Several people report having performed the Linear Advance tuning for the snapmaker however when I created the gcode. It didnt print the pattern for some reason. For those that have performed the tuning what settings did you use in the Marlin Linear Advance Pattern Generator or did you perform the tuning some other way?
Mostly default settings worked for me in the past. I haven’t run this one but I just recreated it at least pretty close to what I had.
Most people end up with a value around 0.07, you could use that as a starting value and go by small values. Here it goes from 0 to 0.3 by 0.03 steps.
; Printer: printer name
; Filament: filament name
; Created: Wed Feb 09 2022 07:16:46 GMT-0800 (Pacific Standard Time)
;
; Settings Printer:
; Filament Diameter = 1.75 mm
; Nozzle Diameter = 0.4 mm
; Nozzle Temperature = 205 °C
; Bed Temperature = 60 °C
; Retraction Distance = 1 mm
; Layer Height = 0.2 mm
; Extruder = 0
; Fan Speed = 0 %
; Z-axis Offset = 0 mm
;
; Settings Print Bed:
; Bed Shape = Rect
; Bed Size X = 350 mm
; Bed Size Y = 350 mm
; Origin Bed Center = true
;
; Settings Speed:
; Slow Printing Speed = 1200 mm/min
; Fast Printing Speed = 4200 mm/min
; Movement Speed = 7200 mm/min
; Retract Speed = 1800 mm/min
; Unretract Speed = 1800 mm/min
; Printing Acceleration = 1000 mm/s^2
; Jerk X-axis = firmware default
; Jerk Y-axis = firmware default
; Jerk Z-axis = firmware default
; Jerk Extruder = firmware default
;
; Settings Pattern:
; Linear Advance Version = 1.5
; Starting Value Factor = 0
; Ending Value Factor = 0.3
; Factor Stepping = 0.03
; Test Line Spacing = 5 mm
; Test Line Length Slow = 20 mm
; Test Line Length Fast = 40 mm
; Print Pattern = Standard
; Print Frame = false
; Number Lines = true
; Print Size X = 98 mm
; Print Size Y = 75 mm
; Print Rotation = 0 degree
;
; Settings Advance:
; Nozzle / Line Ratio = 1.2
; Bed leveling = 0
; Use FWRETRACT = false
; Extrusion Multiplier = 1
; Prime Nozzle = true
; Prime Extrusion Multiplier = 2.5
; Prime Speed = 1800
; Dwell Time = 2 s
;
; prepare printing
;
G21 ; Millimeter units
G90 ; Absolute XYZ
M83 ; Relative E
T0 ; Switch to tool 0
M104 S205 ; Set nozzle temperature (no wait)
M190 S60 ; Set bed temperature (wait)
G28 ; Home all axes
G1 Z5 F100 ; Z raise
M109 S205 ; Wait for nozzle temp
M204 P1000 ; Acceleration
G92 E0 ; Reset extruder distance
M106 P0 S0
G1 X0 Y0 F7200 ; move to start
G1 Z0.2 F1200 ; Move to layer height
;
; prime nozzle
;
G1 X-49 Y-37.5 F7200 ; move to start
G1 X-49 Y37.5 E7.4835 F1800 ; print line
G1 X-48.28 Y37.5 F7200 ; move to start
G1 X-48.28 Y-37.5 E7.4835 F1800 ; print line
G1 E-1 F1800 ; retract
;
; start the Test pattern
;
G4 P2000 ; Pause (dwell) for 2 seconds
G1 X-39 Y-37.5 F7200 ; move to start
M900 K0 ; set K-factor
M117 K0 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-37.5 E0.7982 F1200 ; print line
G1 X21 Y-37.5 E1.5965 F4200 ; print line
G1 X41 Y-37.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-32.5 F7200 ; move to start
M900 K0.03 ; set K-factor
M117 K0.03 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-32.5 E0.7982 F1200 ; print line
G1 X21 Y-32.5 E1.5965 F4200 ; print line
G1 X41 Y-32.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-27.5 F7200 ; move to start
M900 K0.06 ; set K-factor
M117 K0.06 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-27.5 E0.7982 F1200 ; print line
G1 X21 Y-27.5 E1.5965 F4200 ; print line
G1 X41 Y-27.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-22.5 F7200 ; move to start
M900 K0.09 ; set K-factor
M117 K0.09 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-22.5 E0.7982 F1200 ; print line
