Error: Heater Chamber_Heater not supported

General Discussion
1

Basic Information:

Printer Model: Voron 2.4
MCU / Printerboard: BTT Manta M8p
Host / SBC: CM4
klippy.log
klippy (3).log (84.7 KB)

…

I’ve added a secondary heater to a Voron 2.4 350. Printer is in a detached garage and winter is coming. When the garage is around 8c in the winter, it can take ~45 minutes to heat up for ABS prints.

For some reason the [heater_generic … ] throws an error when trying to change the set point temperature.

> ###################################
> #   Chamber Heater Control
> ###################################
> 
> [heater_generic Chamber_Heater]
> #gcode_id: d
> heater_pin: PB6                   # HE2
> sensor_type: Generic 3950
> sensor_pin: PA2                   # TH1
> 
> control: watermark                # use watermark control method (on/off)
> max_delta: 2                      # set the delta temp to energize/deenergize chamber heater
> 
> min_temp: 0                       # set minimum temp before error/shutdown
> max_temp: 70                      # SAFETY max chamber temperature, printer will shutdown above this temp
> #pwm_cycle_time: 0.01666           # Set this to avoid room lights flickering on higher power heaters. This value works well for 60Hz power. 0.1 is 10Hz
> 
> [verify_heater Chamber_Heater]
> max_error: 120
> check_gain_time: 120
> hysteresis: 5
> heating_gain: 2
> 
> ##########################
> #   Chamber Heater Fan 
> ##########################
> 
> [heater_fan heater_fan]
> pin: PE1                          #HE3
> max_power: 1.0
> heater: Chamber_Heater
> heater_temp: 30.0 # fan will turn off below this level

No errors are in the klippy log until I change the setpoint temperature either through the GUI or via command line:

SET_HEATER_TEMPERATURE HEATER=chamber_heater TARGET=30

The heater shows up as you’d expect on the Mainsail console and reports current temperature.

I can change the definitions to manually controlled fans for the heater’s fan, and the heater itself as well as defining the thermistor as a simple monitoring thermistor. The fan will run, the heater will heat, and the thermistor will work as you’d expect. (Obviously not a good idea to do this during operation, it’s just a test).

The above config is basically a copy/paste out of the klipper reference documents, but it won’t let me operate it.

(printer is a year or so old, everything else works great)

2

You have created a custom macro that replaces SET_HEATER_TEMPERATURE (I don’t feel like reading it to figure out why you wanted to do that) and you limited what heaters it could be used with.

[gcode_macro SET_HEATER_TEMPERATURE]
rename_existing = _SET_HEATER_TEMPERATURE
gcode = 
        
        {% set HEATER = params.HEATER|default("None") %}
        {% set TARGET = params.TARGET|default(0)|int %}
        
        {% set THRESHOLD = printer["gcode_macro _BEDFANVARS"].threshold|int %}
        
        {% if HEATER|lower == "extruder" %}
        M104 S{TARGET}
        {% elif HEATER|lower == "heater_bed" %}
        M99140 S{TARGET}
        
        
        
        
        {% else %}
        {action_respond_info("Heater %s not supported" % HEATER)}
        {% endif %}
        
        
        {% if HEATER|lower == "heater_bed" %}
        {% if TARGET >= THRESHOLD %}
        BEDFANS_SLOW
        UPDATE_DELAYED_GCODE ID=bedfanloop DURATION=1
        {% else %}
        BEDFANS_OFF
        UPDATE_DELAYED_GCODE ID=bedfanloop DURATION=0
        {% endif %}
        {% endif %}

Either get rid of your custom macro, or update it to work correctly.

3

Ah yes, that’s for the bed fans… forgot about that part of that code.

I’ll need to read a bit more then, thanks for the pointer.