Hotend FAN issue

knutselsmurf

I have a DUET WIFI, 1 hotend with fan and a objectblower with 2 fans.

Hotend fan connected to PWM Fan0, objectblower-fans connected (parallel) to PWM Fan1.

I want to have it tempered controlled: hotend above 45 -> fan0 must be activated on 80%.
Object fans only running when needed (depending of the print object.

What I see now in the Duet Screen: a FAN-controller for the hotend which I can move from 0 to max ?? This is only handy for the object-fans, the hotend fan must not be controlled via the duet panel. Tried different things but I can't see whats wrong.

Below what I have in the config.g file for these items.

I hope somebody can se whats wrong and can help me with this.

Would be great !

Arthur

=============
; 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 S100 ; set temperature limit for heater 0 to 100C
M308 S1 P"e0temp" Y"thermistor" T500000 B4723 C1.19622e-7 ; 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 S260 ; set temperature limit for heater 1 to 260C

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 C"BED-FANS" S0 H0 T55 ; set fan 0 name and value. Thermostatic control is turned on
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 C"HOTEND-FAN" S0.5 H1 T45 ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
M106 P2 C"HOTEND-FAN" S0.5 H1 T45 ; set fan 2 name and value. Thermostatic control is turned on

; Tools
M563 P0 S"Extruder0" D1 H1 F1:0 ; 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
M563 P1 S"Extruder1" D0 H1 F1:0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0

Veti

are you sure you are on firmware version 3?
check with M122

Phaedrux

@knutselsmurf said in Hotend FAN issue:

; Tools
M563 P0 S"Extruder0" D1 H1 F1:0 ; define tool 0

You've assigned fans 1 and 0 as part cooling fans for both tools, but your fans are configured as thermostatically controlled.

It's best to have fan0 as the part cooling fan and fan1 as the hotend fan. fan2 can be whatever you want.

Here's an example.

; Fans
M950 F0 C"out3" Q500                               ; create fan 0 on pin out3 and set its frequency
M106 P0 C"PartCool" S0 H-1                         ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out4" Q500                               ; create fan 1 on pin out4 and set its frequency
M106 P1 C"HotEnd" S1 H1:0 T45                      ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out5" Q500                               ; create fan 2 on pin out5 and set its frequency
M106 P2 C"CaseFan" S1 H1:0 T45                     ; set fan 2 name and value. Thermostatic control is turned on
M950 F3 C"out6" Q500                               ; create fan 3 on pin out6 and set its frequency
M106 P3 C"LEDs" S1 H-1                             ; set fan 3 name and value. Thermostatic control is turned off

; Tools
M563 P0 S"HotEnd" 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