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Mehrfarbiger Druck funktioniert nur im ersten Layer


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Posted · Mehrfarbiger Druck funktioniert nur im ersten Layer



Ich habe eine Ender 5 Plus und habe diesen umgebaut auf eine 2-1 Hotend. Ich habe Marlin umgeschrieben und einen "Purge Bucket" erstellt.

Soweit so gut.

Der erste Layer funktioniert auch.

Startcode Extruder 1 + 2

; Start Extruder 1

G1 X220 F6000 ; Xpos Purge

G1 Y375 F6000 ; Ypos Porge

G92 E0 ; set Extruder to 0

G1 E90 F1800 ; load fillament

G92 E0 ; set Extruder to 0

G1 E30 F180 ; clean Nozzle

G92 E0 ; set Extruder to 0

G1 F1200 E-6.5; retract for Move

G92 E0 ; set Extruder to 0

G0 F10000 ; Increase feed rate before next travel.


Endcode Extruder 1+2


G92 E0

G1 E-6.5 F1000


G1 X220 F6000

G1 Y375 F6000

G1 E-80 F4000

G92 E0

G0 F10000 ; Increase feed rate before next travel.


nun generiert Cura 4.5

..... ab Zeile 42

G0 F10000 ; Increase feed rate before next travel.
G92 E0
G1 F1500 E-6.5
G4 P1
G0 F6000 X179.318 Y195.298 Z0.2


Farbwechsel Layer 1:

---- ab Zeile 3180

G0 F10000 ; Increase feed rate before next travel.
M109 S185
G1 F1500 E-6.5


Das passt ja noch.

Aber sobald er Layer 2 druckt:

.... ab Zeile 3736

G0 F10000 ; Increase feed rate before next travel.
M109 S185
G1 F1200 E9.5 <--------- Warum nun eine Extrusion um 9.5 mm und kein Retract wie vorher ????

--- ab Zeile 4695

G0 F10000 ; Increase feed rate before next travel.
M109 S185
G1 F1200 E9.5 <-------- und so geht es weiter bis an das Ende.


Somit fährt der Drucker über den Abstreifer und legt mir eine Fillamentspur ab.


Kann mir bitte einer sagen warum ????


Vielen Dank







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    Posted · Mehrfarbiger Druck funktioniert nur im ersten Layer


    Habe heute den Fehler gefunden: 


    G1 F1200 E9.5
    G1 F300 Z0.68
    G0 F9000 X199.131 Y252.384
    G0 X198.527 Y250.691
    G1 F1500 E16


    Das ist ein Auszug von Zeile 4699 - 4705


    Eingestellt war Retract 6.5mm und Düsenschalter Einzugsabstand 16

    In der Zeile 4705 macht er eine Extrusion auf 16.

    Wenn man dann den Retract abzieht ergibt das genau diese Extrusion von 9.5.

    Dahinter gekommen bin ich durch:

    Ich habe ein Search und Replace  in Cura eingestellt, das er genau diese Zeile ersetzt durch ;removed

    Ich drucke gerade noch was aus, aber ich habe das festgestellt, als mir der Purge block weggebrochen ist. Denn dann konnte ich sehen:

    Das er jetzt zwar keine Extrusion mehr macht beim "rausfahen" macht sonder dann gleich eine große/schnelle Extrusion  wo der Purge Block ist. Ist ja klar dann macht er von E=0 auf E=16.


    Ich habe nun diesen Wert bei beiden Extrudern auf 0 gesetzt. Der GCode schaut nun gut aus, werde es heute am abend noch testen.

    Gcode Neu:

    G1 F2100 E-6.5
    G1 F300 Z0.88
    G0 F9000 X208.65 Y250.445 Z0.88
    G0 X207.44 Y250.149
    G1 F300 Z0.68
    G1 F2100 E0


    lg und danke

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