Duet 2 Wifi heat till 195 dagrees then nothing
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Hello, I buy a 24v heater for my hotend. I dont change anything in my conifg. All of my components are 24v components. It heats only till 195 dagrees and then it says temperature target not reached.
Here is my config. I have an 3D Freunde 24V Hotend and an 100k Thermistor:
; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Mon Apr 04 2022 20:14:28 GMT+0200 (Mitteleuropäische Sommerzeit); General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"My Printer" ; set printer name
M669 K1 ; select CoreXY mode; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet; Drives
M569 P0 S0 ; physical drive 0 goes backwards
M569 P1 S0 ; physical drive 1 goes backwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E420.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X800.00 Y800.00 Z800.00 E500.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 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 X300 Y300 Z300 S0 ; set axis maxima; Endstops
M574 X1 S1 P"xstop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z1 S2 ; configure Z-probe endstop for low end on Z; Z-Probe
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H5 F300 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:300 Y15:300 S20 ; define mesh grid; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T1000 B3950 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S280 ; set temperature limit for heater 1 to 280C; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on; Tools
M563 P0 D0 H1 F0 ; 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
;THERMISTORS
M305 P0 T100000 B3950 R4700 H30 L0 ; Put your own H and/or L values here to set the bed thermistor ADC correction
M305 P1 T100000 B3974 R4700 H30 L0 ; Put your own H and/or L values here to set first nozzle thermistor ADC correction
M305 P2 T100000 B3974 R4700 H30 L0 ; Put your own H and/or L values here to set 2nd nozzle thermistor ADC correction;BLTOUCH
M307 H3 A-1 C-1 D-1
M558 P9 H5 F100 T2000
G31 X19 Y0 Z0 P25; Custom settings are not defined -
@robiiinx You need to run a PID tuning for the heater as a tool.
https://docs.duet3d.com/en/User_manual/Connecting_hardware/Heaters_tuning
Add M501 to the end of config.g, and after the tuning, do a M500 to save it.
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@Stephen6309 I make a PID tuning. I write
"M303 H1 S240". At 198 dagrees it says "Auto tune cancelled because target temperature was not reached"
In your Link they say i must write "M303 T0 S205" but it says "Heater 1 tuning failed"
I dont know what i should do.
I make a PID tuning at 190 dagrees. And I saved it. After that I try to heat on 205 but it says "heating fault on heater 1, temperature rising much more slowly than the expected 1.0°c/sec"
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@robiiinx Is is actually getting 24v and the heater has the correct resistance for 24v.
Using T0 for the pid, takes the parts cooling fan into acount for heating and H1 is the heater for T0.
Typical heater resistance;
12V 20W -> ~ 7.2 Ω
12V 30W -> ~ 4.8 Ω
12V 40W -> ~ 3.6 Ω
24V 20W -> ~ 28.8 Ω
24V 30W -> ~ 19.2 Ω
24V 40W -> ~ 14.4 Ω -
@Stephen6309 Where i have to write that on my config.g?
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@robiiinx Write what? Those resistances are used with a multimeter to verify the that heater core is what it says it is.
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@Stephen6309 it says 14,4 Ω
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@robiiinx Check the voltage when the heater is on, it should be 24v. Otherwise, I don't know what's going on.
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@robiiinx what type of hot end is it? If it's an E3Dv6 or similar, check that there is a gap between the heater block and the heatsink.
Duet WiFi hardware designer and firmware engineer
Please do not ask me for Duet support via PM or email, use the forum
http://www.escher3d.com, https://miscsolutions.wordpress.com -
@dc42 its an e3dv6 clone from „3DFreunde“
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Photo of the hotend?
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Also you may check that the fan you are using for you heatsink isn't blowing to hard, I was having that problem with my dual head setup. Slowed the fan down and then redid the pid tunning and now both heads work fine.