G1 X21 Y-22.5 E1.5965 F4200 ; print line
G1 X41 Y-22.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-17.5 F7200 ; move to start
M900 K0.12 ; set K-factor
M117 K0.12 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-17.5 E0.7982 F1200 ; print line
G1 X21 Y-17.5 E1.5965 F4200 ; print line
G1 X41 Y-17.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-12.5 F7200 ; move to start
M900 K0.15 ; set K-factor
M117 K0.15 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-12.5 E0.7982 F1200 ; print line
G1 X21 Y-12.5 E1.5965 F4200 ; print line
G1 X41 Y-12.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-7.5 F7200 ; move to start
M900 K0.18 ; set K-factor
M117 K0.18 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-7.5 E0.7982 F1200 ; print line
G1 X21 Y-7.5 E1.5965 F4200 ; print line
G1 X41 Y-7.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y-2.5 F7200 ; move to start
M900 K0.21 ; set K-factor
M117 K0.21 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y-2.5 E0.7982 F1200 ; print line
G1 X21 Y-2.5 E1.5965 F4200 ; print line
G1 X41 Y-2.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y2.5 F7200 ; move to start
M900 K0.24 ; set K-factor
M117 K0.24 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y2.5 E0.7982 F1200 ; print line
G1 X21 Y2.5 E1.5965 F4200 ; print line
G1 X41 Y2.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y7.5 F7200 ; move to start
M900 K0.27 ; set K-factor
M117 K0.27 ;
G1 E1 F1800 ; un-retract
G1 X-19 Y7.5 E0.7982 F1200 ; print line
G1 X21 Y7.5 E1.5965 F4200 ; print line
G1 X41 Y7.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X-39 Y12.5 F7200 ; move to start
;
; Mark the test area for reference
M117 K0
M900 K0 ; Set K-factor 0
G1 X-19 Y17.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X-19 Y37.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 X21 Y17.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X21 Y37.5 E0.7982 F1200 ; print line
G1 E-1 F1800 ; retract
G1 Z0.3 F1200 ; zHop
;
; print K-values
;
G1 X43 Y-39.5 F7200 ; move to start
G1 Z0.2 F1200 ; zHop
G1 E1 F1800 ; un-retract
G1 X45 Y-39.5 E0.0798 F1200 ; 0
G1 X45 Y-37.5 E0.0798 F1200 ; 0
G1 X45 Y-35.5 E0.0798 F1200 ; 0
G1 X43 Y-35.5 E0.0798 F1200 ; 0
G1 X43 Y-37.5 E0.0798 F1200 ; 0
G1 X43 Y-39.5 E0.0798 F1200 ; 0
G1 E-1 F1800 ; retract
G1 Z0.3 F1200 ; zHop
G1 X43 Y-29.5 F7200 ; move to start
G1 Z0.2 F1200 ; zHop
G1 E1 F1800 ; un-retract
G1 X45 Y-29.5 E0.0798 F1200 ; 0
G1 X45 Y-27.5 E0.0798 F1200 ; 0
G1 X45 Y-25.5 E0.0798 F1200 ; 0
G1 X43 Y-25.5 E0.0798 F1200 ; 0
G1 X43 Y-27.5 E0.0798 F1200 ; 0
G1 X43 Y-29.5 E0.0798 F1200 ; 0
G1 E-1 F1800 ; retract
G1 X46 Y-29.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X46 Y-29.1 E0.016 F1200 ; dot
G1 E-1 F1800 ; retract
G1 X47 Y-29.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X49 Y-29.5 E0.0798 F1200 ; 0
G1 X49 Y-27.5 E0.0798 F1200 ; 0
G1 X49 Y-25.5 E0.0798 F1200 ; 0
G1 X47 Y-25.5 E0.0798 F1200 ; 0
G1 X47 Y-27.5 E0.0798 F1200 ; 0
G1 X47 Y-29.5 E0.0798 F1200 ; 0
G1 E-1 F1800 ; retract
G1 X50 Y-29.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X50 Y-27.5 F7200 ; move to start
G1 X52 Y-27.5 E0.0798 F1200 ; 6
G1 X52 Y-29.5 E0.0798 F1200 ; 6
G1 X50 Y-29.5 E0.0798 F1200 ; 6
G1 X50 Y-27.5 E0.0798 F1200 ; 6
G1 X50 Y-25.5 E0.0798 F1200 ; 6
G1 X52 Y-25.5 E0.0798 F1200 ; 6
G1 E-1 F1800 ; retract
G1 Z0.3 F1200 ; zHop
G1 X43 Y-19.5 F7200 ; move to start
G1 Z0.2 F1200 ; zHop
G1 E1 F1800 ; un-retract
G1 X45 Y-19.5 E0.0798 F1200 ; 0
G1 X45 Y-17.5 E0.0798 F1200 ; 0
G1 X45 Y-15.5 E0.0798 F1200 ; 0
G1 X43 Y-15.5 E0.0798 F1200 ; 0
G1 X43 Y-17.5 E0.0798 F1200 ; 0
G1 X43 Y-19.5 E0.0798 F1200 ; 0
G1 E-1 F1800 ; retract
