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Add G92 E0  

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Pez
 Pez
(@pez-4)
New Member
Add G92 E0

"Relative extruder addressing requires resetting the extruder position at each layer to prevent the loss of floating point accuracy. Add "G92 E0" to layer_gcode."

Updated Prusaslicer and now I get that message. Why and how can I get rid of it?

Veröffentlicht : 25/03/2022 11:51 pm
Justin und gefällt das
towlerg
(@towlerg)
Noble Member
RE: Add G92 E0

Can you post the Custom Start G-Code fro the Printer setting?

Veröffentlicht : 26/03/2022 12:39 pm
Pez
 Pez
(@pez-4)
New Member
Themenstarter answered:
RE: Add G92 E0

M83  ; extruder relative mode

M140 S[first_layer_bed_temperature] ; set bed temp

M109 S160 ; Set extruder temp before bed level

M190 S[first_layer_bed_temperature] ; wait for bed temp

G28 W ; home all without mesh bed levelG80 ; mesh bed leveling

M109 S[first_layer_temperature] ; wait for extruder temp

M221 S100 ; Set flow to 100

G1 Y-3.0 F1000.0 ; go outside print area

G92 E0.0

G1 E8 ; Purge Bubble

G1 X60.0 E9.0  F1000.0 ; intro line

G1 X100.0 E12.5  F1000.0 ; intro line

G92 E0.0

Veröffentlicht : 26/03/2022 4:34 pm
Justin gefällt das
maredacek
(@maredacek)
New Member
RE: Add G92 E0

M201 X500 Y500 Z100 E5000 ; sets maximum accelerations, mm/sec^2M203 X500 Y500 Z5 E25 ; sets maximum feedrates, mm/secM204 S500 T500 ; sets acceleration (S) and retract acceleration (T)M205 X10 Y10 Z0.3 E5.0 ; sets the jerk limits, mm/secM205 S0 T0 ; sets the minimum extruding and travel feed rate, mm/sec

M117 Heating... ;Put printing message on LCD screen;M300 S2500 P100; BeepM221 S{if layer_height<0.075}100{else}94{endif} ; Set flowM104 S[first_layer_temperature] ; set extruder temp

;G1 Z50 ; this is a good start heating positionG28 X Y; Home X YG1 Y10 ; this is a good start heating positionM84 ; disable motors

M109 S[first_layer_temperature] ; wait for extruder tempM140 S[first_layer_bed_temperature] ; set bed temp

; Auto LevelingM280 P0 S160 ; BLTouch alarm releaseG4 P100 ; delay for BLTouchG28 ; home

;M500 ; ONLY UNCOMMENT THIS IF BED LEVELING WITH BLTOUCH REMOVE;M420 S1 ; Load Saved Eeprom From Auto Level

M190 S[first_layer_bed_temperature] ; wait for bed tempG29 ; auto bed leveling ONLY UNCOMMENT THIS IF BED LEVELING WITH BLTOUCH REMOVE; Start of printG21; metric valuesG90 ; absolute positioningM82; set extruder to absolute mode

; Prepare nozzle;G91;;G92 E0 ; Set extrusion distance to 0;G1 F1800 E3;;G92 E0 ; Set extrusion distance to 0G90;

; You may want to adjust the X and Y here so the nozzle is really above the bed!G1 X5 Y18 F7200 ; Move to a position in the left front of the bedG1 Z0.6; Move nozzle above 0.6 mm of the bed

G91 ; Use relative mode; Make some jerky zick-zack move at the beginning; This is supposed to get rid of residue at the nozzle;G1 X1.0 Y5.0 Z-0.1 E-1.0 F7200 ; X6 Y10 Z0.1, retract a tiny bit / 120mm/s;G1 X1.0 Y-5.0 Z0.1 E2.0 F7200 ; X7 Y5 Z0.2 extrude a tiny bit;G1 X2.0 Y5.0 Z-0.1 F7200 ; X9 Y10 Z0.1;G1 X2.0 Y-5.0 Z0.1 F7200 ; X11 Y5 Z0.2;G1 X2.0 Y5.0 F7200 ; X13 Y10;G1 X2.0 Y-5.0 F7200 ; X15 Y5

; now print a line of filament to prepare extrusionG1 X200 E40 F1000 ; prints a line in the front

; Done with the dancing :)G92 E0 ; Set extrusion distance to 0G90 ; switch back to absolute mode

M117 Printing... ;Put printing message on LCD screen; Start of actual GCode for the print

Veröffentlicht : 26/03/2022 9:51 pm
maredacek
(@maredacek)
New Member
RE: Add G92 E0

