Gcode for extruding

[Bo Herrmannsen]

Hi

I have been looking for gcode that extrudes a given length of filament

What i want to is to prime a bit more than the brim arround the object

so just before it starts printing i want to extrude maybe 5mm or what i find is a good number


i plan to put this in the custom gcode section


/bo

[barnaby]

Slic3r has a setting for a fixed length skirt for this purpose
(measured in post hot-end filament rather then pre though).

But you did need to do this manually:

G91 ;relative movement
G1 E5 F300 ;extrude 5mm at 300mm/min
G90 ;absolute movement

You can always see what Printrun is doing via the Debug g-code option.

[daprigoo]

I would guess it is G2 Exxx where xxx is the length in mm.

[barnaby]

On 2013-11-28 14:40, daprigoo wrote:
> I would guess it is G2 Exxx where xxx is the length in mm.

G2 is for arcs (we really should get these working in Slic3r!)