[Cura 14.03 skirt problem]

Daid,

You, sir, are brilliant! The G92 E0 worked like a charm. BIG BIG thanks! Problem solved.

 

[Cura 14.03 skirt problem]

Thanks for the reply, Daid.

My starting and ending gcode is identical on all slicers that I've tried. Here's what I have in Cura right now.

Starting:

 

;Sliced at: {day} {date} {time}
;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
;Print time: {print_time}
;Filament used: {filament_amount}m {filament_weight}g
;Filament cost: {filament_cost}
;M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line
;M109 S{print_temperature} ;Uncomment to add your own temperature line
;G21        ;metric values
;G90        ;absolute positioning
;M82        ;set extruder to absolute mode
;M107       ;start with the fan off
;G28 X0 Y0  ;move X/Y to min endstops
;G28 Z0     ;move Z to min endstops
;G1 Z15.0 F{travel_speed} ;move the platform down 15mm
;G92 E0                  ;zero the extruded length
;G1 F200 E3              ;extrude 3mm of feed stock
;G92 E0                  ;zero the extruded length again
;G1 F{travel_speed}
;Put printing message on LCD screen
;M117 Printing...
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
G28 ; home all axes
; ***start of purge line***
;M320 acceleration enabled for all commands that follow (DISABLED TEMPORARILY)
;M201 X850 Y850 Z200 E10000; limit acceleration (ENABLED TEMPORARILY)
G1 Z0.2 F6000.000; move to first layer height
G1 X90 Y-90 F10000.000; move to front of build plate
G1 X-90 Y-90 E24 F1000.000; extrude a purge line on the build plate
G4 P2000; wait for ooze to slow
G1 Z0.0 F6000.000; lower nozzle height to bed
G1 X-90; wipe nozzle
G1 Z0.2 F6000.000; move to first layer height
G1 F10000; ensure fast travel to first print move
; *** end of purge line***

Ending:

 

;End GCode
;M104 S0                     ;extruder heater off
;M140 S0                     ;heated bed heater off (if you have it)
;G91                                    ;relative positioning
;G1 E-1 F300                            ;retract the filament a bit before lifting the nozzle, to release some of the pressure
;G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more
;G28 X0 Y0                              ;move X/Y to min endstops, so the head is out of the way
;M84                         ;steppers off
;G90                         ;absolute positioning
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;####Rostock Max####
M104 S0 ; turn off temperature
M140 S0
G28 ; home X axis
M84 ; disable motors
M106 S0; turn off cooling fan if on (M106 S255 = 100% on)

You'll notice from the starting gcode that I try to run an "anchor" line across my plate to help purge filament before I run the skirt and then my part. I understand it isn't necessary but it's a little extra purge.

 

[Cura 14.03 skirt problem]

I have this very same problem on my Rostock Max v2 but I'm unable to fix it. My printer just refuses to lay down a skirt before my print starts. It's like my extruder is starving for filament. Right now I have to play games with it if I want to use Cura (which I really like Cura by the way). Basically I run my skirt about 20mm outside of my part and run about 6 or 7 paths. By the time it finishes the skirt I've just barely squeaked out some filament and my print begins. This behavior doesn't happen if I use Simply3D, Slic3r, or MatterControl's Cura engine. It has me baffled. Once the actual print begins I get wonderful results. This issue is the only thing keeping me from running Cura on a regular basis.