CAN Toolboard not triggering pause on extruder temperature fault
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Last night I had a print fail due to a heater fault on the extruder. Unfortunately the fault on the extruder did not trigger the printer to pause, causing the machine to attempt to continue printing with a cold block. The slowly cooling hotend caused the cold filament to stopped fusing, which then interfered with the part cooling duct/bltouch, ripping them off and breaking them. The machine continued trying to print with a room temperature nozzle for several more hours. I can easily replace those pieces and get back up and running, but I'd like to understand why it happened so I can prevent a repeat.
The extruder is being ran with a CAN Toolboard v1.1. The machine has a Duet3 mainboard and all the software is the released version of 3.3.
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Here is my config.g
; Configuration file for Duet 3 (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.1.4 on Thu Oct 08 2020 13:25:03 GMT-0400 (Eastern Daylight Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"CustomCore" ; set printer name M669 K1 ; select CoreXY mode ; Network M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0.0 S1 ; physical drive 0.0 goes forwards M569 P0.1 S1 ; physical drive 0.1 goes forwards M569 P0.2 S1 ; physical drive 0.2 goes forwards M569 P0.3 S1 ; physical drive 0.3 goes forwards M569 P0.4 S1 ; physical drive 0.4 goes forwards M569 P0.5 S1 ; physical drive 0.5 goes forwards M584 X0.1 Y0.2 Z0.5:0.3:0.4 E20.0 ; set drive mapping M350 X16 Y16 Z16:16:16 E16 I1 ; configure microstepping with interpolation M92 X160 Y160 Z3200:3200:3200 E398 ; set steps per mm M566 X600 Y600 Z120:120:120 E300 ; set maximum instantaneous speed changes (mm/min) M203 X60000 Y60000 Z600:600:600 E3600 ; set maximum speeds (mm/min) M201 X2500 Y2500 Z20:20:20 E5000 ; set accelerations (mm/s^2) M906 X1600 Y1600 Z1600:1600:1600 E1400 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X320 Y300 Z300 S0 ; set axis maxima ; Endstops M574 X1 S3 ; configure sensorless homing for low end of x M574 Y2 S3 ; configure sensorless homing for high end of Y M574 Z1 S2; P"io3.in" ; configure Z-probe endstop for low end on Z M915 X Y S5 R0 F0 ; Z-Probe M558 P9 C"20.io0.in" H5 F360 T20000 ; Set Z probe type to switch, the axes for which it is used and the dive height + speeds M950 S0 C"20.io0.out" ; create servo pin 0 for BLTouch G31 P500 X0 Y-43 Z0.64 ; set Z probe trigger value, offset and trigger height M557 X38:295 Y-3:252 P3 ; define mesh grid ; leadscrew locations M671 X-18:354:169 Y77:77:343 S3 ; Heaters M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0 M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0 M140 H0 ; map heated bed to heater 0 M143 H0 S150 ; set temperature limit for heater 0 to 80C M308 S1 P"20.temp0" Y"pt1000" L-25 ; configure sensor 1 as PT1000 on pin temp1 M950 H1 C"20.out0" T1 ; create nozzle heater output on out1 and map it to sensor 1 M307 H1 A407.5 C228.4 D2.9 M143 H1 S330 ; Fans M950 F0 C"out3" Q500 ; create fan 0 on pin out3 and set its frequency M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off M950 F1 C"20.out1" ; create fan 1 on pin out4 and set its frequency M106 P1 S1 H1 T80 ; set fan 1 value. Thermostatic control is turned on ; part cooling ssr M950 F2 C"out7" M106 P2 S0 ; Tools M563 P0 D0 H1 F2 ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C ; Custom settings are not defined -
I can confirm that I am having the same issue. A temp fault on a V1.1 toolboard running 3.3 does not trigger a pause.
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@dc42 Thanks for the update, I'll keep an eye on the release notes!