 

Posted by: @maredacek

M201 X500 Y500 Z100 E5000 ; sets maximum accelerations, mm/sec^2M203 X500 Y500 Z5 E25 ; sets maximum feedrates, mm/secM204 S500 T500 ; sets acceleration (S) and retract acceleration (T)M205 X10 Y10 Z0.3 E5.0 ; sets the jerk limits, mm/secM205 S0 T0 ; sets the minimum extruding and travel feed rate, mm/sec

M117 Heating... ;Put printing message on LCD screen;M300 S2500 P100; BeepM221 S{if layer_height<0.075}100{else}94{endif} ; Set flowM104 S[first_layer_temperature] ; set extruder temp

;G1 Z50 ; this is a good start heating positionG28 X Y; Home X YG1 Y10 ; this is a good start heating positionM84 ; disable motors

M109 S[first_layer_temperature] ; wait for extruder tempM140 S[first_layer_bed_temperature] ; set bed temp

; Auto LevelingM280 P0 S160 ; BLTouch alarm releaseG4 P100 ; delay for BLTouchG28 ; home

;M500 ; ONLY UNCOMMENT THIS IF BED LEVELING WITH BLTOUCH REMOVE;M420 S1 ; Load Saved Eeprom From Auto Level

M190 S[first_layer_bed_temperature] ; wait for bed tempG29 ; auto bed leveling ONLY UNCOMMENT THIS IF BED LEVELING WITH BLTOUCH REMOVE; Start of printG21; metric valuesG90 ; absolute positioningM82; set extruder to absolute mode

; Prepare nozzle;G91;;G92 E0 ; Set extrusion distance to 0;G1 F1800 E3;;G92 E0 ; Set extrusion distance to 0G90;

; You may want to adjust the X and Y here so the nozzle is really above the bed!G1 X5 Y18 F7200 ; Move to a position in the left front of the bedG1 Z0.6; Move nozzle above 0.6 mm of the bed

G91 ; Use relative mode; Make some jerky zick-zack move at the beginning; This is supposed to get rid of residue at the nozzle;G1 X1.0 Y5.0 Z-0.1 E-1.0 F7200 ; X6 Y10 Z0.1, retract a tiny bit / 120mm/s;G1 X1.0 Y-5.0 Z0.1 E2.0 F7200 ; X7 Y5 Z0.2 extrude a tiny bit;G1 X2.0 Y5.0 Z-0.1 F7200 ; X9 Y10 Z0.1;G1 X2.0 Y-5.0 Z0.1 F7200 ; X11 Y5 Z0.2;G1 X2.0 Y5.0 F7200 ; X13 Y10;G1 X2.0 Y-5.0 F7200 ; X15 Y5

; now print a line of filament to prepare extrusionG1 X200 E40 F1000 ; prints a line in the front

; Done with the dancing :)G92 E0 ; Set extrusion distance to 0G90 ; switch back to absolute mode

M117 Printing... ;Put printing message on LCD screen; Start of actual GCode for the print

Dobrý večer mám ten samý problém děkuji za odpověď

Veröffentlicht : 26/03/2022 9:56 pm
Timdaino
(@timdaino)
New Member
RE: Add G92 E0

 

Posted by: @pez-4

"Relative extruder addressing requires resetting the extruder position at each layer to prevent the loss of floating point accuracy. Add "G92 E0" to layer_gcode."

Updated Prusaslicer and now I get that message. Why and how can I get rid of it?

I had the same problem with my Bibo 2 printer. My Ender 3 didn't have the same problem when I switched machines in the software. What I found was that I needed to change the G-Code Flavor: from marlin to RepRap/ Sprinter as noted in my printer manual presets. Now it is working fine. * Note:  I had to do this for all the printing option as this printer is dual head. 

Veröffentlicht : 27/03/2022 3:04 am
towlerg
(@towlerg)
Noble Member
RE: Add G92 E0

 

Posted by: @pez-4

M83  ; extruder relative mode

M140 S[first_layer_bed_temperature] ; set bed temp

M109 S160 ; Set extruder temp before bed level

M190 S[first_layer_bed_temperature] ; wait for bed temp

G28 W ; home all without mesh bed levelG80 ; mesh bed leveling

M109 S[first_layer_temperature] ; wait for extruder temp

M221 S100 ; Set flow to 100

G1 Y-3.0 F1000.0 ; go outside print area

G92 E0.0

G1 E8 ; Purge Bubble

G1 X60.0 E9.0  F1000.0 ; intro line

G1 X100.0 E12.5  F1000.0 ; intro line

G92 E0.0

If you remove the M83 does the prusaslicer error message go away?  What printer are you using? Was the custom G-code created by Prusaslicer config wizard?

