lwmbecker

Awesome, thanks for the help! Tried disabling everything or only some of them, but that showed no difference. Nice, I tried 8 for BUFSIZE now as well, leaving all other mentioned parameters untouched and hurray! That did the trick. Danke! 🤩

Hm, actually I just double checked in the source codes and in both cases those lines where already defined (#define ADVANCED_OK and #define SERIAL_OVERRUN_PROTECTION). But could it maybe be something related to the buffer size? All test so far have been done via the build in SD card reader. // @section gcode // The number of linear moves that can be in the planner at once. #if ALL(HAS_MEDIA, DIRECT_STEPPING) #define BLOCK_BUFFER_SIZE 8 #elif HAS_MEDIA #define BLOCK_BUFFER_SIZE 16 #else #define BLOCK_BUFFER_SIZE 16 #endif // @section serial // The ASCII buffer for serial input #define MAX_CMD_SIZE 96 #define BUFSIZE 16

Hei, thanks for the reply! That is a good idea and fits with the observations I made today. Inserted an M0 command between all lines where it stopped previously and it seemed to work fine when clicking through each command, so I got a bit further in the print. The next command after the last M0 led again to a reboot. Will try your idea with SERIAL_OVERRUN_PROTECTION on Monday. Tried this btw as well with the newest version of the bugfix 2.1.x branch, but the results were quite similar. Just that with this firmware I could not complete the manual bed levelling procedure. Measured all 9 points correctly, but then rebooted during homing.

Actually, this behaviour is slightly different depending on if I choose the gcode flavor “marlin” or “marlin volumetric” in Cura. I mixed the two in the post above, updated and correct below. As you can see below the problem starts slightly earlier in the “marlin” flavor, and slightly later in the “marlin volumetric” flavor. In the “marlin” flavor it already reboots just after it extruded 10mm.. but doesn’t move to the actual starting position of the piece. gcode snippet: ;FLAVOR:Marlin ;TIME:2945 ;Filament used: 0.83648m ;Layer height: 0.15 ;MINX:62.004 ;MINY:85.927 ;MINZ:0.27 ;MAXX:133.287 ;MAXY:140.301 ;MAXZ:15.72 ;Generated with Cura_SteamEngine main M140 S60 ;set bed temp M105 ;send temp report to host M190 S60 ;wait for bed to reach temp M104 S200 ;set hotend temp M105 ;send temp report to host M109 S200 ;wait for hotend to reach temp M82 ;absolute extrusion mode G21 ;metric values G90 ;absolute positioning M82 ;set extruder to absolute mode M107 ;start with the fan off G28 Z0 ;move Z to bottom endstops G28 X0 Y0 ;move X/Y to endstops G1 X15 Y0 F4000 ;move X/Y to front of printer G1 Z15.0 F9000 ;move the platform to 15mm G92 E0 ;zero the extruded length G1 F200 E10 ;extrude 10 mm of feed stock G92 E0 ;zero the extruded length again G1 Y50 F9000 M117 problems start… ;Put printing message on LCD screen M117 Printing... G92 E0 G92 E0 G1 F1500 E-6.5 ;LAYER_COUNT:104 ;LAYER:0 M107 G0 F4500 X69.088 Y98.143 Z0.27 G0 X64.233 Y102.949 ;TYPE:SKIRT G1 F1500 E0 G1 F1800 X64.646 Y102.417 E0.0114 G1 X65.539 Y101.364 E0.03478 G1 X66.004 Y100.863 E0.04635 G1 X66.992 Y99.886 E0.06987 G1 X67.494 Y99.431 E0.08134 G1 X68.56 Y98.546 E0.1048 G1 X69.088 Y98.143 E0.11604 G1 X70.221 Y97.355 E0.13941 G1 X70.892 Y96.938 E0.15278 another snipped (volumetric): ;FLAVOR:Marlin(Volumetric) ;TIME:2860 ;Filament used: 5336.23mm3 ;Layer height: 0.15 ;MINX:62.004 ;MINY:85.927 ;MINZ:0.27 ;MAXX:133.287 ;MAXY:140.301 ;MAXZ:15.72 ;Generated with Cura_SteamEngine main M190 S60 M104 S200 M109 S200 M82 ;absolute extrusion mode G21 ;metric values G90 ;absolute positioning M82 ;set extruder to absolute mode M107 ;start with the fan off G28 Z0 ;move Z to bottom endstops G28 X0 Y0 ;move X/Y to endstops G1 X15 Y0 F4000 ;move X/Y to front of printer G1 Z15.0 F9000 ;move the platform to 15mm G92 E0 ;zero the extruded length G1 F200 E10 ;extrude 10 mm of feed stock G92 E0 ;zero the extruded length again G1 Y50 F9000 ;Put printing message on LCD screen M117 Printing... G92 E0 G92 E0 G10 ;LAYER_COUNT:104 ;LAYER:0 M107 G0 F4500 X69.088 Y98.143 Z0.27 G0 X64.233 Y102.949 ;TYPE:SKIRT M117 problems start… G11 G1 F1800 X64.646 Y102.417 E0.07274 G1 X65.539 Y101.364 E0.22185 G1 X66.004 Y100.863 E0.29567 G1 X66.992 Y99.886 E0.44574 G1 X67.494 Y99.431 E0.51891 G1 X68.56 Y98.546 E0.66854 G1 X69.088 Y98.143 E0.74028 G1 X70.221 Y97.355 E0.88933

