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Das Filament hält nicht sicher auf dem Druckbett


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Posted · Das Filament hält nicht sicher auf dem Druckbett

Wenn das Filament nicht sicher auf dem Druckbett hält, an welcher Stellschraube mu ich drehen?

Das Filament ist angegeben mit 180-220°C Drucktemperatur

Im ersten Versuch mit diesem Filament hatte ich 60° Druckbett und 220° Drucktemperatur eingestellt, das Druckergebnis war endtäuschend

Im zweiten Versuch hatte ich 80° und 210°, das Ergebnis war schlechter

Bisher habe ich mit 60°C Druckbett gute Erfahrungen gemacht

Druckermodell: Anycubic Chiron

Filament: Renkforce PLA

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    Posted · Das Filament hält nicht sicher auf dem Druckbett

    60° für PLA ist gut, mehr ist schlecht.

    Wenn deine erste Schicht nicht hält, hat das meisten damit zu tun, dass der Abstand Bett Düs zu groß ist. Ich würde den Drucker nochmals Leveln und die Düse ein Stück näher zum Bett einstellen damit die erste Schicht. schön ins Druckbett gedrückt wird. 

     

    Ausserdem muss das Bett sauber und fettfrei sein.

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    Posted · Das Filament hält nicht sicher auf dem Druckbett

    Wenn du ein Blatt Papier nimmst und das zwischen Bett und Düse legst, dann solltest du ein wenig Reibung spüren wenn du das Blatt hin und her bewegst. Eher mehr als weniger. Wenn du hier auch nur einen Hauch zu viel Abstand hast, dann haftet dir die erste Schicht mehr richtig und dann kannst du machen was du willst.

     

    Ist schwer zu erklären, aber irgendwann bekommst du das Gefühl dafür. 

     

    Das Druckbett reinigst du am Besten mit Isopropyl Alkohol oder nur Wasser und Seife. Fensterreiniger könnten problematisch sein, wenn sie möglicherweise irgendwas enthalten was dann wieder am Bett haftet. 

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    Posted (edited) · Das Filament hält nicht sicher auf dem Druckbett

    I hope this translates OK.

    Here is a Gcode script to help you level the bed. It is written for a printer that has a build plate of 400 X 400. It uses the Marlin "M0" to pause. If your build plate is smaller than 400 x 400 (what I found on the internet for a Chiron) DO NOT RUN THIS without first changing the numbers as described below or it will hit the end stops hard.

    If you are leveling with the nozzle cold, make sure there is no plastic hanging from the nozzle.

    • Copy and paste the code into a text file.
    • Save the file as "Leveling.gcode".
    • Copy the file to your SD / TF memory card.
    • Insert the card into the printer, refresh the file list, and print the file.
    • The printer will move to the first position and pause. While it is moving slide the piece of paper into position under the nozzle.
    • Adjust the leveling screw closest to the print head until you feel the nozzle drag on the paper (this is what Smithy is talking about. It takes a bit of practice to get "the feel".) To make it tighter, turn clock-wise and to make it looser turn Counter-Clock-Wise.
    • Then click on the button on the LCD to resume and the print head will move to the second position.
    • This piece of code will make two circuits around the build plate (pausing near each corner) so you can double check your leveling.

    This code describes a square from X25 Y25, to X25 Y375 to X375 Y375 to X375 Y25 and back to X25 Y25. You can adjust all the 25's and 375's and make the print head move the positions of your choice. It is best to perform leveling with the nozzle directly above each leveling screw.

    Prior to actually printing, both the build plate and the nozzle should be at printing temperature. For practicing, it doesn't matter.

    If you are still having trouble you can use a light coat of super hold hairspray on the build surface, or increase the flow to insure there is good squish of the plastic to the build surface.

     

    ; Start of Gcode
    G28; Home the print head
    G0 F5000 Z10; Move up
    G0 X25 Y25 F6000; Move to first position
    G0 F500 Z0; Move down
    M0; Pause
    G0 F5000 Z10
    G0 X25 Y375 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X375 Y375 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X375 Y25 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X25 Y25 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X25 Y375 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X375 Y375 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X375 Y25 F6000
    G0 F500 Z0
    M0
    G0 F5000 Z10
    G0 X25 Y25 F6000
    G0 F500 Z0
    M400; Finish all moves
    M84 XY; disable the X and Y stepper motors
    M117 End of Leveling Print; Send a message to the LCD
    ; End of Gcode

     

     

    Edited by GregValiant
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