Veröffentlicht : 27/03/2022 10:51 am
Neophyl
(@neophyl)
Illustrious Member
RE: Add G92 E0

It was added as a check requirement in 2.4.1. Marlin firmware in relative mode due to its internal math needs the g92 code adding. Under printer in the custom gcode section add the line the message says to the before layer change box. The warning will go away as the extrusion count will then be reset between layers. All baseline Prusa’s which use MARLIN already have this in their profiles and have done for years. 

You could change the firmware flavour which deactivates the warning but if you are running marlin then you need that line in. Simple as.  You should always have the firmware flavour set to match what your printer is actually using. 

Veröffentlicht : 27/03/2022 11:28 am
towlerg
(@towlerg)
Noble Member
RE: Add G92 E0

It was added as a check requirement in 2.4.1. Marlin firmware in relative mode due to its internal math needs the g92 code adding.

I don't understand. What is a check requirement?

Veröffentlicht : 28/03/2022 10:40 am
Neophyl
(@neophyl)
Illustrious Member
RE: Add G92 E0

The line for G92 E0.0 is a requirement with certain firmware types, so there's now a check in for it.  

Veröffentlicht : 28/03/2022 11:01 am
Hemi345
(@hemi345)
New Member
RE: Add G92 E0

I just encountered this error message as well after updating to 2.4.1.  I have an Ender 3 Pro and have the print settings set to Marlin (legacy).  I don't think the error is pointing to the Custom G-code -> "Start G-code" section since the error message mentions "layer_gcode" and my Start G-code already has G92 E0 in it.  If I add G92 E0 to either the "Before layer change G-code" or "After layer change G-code", then I'm able to slice the model. I haven't actually tried to print anything yet, but that got the error message to go away.

Veröffentlicht : 28/03/2022 8:04 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Add G92 E0

Yes, as I posted above the line needs to go into the between layers section, either before or after layer change will do. Prusa profiles have it in the before layer change. 

Veröffentlicht : 28/03/2022 8:23 pm
Hemi345
(@hemi345)
New Member
RE: Add G92 E0

Also, I found the following quote in the release notes for 2.4.1-beta1.  Since gcode generated for Marlin legacy includes the M83 command for relative mode, then adding G92 E0 to "After layer change G-code" should take care of it.

FDM printer firmware usually keeps an absolute extruder axis position using a single precision float representation, which leads to a loss of accuracy if the extruder axis is not resetted regularly. In extruder absolute mode 'G92 E0 is issued at each retraction by PrusaSlicer, while in extruder relative mode it is newly enforced, that either layer_gcode or before_layer_gcode contains 'G92 E0'. On the other side, in extruder absolute mode, 'G92 E0' in layer change custom G-code breaks slicer's assumption leading to horrible over-extrusions, thus 'G92 E0' is newly tested for and prohibited with extruder absolute addressing #6336 #5073.

Veröffentlicht : 28/03/2022 8:25 pm
Hemi345
(@hemi345)
New Member
RE: Add G92 E0

 

Posted by: @neophyl

Yes, as I posted above the line needs to go into the between layers section, either before or after layer change will do. Prusa profiles have it in the before layer change. 

Sorry, I missed where you had mentioned this in the post above.  Maybe a later revision of PrusaSlicer can automatically do this for people upgrading from a previous version that does not have this requirement as the error message wasn't very helpful in determining what actually needs to be done.

Veröffentlicht : 28/03/2022 8:29 pm
Komitadjie
(@komitadjie)
Eminent Member
RE: Add G92 E0

 

Posted by: @hemi345

Also, I found the following quote in the release notes for 2.4.1-beta1.  Since gcode generated for Marlin legacy includes the M83 command for relative mode, then adding G92 E0 to "After layer change G-code" should take care of it.

FDM printer firmware usually keeps an absolute extruder axis position using a single precision float representation, which leads to a loss of accuracy if the extruder axis is not resetted regularly. In extruder absolute mode 'G92 E0 is issued at each retraction by PrusaSlicer, while in extruder relative mode it is newly enforced, that either layer_gcode or before_layer_gcode contains 'G92 E0'. On the other side, in extruder absolute mode, 'G92 E0' in layer change custom G-code breaks slicer's assumption leading to horrible over-extrusions, thus 'G92 E0' is newly tested for and prohibited with extruder absolute addressing #6336 #5073.

