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Church wall end piece problem

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  • #172882
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    Fenriswolf
    Participant

    I have been printing the Church Wall pieces this weekend and I am unable to get the two end pieces (Church Wall End v1.2 and Church Wall Ruin End v1.2) to print properly. I have printed all of the other pieces without issues.

    The two end pieces get to the final stage (approximately 95% done) and the nozzle is finishing the top parts. This is where the weird behavior happens. The nozzle moves into part of the already printed model and ruins the piece. Sometimes the wall end is knocked down. Sometimes the wall end gets lifted up and become stuck to the nozzle and it continues printing a blob into the hole made by the nozzle. Either way, the hot nozzle causes a tear into the piece. I have tested both end pieces and both fail around the same time. I have not been able to successfully print either piece. Any advice would be greatly appreciated.

    Printer: Ender 3
    Slicer: Cura v4.3.0
    Layer Height: 0.2mm
    Wall Thickness: 0.8mm
    Wall Line Count: 2
    Top/Bottom Thickness: 0.8mm
    Top Thickness: 1mm
    Top Layers: 5
    Bottom Thickness: 0.8mm
    Bottom Layers: 4
    Horizontal Expansion: 0mm
    Infill: 20%
    Infill Pattern: Grid
    Material: eSun 1.75mm PLA+ Pro
    Printing Temperature: 205
    Build Plate Temperature: 60
    Speed: 60 mm/s
    Travel – Z Hop When Retracted: Unchecked
    Cooling – Enable Print Cooling: Checked
    Fan Speed: 100%
    Support – Unchecked
    Build Plate Adhesion: Skirt

    *Cross posted in the Printable Scenery FB area

    #173457
    Sam Campbell
    Sam Campbell
    Keymaster

    I’d possibly look at checking your zhop when retracted and making sure you’re not over extruding.

    #173693
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    Jim Martin
    Participant

    Could be an adhesion issue. Might want to try using a brim.

    #173755
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    Fenriswolf
    Participant

    I will try to adjust the zhop setting. I don’t think it is an adhesion issue. I have successfully printed all of the other files without a single problem. When in the final stage of printing the two end pieces, the nozzle literally goes into an already printed area which either dislodges the piece or creates a spot where the filament comes out in a glob. Hard to explain, sorry. But thanks for the advice.

    #174059
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    Fenriswolf
    Participant

    I was printing them one at a time to figure out why I had a problem. Someone of FB recommended printing them four at a time but spacing them across the print bed. He figured that sometimes working on smaller pieces does not give the layers time to cool off and they lift up and hit the nozzle. He also recommended using a brim. I took his advice and was able to print off both versions of the wall ends. Thanks everyone.

    #174317
    Sam Campbell
    Sam Campbell
    Keymaster

    Great news!

    #174364
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    Jim Martin
    Participant

    Glad you got worked out.

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