Heater fault with no error when preheating extruder
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I have a duet toolboard 1.2 brand new from matterhackers, thats connected to a 12v hemera running the high precision heater cartridge and a volcano hotend. Ever since I got the board it has not been able to heat up properly. On the last toolboard that I had everything worked fine until something on the board broke and caused the heater to be on all of the time. When preheating the extruder to 210 c the extruder gets up to about 40 c from 24 c ambient, and goes fault without any error message. when doing diagnostics before and after, no errors appear. I can incrementally heat up the hotend by increasing the heat target by 10-20c, but this is not ideal. When trying to tune the hotend using the autotune function, it reaches temperature fine, and after gives the error Auto tune of heater 1 failed due to bad curve fit (1.069 K=0.260:0.101 D=8.8) No matter what I do, deleting prexisting settings for the heatre or changing the temp target, it will not work.
here is my config.g
; Configuration file for Duet 3 Mini 5+ (firmware version 3.3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.3.10 on Sun Jan 30 2022 08:57:25 GMT-0800 (Pacific Standard Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves ;M550 P"RyansPrinter" ; set printer name M669 K1 ; select CoreXY mode ; Wait a moment for the CAN expansion boards to start G4 S2 ; Network ;M552 S1 ; enable network 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 T0:2:0:0 ; physical drive 0.4 goes forwards same M569 P0.6 S1 T0:2:0:0 ; physical drive 0.4 goes forwards Odrive recoomendeded timing M569 P121.0 S0 ; physical drive 0.4 goes forwards M584 X0.6 Y0.5 Z0.2:0.4:0.1 E121.0 ; set drive mapping 3 z motors ;M584 X0 Y1 E4; three Z motors connected to driver outputs 2, 5 and 6 M671 X510:-10:510 Y450:250:50 S4 ; leadscrews at rear right, left middle and front right M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation remove X16 Y16 M92 X105.57 Y105.57 Z1200 E409.00 ; set steps per mm M566 X1800.00 Y1800.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X75000 Y75000 Z180.00 E1200.00 ; set maximum speeds (mm/min) M201 X12000 Y12000 Z20.00 E250.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z1500 E800 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 X470 Y480 Z500 S0 ; set axis maxima ; Endstops M574 X1 S1 P"io1.in" ; configure switch-type (e.g. microswitch) endstop for high end on X via pin io0.in M574 Y2 S1 P"!io0.in" ; configure switch-type (e.g. microswitch) endstop for high end on Y via pin io1.in M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe ;M558 P8 C"^121.io0.in" H10 F120 T6000 ; set Z probe type to switch and the dive height + speeds ;G31 P500 X0 Y0 Z0.95 ; set Z probe trigger value, offset and trigger height M557 X15:470 Y15:480 S40 ; define mesh grid ; Z-Probe M558 P8 C"121.io2.in" H3 F1000 T6000 A20 S0.005 ; PINDA set Z probe type to switch and the dive height + speeds ;M308 S2 P"121.temp1" A"PINDA" Y"thermistor" T100000 B3950 G31 P500 X5 Y-3 Z1 ; set Z probe trigger value, offset and trigger height ;M557 X20:485 Y41:360 P7 ; define mesh grid ; 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 M307 H0 B0 R0.210 C247.5 D2.42 S1.00 V12.1 ;M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit ;M307 H0 S1.00 A350 R2.429 C140 D5.5 B1 ; 2-19-22 auto tuning params using bang- BANG mode ;Heater 0 model: heating rate 2.429, cooling time constant 140.0, dead time 5.50, max PWM 1.00, calibration voltage 0.0, mode bang-bang M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"121.temp0" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin 121.temp0 M950 H1 C"121.out0" T1 ; create nozzle heater output on 121.out0 and map it to sensor 1 M307 H1 R1.069 K0.260:0.101 D8.8 E1.35 S1.00 B0 V12.4 ; R=1.069 K=0.260:0.101 D=8.8 M143 H1 S280 ; set temperature limit for heater 1 to 280C ; Fans M950 F0 C"out5" Q500 ; create fan 0 on pin out3 and set its frequency M106 P0 S0 H-1 C"Board Fan" ; set fan 0 value. Thermostatic control is turned off M950 F1 C"121.out1" Q250 ; create cooling fan 1 on pin toolboard out1 and set its frequency M106 P1 S0 H-1 B1 C"Part Cooling Fan" ; set fan 1 value. Thermostatic control is turned off M950 F2 C"121.out2" Q500 ; create fan 2 on pin 121.out1 and set its frequency M106 P2 S1 H1 T45 ; set fan 2 value. Thermostatic control is turned on ; Tools M563 P0 D0 H1 F1 ; 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 setting s are not defined M955 P121.0 I54 ; specify orientation of accelerometer on Toolboard 1LC with CAN address 121 M593 P"zvd" F27.2 ; use ZVD input shaping to cancel ringing at 40.5Hz -
What command are you using to tune the hotend?
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@phaedrux I am using M303 T0 S220 P1 F0.5 A23 I have tried different variations with the S parameter, and with the PWM, if I set the Pwm to 0.75 or any number other than 1 the tuning will get stuck and just fail.
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Can you show a photo of your hotend? Is the part cooling fan blowing on the block? Do you have a silicone nozzle sock?
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@Phaedrux I have a silicone sock on the nozzle, it is a hemera, with the volcano and an e3d high precision heater cartridge. I have two cooling fans wich are just 5010 blowers, which i tired turning down for the tuning but it did not do anything. I ordered a new heater cartridge, so that may fix this, otherwise it is probably a faulty toolboard which i will need to get replaced
