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Loading filament for single color printing  

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mhackney
(@mhackney)
Eminent Member
Loading filament for single color printing

I know how to select the extruder (1 - 4) using the menus and I know how to load a single extruder. However, this loading assumes MM printing so it does not push the filament all the way to the nozzle. So I have been manually jogging the extruder until filament is extruded and then starting the print. Is this the way to do it or is there a feature or technique to simplify this?

cheers,
Michael

Musings and Experiments on the Art and Science of 3D Printing
Postato : 22/06/2017 11:07 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: Loading filament for single color printing

Michael

KISS is your friend here...

Start GCode will do the tool selection, loading and purging; end GCode will do the unloading.

Start:

; Prefix G-Code
T<EXT+0>
M201 X1500 Y1500 E900 ; set default acceleration
M301 P23.14 I1.78 D75.12 ; set PD for extruder heater - specific for my printer
M304 P56.09 I2.39 D328.54 ; set PID for bed heater - specific for my printer
G21 ; set units to millimeters
G90 ; use absolute coordinates
M83 ; use relative distances for extrusion
M140 S<BED> ; Heat the bed
M104 S170
M190 S<BED> ; Heat the bed and wait
M109 S170
G28 W
M104 S<TEMP>
G80 a-100 b50 c150 d90 e135 f40 g0 h-70 ; specific for my printer
M109 S<TEMP>
G92 E0.0
G1 Y-3 Z0.250 F7200.000
G1 X50.0 E75.0 F1000.0
G1 X160.0 E10.0 F1000.0
G1 X220.0 E6 F1000.0
G1 X240.0 E2 F1000.0
G1 Y-1.
G1 X40 E15 F1000
G1 X0 E2 F1000.0
G1 E-4 F4800
G92 E0.0

End:

; Postfix GCode

G1 Z<Z+1.0> E-4 F7200 ; Lift and retract
G1 X0 Y200 F3600 ; move bed for easy removal
G1 E12 F2100 ; unload filament
G1 E-80 F5000
G1 E-5 F3500
G1 E-5 F2400
G1 E-2 F1000
G1 E10 F300
G1 E-10 F300
G1 E10 F600
G1 E-10 F600
G1 E10 F900
G1 E-10 F900
G1 E15 F1200
G1 E-15 F1200
G1 E5 F600
G4 S1 ; pause 1 second
M107 ; turn off fan
M104 S0 ; turn off temperature
M140 S0 ; turn off heatbed
M84 ; disable motors

I think you can do similar in Slic3r, but I never got that far...

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Postato : 22/06/2017 11:12 pm
Dan
 Dan
(@dan-2)
Eminent Member
Re: Loading filament for single color printing


I know how to select the extruder (1 - 4) using the menus and I know how to load a single extruder. However, this loading assumes MM printing so it does not push the filament all the way to the nozzle. So I have been manually jogging the extruder until filament is extruded and then starting the print. Is this the way to do it or is there a feature or technique to simplify this?

cheers,
Michael

Dear Michael,

have you been able to solve your manually jogging issue?

Postato : 28/08/2017 11:21 am
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: Loading filament for single color printing


have you been able to solve your manually jogging issue?

Just select the correct profile in your slicer.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Postato : 28/08/2017 12:39 pm
Dan
 Dan
(@dan-2)
Eminent Member
Re: Loading filament for single color printing



have you been able to solve your manually jogging issue?

Just select the correct profile in your slicer.

Peter
That won't do the job. The loading procedure Feeds the Filament into the the steel tubes in the multiplexer only. Thus in General I Need an extra 100 mm+ to start Extrusion. Your start script does its job (Thanks for that, not tried the step by step end script yet), as soon as I made manually sure that I have constant extrusion capabilities.

best
Dan

Postato : 28/08/2017 2:30 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: Loading filament for single color printing

Dan

Slic3r should do exactly the same if you select the correct profile.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Postato : 28/08/2017 3:16 pm
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