E-10 at Start of Print

[qystan 0]

Below is an extract of the GCODE file. 

 

The E-10 at line 5 creates an empty print before the filament  arrive at the nozzle.  The value of 10 follows the Retraction Distance in the Travel menu.  Am I missing a setting that 'restores' the filament to the nozzle or removes this?

 

Note: Retract at layer change is set to OFF.

 

M117 Printing...
G5
G92 E0
G92 E0
G1 F1500 E-10
;LAYER_COUNT:239
;LAYER:0
M106 S255
G1 F1500 Z0.375
G0 F3600 X86.384 Y135.111 Z0.375
;TYPE:SKIRT
G1 F1500 Z0.3
G1 F1500 E0
G1 X86.723 Y134.911 E0.01964

[GregValiant 1,320]

That is a lot of retraction.  The line is there to work with the later line G1 F1500 E0 and provide a prime, but it often isn't enough to bring the pressure up in the melting area of the nozzle.

I use the Search and Replace plugin.  Search for "G1 F1500 E-10" and replace with "G92 E-10".  It will leave a puddle when it starts extruding, but it will start extruding right away.  Going to less of a reset (like G92 E-5) will make the puddle smaller.

[qystan 0]

Ah, thanks for the explanation.  I misunderstood E0 to be just resetting the counter. 

 

Problem is that Cura inserts the G1 F1500 E-xx, having to edit the generated file every time isn't very exciting.  

 

Will try G92 and lower retract values.  Thanks again.