build plate.
    Curly parts = not level built plate

    Level build plate again - don't use business card, use paper.

    The nozzle not close enough to the bed.
    Hex3D - 3D Printing and Design http://www.hex3d.com

  4. #4
    Student
    Join Date
    Mar 2016
    Location
    Düsseldorf
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    Quote Originally Posted by Geoff View Post
    Flat parts = level build plate.
    Curly parts = not level built plate

    Level build plate again - don't use business card, use paper.

    The nozzle not close enough to the bed.
    Thanks for the answer!
    It was the leveling, because I leveled the plattform like I was used to when it was cold, but the springs underneath the plattform seem to change due to the thermal change of the new heating bed. So the hot building plattform was suddenly far away from the nozzle. After leveling it with the hot plattform it works now

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