qystan

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.

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