Hei, The x-axis stepper driver burnt out (motor making weird noises on that stepper driver) on our UM2+, which is why I swapped the stepper to the E2 axis and swapped the pins accordingly in marlin. Previously we were using stock software. Now I think I made the new firmware (marlin 2.1.2.1) work as far as homing and bed levelling and extrusion with e1. No unusual noises. Everything moves apparently in the correct directions. The issue is now that when I start printing it starts up correctly (heats bed and nozzle, homing, move to front left, extrude some feed stock etc).. but then, just after it moves to the first coordinates of the actual print (in this case the skirt/base thing) marlin suddenly fails and reboots without any error message. I think it’s round about the line of of where I print “problems start…” Any hints to where I could continue my bug search? I am guessing it’s still something that is set incorrectly in marlin.. but what? 🤷🏻‍♂️ Anyone? 🙂 gcode snippet: ;FLAVOR:Marlin ;TIME:2945 ;Filament used: 0.83648m ;Layer height: 0.15 ;MINX:62.004 ;MINY:85.927 ;MINZ:0.27 ;MAXX:133.287 ;MAXY:140.301 ;MAXZ:15.72 ;Generated with Cura_SteamEngine main M140 S60 ;set bed temp M105 ;send temp report to host M190 S60 ;wait for bed to reach temp M104 S200 ;set hotend temp M105 ;send temp report to host M109 S200 ;wait for hotend to reach temp M82 ;absolute extrusion mode G21 ;metric values G90 ;absolute positioning M82 ;set extruder to absolute mode M107 ;start with the fan off G28 Z0 ;move Z to bottom endstops G28 X0 Y0 ;move X/Y to endstops G1 X15 Y0 F4000 ;move X/Y to front of printer G1 Z15.0 F9000 ;move the platform to 15mm G92 E0 ;zero the extruded length G1 F200 E10 ;extrude 10 mm of feed stock G92 E0 ;zero the extruded length again G1 Y50 F9000 ;Put printing message on LCD screen M117 Printing... G92 E0 G92 E0 G1 F1500 E-6.5 ;LAYER_COUNT:104 ;LAYER:0 M107 G0 F4500 X69.088 Y98.143 Z0.27 G0 X64.233 Y102.949 ;TYPE:SKIRT M117 problems start… G1 F1500 E0 G1 F1800 X64.646 Y102.417 E0.0114 G1 X65.539 Y101.364 E0.03478 G1 X66.004 Y100.863 E0.04635 G1 X66.992 Y99.886 E0.06987 G1 X67.494 Y99.431 E0.08134 G1 X68.56 Y98.546 E0.1048 G1 X69.088 Y98.143 E0.11604 G1 X70.221 Y97.355 E0.13941 G1 X70.892 Y96.938 E0.15278