Chamber Heater Support
Is there any configuration/macros in RatOS supporting chamber heaters? Or do we just use standard klipper configs to add heaters and temp sensors?
6 Replies
There are a few ways to implement a heater within klipper.
So if RatOs would start supporting that or it wil force a user in a specific setup or it has to cover all potential setups.
For me for example i use just the extra heater port to switch an external temp controller on (this tem controller handles all for the heater and temp settings) then i have a second temp sensor and just do a temp wait on it.
So during a print i detect if i print ABS (Gcode froms slicer) if so > Heater on (Temp is set by buttons on controller) and heater goes to that temp and idles. Then a temp wait before continue printing and when second sensor reaces temp continue with print / start macro.
While pinky is correct, i have implemented a way for you to handle this yourself without too much work.
https://os.ratrig.com/docs/configuration/macros#_user_start_print_heat_chamber
and if you want to change the existing behavior (uses the nozzle as measurement) you can override
https://os.ratrig.com/docs/configuration/macros#_start_print_heat_chamber
Configuring RatOS Macros | RatOS
RatOS comes with a bunch of flexible predefined macro's that can be customized via variables and macro hooks.
https://os.ratrig.com/docs/configuration/macros#_start_print_heat_chamber
This one will run if you supply the
CHAMBER_TEMP parameter to START_PRINT from your slicer.Configuring RatOS Macros | RatOS
RatOS comes with a bunch of flexible predefined macro's that can be customized via variables and macro hooks.
I already implemented another way but might revert and adopt yours with some customization. At least I use the START_PRINT parameters.
I have 2 X 300W PTC heaters with fans (220v) connected to an SSR and connected to the HE1 port on Octopus MAX EZ. The thermistor is connected to TH3.
Need some further help, please. Most likely simple but I am missing something.
This is under the "USER OVERIDES" section in printer.cfg:
This is how my Chamber Heater is defined:
[heater_generic Chamber_Heater]
heater_pin: PA0
max_power: 1.0
sensor_type: Generic 3950
sensor_pin: PA7
control: watermark
#control: pid
min_temp: 0
max_temp: 80
#pid_kp = 72.024
#pid_ki = 0.884
#pid_kd = 1466.590
[verify_heater Chamber_Heater]
max_error: 120
check_gain_time: 180
hysteresis: 2
heating_gain: 2
I have copied the following Macro into the printer.cfg and modified it to used the Chamber heater:
*[gcode_macro _START_PRINT_HEAT_CHAMBER]
description: Uses the extruder sensor to wait for chamber temp. Override the _START_PRINT_HEAT_CHAMBER macro to implement heated chamber handling.
gcode:
{% if params.CHAMBER_TEMP is defined and params.BED_TEMP is defined and params.CHAMBER_TEMP|int > 0 %}
{% set z = printer["gcode_macro RatOS"].start_print_park_z_height|float %}
{% set zSpeed = printer["gcode_macro RatOS"].macro_z_speed|float * 60 %}
G0 Z{z} F{zSpeed}
M84
M117 Heating chamber...
RESPOND MSG="Heating chamber..."
M140 S{params.BED_TEMP}
SET_HEATER_TEMPERATURE HEATER=Chamber_Heater TARGET={params.CHAMBER_TEMP}
TEMPERATURE_WAIT SENSOR=Chamber_Heater MINIMUM={params.CHAMBER_TEMP}
MAYBE_HOME
{% endif %} *
It seems the "temperature_wait" function cannot use the "Chamber_Heater" sensor as I get errors
What am I missing? And why does the message come up 3 times?
Never mind..... by chance changed the wait line to the Full heater/sensor name and now it is working. As I said... it was something simple.....
TEMPERATURE_WAIT SENSOR="heater_generic Chamber_Heater" MINIMUM={params.CHAMBER_TEMP}