purge left ff creator pro

[stewslash]

Ive recently got a ff creator pro and have been only really using the right extruder , this purges off the bed to the right then starts to print , thats all good
But now I've started to use the left extruder id like to setup another FFF profile ,I've started using the left extruder for ABS and right for PLA, what i really need to know is what do i enter into the script to purge the left nozzle off the left hand side of the bed because at the moment its not purging at all , this is my script
; **** Replicator 1 dual start.gcode ****
M73 P0 ; enable build progress
G162 X Y F3000 ; home XY maximum
G161 Z F1200 ; home Z minimum
G92 Z-5 ; set Z to -5
G1 Z0 ; move Z to 0
G161 Z F100 ; home Z slowly
M132 X Y Z A B ; recall home offsets
M135 T0 ; load right extruder offsets
G1 X150 Y-70 Z30 F9000 ; move to wait position right hand side of the table
G130 X20 Y20 Z20 A20 B20 ; lower stepper Vrefs while heating
M126 S[fan_speed_pwm]
M140 S[bed0_temperature] T0
M134 T0 ; stabilize bed temperature
M104 S[extruder1_temperature] T1
M133 T1 ; stabilize left extruder temperature
G130 X127 Y127 Z40 A127 B127 ; default stepper Vrefs
G92 A0 B0 ; zero extruders
G1 Z0.4 ; position nozzle
M135 T1 ; left tool
G1 X120 Y-70 Z0.15 F1200 ; slow wipe
G1 X110 Y-70 Z0.5 F1200 ; lift
G92 A0 B0 ; zero extruders
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****

[Jamien]

I was actually looking at this on the weekend because I too have just started using the left extruder.

There are 3 lines that set the location of the extruder:

G1 X150 Y-70 Z30 F9000 ; move to wait position right hand side of the table
...
G1 X120 Y-70 Z0.15 F1200 ; slow wipe
G1 X110 Y-70 Z0.5 F1200 ; lift

If you change the X value it will change the position of the extruder.
You could try making them negative values, except the first one. I did that ... and it tries to move the head further on the X axis than physically possible.
I'm not exactly sure how to measure the correct X values for this, so you could just do some trial and error?

Do you find when yours is purging the right one it releases a stream off the bed then makes a small blob of filament, wipes it through the blob then starts printing?

[stewslash]

Do you find when yours is purging the right one it releases a stream off the bed then makes a small blob of filament, wipes it through the blob then starts printing?

Yes
When purging the right extruder it starts purging off the bed to the right then slowly moves on to the bed and wipes over itself which is fine , when I first used the left extruder it purged in the same position but but creating a blob on the bed because the left ex can't miss the bed when in the front right corner , I haven't really used the right ex because of this

il will have a little play around with what you suggested and see if I can sort it out thanks!

[stewslash]

Ive just got a reply from another forum and this script sorts it all out = purging left extruder off left hand side of the bed


; **** Replicator 1 dual start.gcode ****M73 P0 ; enable build progress
G162 X Y F3000 ; home XY maximum
G161 Z F1200 ; home Z minimum
G92 Z-5 ; set Z to -5
G1 Z0 ; move Z to 0
G161 Z F100 ; home Z slowly
M132 X Y Z A B ; recall home offsets
M135 T0 ; load right extruder offsets
G1 X-125 Y-70 Z30 F9000 ; move to wait position left hand side off table
G130 X20 Y20 Z20 A20 B20 ; lower stepper Vrefs while heating
M126 S[fan_speed_pwm]
M140 S[bed0_temperature] T0
M134 T0 ; stabilize bed temperature
M104 S[extruder1_temperature] T1
M133 T1 ; stabilize left extruder temperature
G130 X127 Y127 Z40 A127 B127 ; default stepper Vrefs
G92 A0 B0 ; zero extruders
G1 Z0.4 ; position nozzle
M135 T1 ; left tool
G1 X-110 Y-70 E30 F300 ; move nozzle
G1 X-120 Y-70 Z0.15 F1200 ; slow wipe
G1 X-110 Y-70 Z0.5 F1200 ; lift
G92 A0 B0 ; zero extruders
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****

[Jamien]

Thanks for posting this, using it on mine now and it's working wonderfully!

[mananee]

good

[highground]

CAUTION!!!!!

If you have a newer FFCP with the extra fan on the left hand side of the carriage, this will hit the fan against the case with those settings above!!

These are the scripts I use for my extruders (individually listed below) - this also includes moving the wipe back a little as I have a glass bed - the wipe used to be on the glass support corners. (Changed Y-70 to Y-40 if you want to change it back..)


LEFT EXTRUDER

; **** Replicator 1 dual start.gcode ****M73 P0 ; enable build progress
G162 X Y F3000 ; home XY maximum
G161 Z F1200 ; home Z minimum
G92 Z-5 ; set Z to -5
G1 Z0 ; move Z to 0
G161 Z F100 ; home Z slowly
M132 X Y Z A B ; recall home offsets
M135 T0 ; load right extruder offsets
G1 X-117 Y-40 Z30 F9000 ; move to wait position left hand side off table
G130 X20 Y20 Z20 A20 B20 ; lower stepper Vrefs while heating
M126 S[fan_speed_pwm]
M140 S[bed0_temperature] T0
M134 T0 ; stabilize bed temperature
M104 S[extruder1_temperature] T1
M133 T1 ; stabilize left extruder temperature
G130 X127 Y127 Z40 A127 B127 ; default stepper Vrefs
G92 A0 B0 ; zero extruders
G1 Z0.4 ; position nozzle
M135 T1 ; left tool
G1 X-108 Y-40 E30 F300 ; move nozzle
G1 X-117 Y-40 Z0.15 F1200 ; slow wipe
G1 X-108 Y-40 Z0.5 F1200 ; lift
G92 A0 B0 ; zero extruders
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****



RIGHT EXTRUDER

; **** Replicator 1 dual start.gcode ****
M73 P0 ; enable build progress
G162 X Y F3000 ; home XY maximum
G161 Z F1200 ; home Z minimum
G92 Z-5 ; set Z to -5
G1 Z0 ; move Z to 0
G161 Z F100 ; home Z slowly
M132 X Y Z A B ; recall home offsets
M135 T0 ; load right extruder offsets
G1 X150 Y-40 Z30 F9000 ; move to wait position right hand side of the table
G130 X20 Y20 Z20 A20 B20 ; lower stepper Vrefs while heating
M126 S[fan_speed_pwm]
M140 S[bed0_temperature] T0
M134 T0 ; stabilize bed temperature
M104 S[extruder0_temperature] T0
M133 T0 ; stabilize right extruder temperature
G130 X127 Y127 Z40 A127 B127 ; default stepper Vrefs
G92 A0 B0 ; zero extruders
G1 Z0.4 ; position nozzle
G1 X110 Y-40 E25 F300 ; purge nozzle
G1 X120 Y-40 Z0.15 F1200 ; slow wipe
G1 X110 Y-40 Z0.5 F1200 ; lift
G92 A0 B0 ; zero extruders
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****