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Extruder GCODE help

Posted: Wed May 13, 2015 11:41 pm
by fmeroney
Hi All,
Having some Gcode issues.

What I'm trying to do is purge both extruders on my MakerGear M2... however before I keep wasting PLA, let me ask you guys/girls what I'm doing wrong.

Starting script:::
M108 S255 ; turn on M2 fans
G28 ; home all axes
G1 Y50 Z0.3 F9600 ; move forward to avoid binder clips
G1 X209 Z10 ; move off platform
G1 Z0.4 ; position nozzle
G92 E0 ; zero extruder
G1 E25 F225 ; purge E0 nozzle
T1 ; Change to Extruder E1 (T1)
G1 E25 F225 ; purge E1 nozzle
T0 ; Change to Extruder E0 (T0)
G92 E0 ; zero extruder
G1 X190 Z0.1 E1.0 F1200 ; slow wipe
G1 X180 Z0.25 ; lift

So what it's doing is only purging Extruder 1.. doesn't do much anything else, then starts the print

Re: Extruder GCODE help

Posted: Wed May 13, 2015 11:55 pm
by BaudR8
After T1 and before the purge, do a G92 E0 (zero E value), otherwise it's trying to go to E25 from E25 (no movement)

Re: Extruder GCODE help

Posted: Thu May 14, 2015 12:00 am
by fmeroney
BaudR8 wrote:After T1 and before the purge, do a G92 E0 (zero E value), otherwise it's trying to go to E25 from E25 (no movement)
Great, let me give that a go!

Thanks,

Re: Extruder GCODE help

Posted: Sat May 16, 2015 6:22 pm
by fmeroney
Didn't work, however I did get it to function.

Thanks!
BaudR8 wrote:After T1 and before the purge, do a G92 E0 (zero E value), otherwise it's trying to go to E25 from E25 (no movement)

Re: Extruder GCODE help

Posted: Mon May 18, 2015 4:56 am
by Rebekah_harper
hiya,

it didnt' work but you got it to function?

does that mean you got both nozzles to purge? if so could you share your solution as I would like to be able to do the same.

cheers

becky

Re: Extruder GCODE help

Posted: Mon May 18, 2015 2:34 pm
by DarthRevan
This should work :D :

Code: Select all

M108 S255 ; turn on M2 fans
G28 ; home all axes
T0
G1 Y50 Z0.3 F9600 ; move forward to avoid binder clips
G1 X205 Z10 ; move off platform
G1 Z0.4 ; position nozzle
G92 E0 ; zero extruder
G1 E25 F225 ; purge nozzle
G92 E0 ; zero extruder
; Begin Additional Purge
T1
G92 E0 ; zero extruder
G1 E25 F225 ; purge nozzle
G92 E0 ; zero extruder
T0
; End Additional Purge
G1 X190 Z0.1 E1.0 F1200 ; slow wipe
G1 X180 Z0.25 ; lift
Rebekah_harper wrote:hiya,

it didnt' work but you got it to function?

does that mean you got both nozzles to purge? if so could you share your solution as I would like to be able to do the same.

cheers

becky