Printer freezes after pruge-line, then restarts

[Velvia]

M122

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.4.5 (2022-11-30 19:35:23) running on Duet 3 MB6HC v1.01 (SBC mode)
Board ID: 08DJM-9P63L-DJ3S0-7JKF0-3S86T-TAJR8
Used output buffers: 3 of 40 (22 max)
=== RTOS ===
Static ram: 152760
Dynamic ram: 65564 of which 156 recycled
Never used RAM 131712, free system stack 142 words
Tasks: SBC(ready,0.6%,468) HEAT(notifyWait,0.0%,322) Move(notifyWait,0.0%,256) CanReceiv(notifyWait,0.0%,944) CanSender(notifyWait,0.0%,336) CanClock(delaying,0.0%,333) TMC(notifyWait,8.1%,57) MAIN(running,91.0%,1197) IDLE(ready,0.3%,30), total 100.0%
Owned mutexes: HTTP(MAIN)
=== Platform ===
Last reset 00:03:45 ago, cause: software
Last software reset at 2023-07-14 20:23, reason: User, Platform spinning, available RAM 132192, slot 2
Software reset code 0x0000 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00400000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
Step timer max interval 133
MCU temperature: min 33.3, current 33.4, max 44.8
Supply voltage: min 23.9, current 24.0, max 24.0, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.2, current 12.2, max 12.3, under voltage events: 0
Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
Events: 0 queued, 0 completed
Driver 0: standstill, SG min 0, mspos 78, reads 10531, writes 21 timeouts 0
Driver 1: standstill, SG min 0, mspos 102, reads 10531, writes 21 timeouts 0
Driver 2: standstill, SG min 0, mspos 290, reads 10531, writes 21 timeouts 0
Driver 3: standstill, SG min 0, mspos 24, reads 10538, writes 15 timeouts 0
Driver 4: standstill, SG min 0, mspos 8, reads 10542, writes 11 timeouts 0
Driver 5: standstill, SG min 0, mspos 8, reads 10542, writes 11 timeouts 0
Date/time: 2023-07-14 20:27:42
Slowest loop: 56.78ms; fastest: 0.04ms
=== Storage ===
Free file entries: 10
SD card 0 not detected, interface speed: 37.5MBytes/sec
SD card longest read time 0.0ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 125, segments created 20, maxWait 92585ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 8, completed 8, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP* is doing "M122" in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger* is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is idle in state(s) 0
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty
=== CAN ===
Messages queued 2022, received 0, lost 0, boc 0
Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 50 (min 50), ts 1130/0/0
Tx timeouts 0,0,1129,0,0,891 last cancelled message type 30 dest 127
=== SBC interface ===
Transfer state: 5, failed transfers: 0, checksum errors: 0
RX/TX seq numbers: 9291/9291
SPI underruns 0, overruns 0
State: 5, disconnects: 0, timeouts: 0 total, 0 by SBC, IAP RAM available 0x2ad48
Buffer RX/TX: 0/0-0, open files: 0
=== Duet Control Server ===
Duet Control Server v3.4.1
Code buffer space: 4096
Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0
Full transfers per second: 41.44, max time between full transfers: 56.4ms, max pin wait times: 31.4ms/12.1ms
Codes per second: 0.37
Maximum length of RX/TX data transfers: 3080/992

Identical gcode from one day ago works fine. Only difference now is that I updated Prusa to 2.6.0. Otherwise everything is the same.

gcode

; generated by PrusaSlicer 2.6.0+win64 on 2023-07-14 at 17:00:12 UTC

; 

; external perimeters extrusion width = 0.80mm
; perimeters extrusion width = 0.80mm
; infill extrusion width = 1.00mm
; solid infill extrusion width = 0.80mm
; top infill extrusion width = 0.80mm
; support material extrusion width = 0.80mm
; first layer extrusion width = 0.80mm

M201 X10000 Y10000 Z1500 E9000 ; sets maximum accelerations, mm/sec^2
M203 X12000 Y12000 Z4800 E7200 ; sets maximum feedrates, mm / min
M204 P8000 T12000 ; sets acceleration (P, T), mm/sec^2
M566 X600.00 Y600.00 Z60.00 E420.00 ; sets the jerk limits, mm/min
;TYPE:Custom
T0 ; Select tool 0
G28 ; home all axes
G92 E0.0