Cripes, thank you!  I updated my PrusaSlicer, and all of a sudden my printer just wouldn't friggin' work any more, after it'd worked great for a long time!  That fixed it immediately.  

Veröffentlicht : 02/04/2022 3:45 am
Gorm Gildberg Von Flittner
(@gorm-gildberg-von-flittner)
New Member
RE: Add G92 E0

I added the G92 E0 , i can slice but when i safe the file , i get eror the configured post-processing not exist : G92 why " sorry my bad english"

Veröffentlicht : 12/02/2023 10:11 am
Sebastien ASTO
(@sebastien-asto)
Mitglied
RE:

Bonjour, même souci voici mon Gcode, ou dois-je alors ajouter cette ligne merci à vous

 

M300 S60 P10 ; chirp M117 Initializing ; Set coordinate modes G90 ; use absolute coordinates M83 ; extruder relative mode ; Reset speed and extrusion rates M200 D0 ; disable volumetric e M220 S100 ; reset speed ; Set print temps M117 Heating nozzle & bed M104 S160 ; set no-ooze nozzle temp while bed heats M140 S[first_layer_bed_temperature] ; set heatbed temperature M109 S160 ; wait until nozzle is warm to avoid bed damage ; Home M300 S60 P10 ; chirp G1 Z3 F3000 ; move z up little to prevent scratching of surface M117 Homing G28 ; home all axes ; Present bed for final cleaning M300 S60 P10 ; chirp G1 Z3 F3000 ; move z up little to prevent scratching of surface G0 X155 Y310 F7200 ; Present bed for cleaning ; Wait for final bed heating M190 S[first_layer_bed_temperature] ; wait for the bed to heat up ; Return to prime position and wait for nozzle to heat up M300 S60 P10 ; chirp G1 Z3 F3000 ; move z up little to prevent scratching of surface G1 X0 Y-5 F7200.0 ; go outside print area M104 S[first_layer_temperature] ; set final nozzle print temp M109 S[first_layer_temperature] ; wait for the nozzle to heat up ; Prime line routine M300 S60 P10 ; chirp M117 Printing prime line M900 K0; Disable Linear Advance for prime line G92 E0.0 ; reset extrusion distance G1 Z0.2 F3000 ; lower nozzle to printing height G1 E5 F1000 ; de-retract and push filament to trap ooze G1 X0 Y-3 F7200 ; move to prime line position G1 X20.0 E10 F7200.0 ; fat 20mm intro line @ 0.5 G1 X60.0 E3.2 F3600.0 ; thin +40mm intro line @ 0.08 G1 X100.0 E6 F3600.0 ; fat +40mm intro line @ 0.15 G1 E-0.8 F3000; retract to avoid stringing G1 X99.5 E0 F3600.0 ; -0.5mm wipe action to avoid string G1 X110.0 E0 F3600.0 ; +10mm intro line @ 0.00 G1 E0.4 F1500; de-retract G92 E0.0 ; reset extrusion distance ; Final print adjustments M300 S60 P10 ; chirp M117 Preparing to print ; Adjust extrusion rate if desired M221 S{if layer_height >= 0.1}90{else}100{endif} ; compensate for thick layer heights M92 E415 ; compensate for extrusion error ;M85 S300 ; activate 300-second idle timeout ; Adjust PID values ;M301 P14.93 I1.27 D43.27 ;M304 P88.75 I11.17 D176.30 M420 S1 Z3 ; reload and fade mesh bed leveling at 10mm M117 Print in progress

Diese r Beitrag wurde geändert Vor 11 months von Sebastien ASTO
Veröffentlicht : 23/12/2023 6:03 pm
JOHN VERBAN
(@john-verban)
Mitglied
RE: Add G92 E0

hello, i have same error and cant fix, can you help?, cheers John

M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration

M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate;

M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration;

M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk;

M220 S100 ;Reset Feedrate

M221 S100 ;Reset Flowrate

M107 ; Turn off fan

G90 ; Absolute positioning

M82 ; Extruder in absolute mode

G28 ;Home

G92 E0 ;Reset Extruder

G1 Z2.0 F3000 ;Move Z Axis up

;Wait for proper temps to be reached

M104 S[first_layer_temperature] ; set nozzle temp

M140 S[first_layer_bed_temperature] ; set bed temp

M190 S[first_layer_bed_temperature] ; wait for bed temp

M109 S[first_layer_temperature] ; wait for nozzle temp

G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position

G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line

G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little

G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line

G92 E0 ;Reset Extruder

G1 Z2.0 F3000 ;Move Z Axis up

Veröffentlicht : 29/10/2024 5:00 am
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