G1 X46 Y-19.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X46 Y-19.1 E0.016 F1200 ; dot
G1 E-1 F1800 ; retract
G1 X47 Y-19.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X47 Y-17.5 E0.0798 F1200 ; 1
G1 X47 Y-15.5 E0.0798 F1200 ; 1
G1 E-1 F1800 ; retract
G1 X48 Y-19.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X48 Y-17.5 F7200 ; move to start
G1 X48 Y-15.5 F7200 ; move to start
G1 X50 Y-15.5 E0.0798 F1200 ; 2
G1 X50 Y-17.5 E0.0798 F1200 ; 2
G1 X48 Y-17.5 E0.0798 F1200 ; 2
G1 X48 Y-19.5 E0.0798 F1200 ; 2
G1 X50 Y-19.5 E0.0798 F1200 ; 2
G1 E-1 F1800 ; retract
G1 Z0.3 F1200 ; zHop
G1 X43 Y-9.5 F7200 ; move to start
G1 Z0.2 F1200 ; zHop
G1 E1 F1800 ; un-retract
G1 X45 Y-9.5 E0.0798 F1200 ; 0
G1 X45 Y-7.5 E0.0798 F1200 ; 0
G1 X45 Y-5.5 E0.0798 F1200 ; 0
G1 X43 Y-5.5 E0.0798 F1200 ; 0
G1 X43 Y-7.5 E0.0798 F1200 ; 0
G1 X43 Y-9.5 E0.0798 F1200 ; 0
G1 E-1 F1800 ; retract
G1 X46 Y-9.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X46 Y-9.1 E0.016 F1200 ; dot
G1 E-1 F1800 ; retract
G1 X47 Y-9.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X47 Y-7.5 E0.0798 F1200 ; 1
G1 X47 Y-5.5 E0.0798 F1200 ; 1
G1 E-1 F1800 ; retract
G1 X48 Y-9.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X48 Y-7.5 F7200 ; move to start
G1 X50 Y-7.5 E0.0798 F1200 ; 8
G1 X50 Y-9.5 E0.0798 F1200 ; 8
G1 X48 Y-9.5 E0.0798 F1200 ; 8
G1 X48 Y-7.5 E0.0798 F1200 ; 8
G1 X48 Y-5.5 E0.0798 F1200 ; 8
G1 X50 Y-5.5 E0.0798 F1200 ; 8
G1 X50 Y-7.5 E0.0798 F1200 ; 8
G1 E-1 F1800 ; retract
G1 Z0.3 F1200 ; zHop
G1 X43 Y0.5 F7200 ; move to start
G1 Z0.2 F1200 ; zHop
G1 E1 F1800 ; un-retract
G1 X45 Y0.5 E0.0798 F1200 ; 0
G1 X45 Y2.5 E0.0798 F1200 ; 0
G1 X45 Y4.5 E0.0798 F1200 ; 0
G1 X43 Y4.5 E0.0798 F1200 ; 0
G1 X43 Y2.5 E0.0798 F1200 ; 0
G1 X43 Y0.5 E0.0798 F1200 ; 0
G1 E-1 F1800 ; retract
G1 X46 Y0.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X46 Y0.9 E0.016 F1200 ; dot
G1 E-1 F1800 ; retract
G1 X47 Y0.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X47 Y2.5 F7200 ; move to start
G1 X47 Y4.5 F7200 ; move to start
G1 X49 Y4.5 E0.0798 F1200 ; 2
G1 X49 Y2.5 E0.0798 F1200 ; 2
G1 X47 Y2.5 E0.0798 F1200 ; 2
G1 X47 Y0.5 E0.0798 F1200 ; 2
G1 X49 Y0.5 E0.0798 F1200 ; 2
G1 E-1 F1800 ; retract
G1 X50 Y0.5 F7200 ; move to start
G1 E1 F1800 ; un-retract
G1 X50 Y2.5 F7200 ; move to start
G1 X50 Y4.5 F7200 ; move to start
G1 X50 Y2.5 E0.0798 F1200 ; 4
G1 X52 Y2.5 E0.0798 F1200 ; 4
G1 X52 Y4.5 F7200 ; move to start
G1 X52 Y2.5 E0.0798 F1200 ; 4
G1 X52 Y0.5 E0.0798 F1200 ; 4
G1 E-1 F1800 ; retract
G1 Z0.3 F1200 ; zHop
;
; FINISH
;
M107 ; Turn off fan
M400 ; Finish moving
M104 S0 ; Turn off hotend
M140 S0 ; Turn off bed
G1 Z30 X0 Y0 F7200 ; Move away from the print
; M84 ; Disable motors
M501 ; Load settings from EEPROM
;
I commented out the disable motors at the end. There are likely other tweaks you could do, like commenting out the acceleration setting in the preparation section.
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Thank you! I’ll try that tonight.
I’ll bet my problem was not enabling Origin Bed Center = true
I went to try it and the brand new filament I got from snapmaker was super brittle and ended up clogging my head. That was a first for me so I ordered a cleaning kit.
Brittle filament often means damp filament - try baking it to try to drive the moisture out.
SM filament has been found to be inconsistent in quality.
It used to be even worse, but then they changed suppliers (supposedly) and it has seemed to improve. But still so many other better choices for filament out there. Not like SM filament is a bargain.
-S
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