M104 S200                           ; preheat extruder to no ooze temp                           ; wait for extruder temp
M140 S75 ; set bed temp
M109 S200                           ; wait for extruder temp
                            
M400
M564 H1 S0                          ; allow movement outside print area (S0) of all homed axes (H1)
M400
G1 X189.5 Y-83.0 Z20.00 F4000       ; wipe nozzle over brass brush
G1 X189.5 Y-83.0 Z14.00        
G1 X177.0 Y-90.0 Z14.00 F3000
G1 X179.5 Y-80.0 Z13.00
G1 X189.5 Y-83.0 Z13.00
       
G1 X191.5 Y-69.0 Z14.00
G1 X177.0 Y-90.0 Z14.00
G1 X191.5 Y-69.0 Z14.00
G1 X177.0 Y-90.0 Z14.00
G1 X191.5 Y-69.0 Z14.00
G1 X177.0 Y-90.0 Z14.00
G1 X191.5 Y-69.0 Z13.00

G1 X189.5 Y-83.0 Z13.00
G1 X179.5 Y-80.0 Z13.00
G1 X189.5 Y-83.0 Z13.00

M190 S75 ; wait for bed temp
M400


G1 X179.5 Y-80.0 Z13.00
G1 X189.5 Y-83.0 Z13.00
G1 X179.5 Y-80.0 Z13.00
G1 X189.5 Y-83.0 Z13.00
G1 X179.5 Y-80.0 Z13.00
G1 X189.5 Y-83.0 Z13.00

G1 X191.5 Y-69.0 Z13.00
G1 X177.0 Y-90.0 Z13.00
G1 X191.5 Y-69.0 Z13.00
G1 X177.0 Y-90.0 Z13.00
G1 X191.5 Y-69.0 Z13.00
G1 X177.0 Y-90.0 Z13.00
G1 X191.5 Y-69.0 Z13.00
G1 X179.5 Y-80.0 Z13.00
G1 X189.5 Y-83.0 Z13.00

M400                           ; wait for previous action to finish
G1 X0 Y0 Z13 F4000             ; move to middle of bed to probe
M400
M564 S1                        ; restrict movement outside print area
M400
                              
G1 Z9 F8000                    ; move to 9mm above bed to probe
M400                           ; wait
                               
G30 F2000                          ; probe middle of bed to establish Z0 to avoid babystepping every time

M400                               ; wait

G1 X164 Y38 Z5 F8000               ; set nozzle above bed
M400                               ; wait                  
G1 G30 S-1 F1200                   ; set nozzle into bed to prevent oozing
M104 S250    ; set extruder temp               
M109 S250    ; wait for extruder temp
M400

G1 z0.4                            ; set nozzle 0.3mm aboe bed to purge
G1 X122.6 Y118.6 E30 F800          ; purge intro line
G21 ; set units to millimeters
G90 ; use absolute coordinates
M82 ; use absolute distances for extrusion
G92 E0
M572 D0 S0.20               ; pressure advance
M579 X0.9978 Y0.0.9902 Z1       ; X, Y and Z scaling
G29 S1 P"heightmap70.csv"     ; S1 = load specific heightmap
M107
;LAYER_CHANGE
;Z:0.3
;HEIGHT:0.3
G1 E-3 F3600
G92 E0
G1 Z.5 F12000
G1 X.003 Y-73.992
G1 Z.3
G1 E3 F3600
M204 P3000
;TYPE:Skirt/Brim
;WIDTH:0.8
G1 F2400
G1 X75.528 Y-73.988 E9.92946

[deckingman]

@Velvia said in Printer freezes after pruge-line, then restarts:

Just after your purge line you have this.........

M579 X0.9978 Y0.0.9902 Z1 ; X, Y and Z scaling

I'm wondering if the two decimal points for Y is what is screwing things up. I guess it should be M579 X0.9978 Y0.9902 Z1 so try changing that to see if it helps.

[Velvia]

@deckingman Didn't catch that! Will change. Thanks!

[Velvia]

@deckingman That was the issue. Huge thanks!