Hotend Temperature doesn't stabelize (Fixed)

What is the problem?

For a while my Ender 3 pro Hotend doesn't stabelize on the temperature I set it to.

What did you already try to solve it?

I already ran the PID Autotune, checked the thermometer and heating block for any visual problemes and tryed to run it in

Did running in safe mode solve the problem?


Systeminfo Bundle

You can download this in OctoPrint's System Information dialog ... no bundle, no support!) (71.2 KB)

browser.user_agent : Mozilla/5.0 (Linux; Android 8.1.0; SM-T580) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36
connectivity.connection_check :
connectivity.connection_ok : true
connectivity.enabled : true : true
connectivity.resolution_check :
connectivity.resolution_ok : true
env.hardware.cores : 4
env.hardware.freq : 1400
env.hardware.ram : 915718144
env.os.bits : 32 : linux
env.os.platform : linux
env.plugins.pi_support.model : Raspberry Pi 3 Model B Plus Rev 1.3
env.plugins.pi_support.octopi_version : 0.18.0
env.plugins.pi_support.throttle_check_enabled : true
env.plugins.pi_support.throttle_check_functional : true
env.plugins.pi_support.throttle_state : 0x0
env.python.pip : 20.3.3
env.python.version : 3.7.3
env.python.virtualenv : true : 2022-10-16T13:04:25Z
octoprint.last_safe_mode.reason : settings
octoprint.safe_mode : true
octoprint.version : 1.8.4
printer.firmware : Marlin Creality 3D
systeminfo.generated : 2022-10-16T13:12:43Z
systeminfo.generator : systemapi

Additional information about your setup

OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
OctoPrint: 1.8.4
Python: 3.7.3
OctoPi: 0.18.0, running on Raspberry Pi 3 Model B Plus Rev 1.3
Printer: Ender 3 Pro
Mainboard: Not sure but I think it's 4.2.7
Firmware: Marlin Creality 3D

Normally, a PID autotune (M303) will fix this problem but since it is a Creality printer running Creality firmware and you have already run a PID autotune I'm not sure what to suggest next.

What parameters did you use with your M303?

I used M303 E0 S200 C7

If it helps I got out the values:
kP: 17.44
kI: 1.50
kD: 50.66

Did you use M301 to input those values back into the firmware and an M500 to save the settings to EEPROM (assuming that Creality firmware stores the PID values in EEPROM)?

You can use M503 to verify the current PID settings and then again after the M500 to verify that the new values have been stored. You can power cycle the printer and use M503 again to verify that the values are stored in EEPROM. If they are not, then you will need to use M301 to set them every time you power cycle the printer.

Often Creality uses the SD card to emulate the EEPROM & save this config, so to add to this point make sure you have an SD card in the printer even while printing from OctoPrint.

Or set the PID values within the start code

This is what I have done. I have multiple tool heads for my LulzBot TAZ 6 so each slicer I use has multiple printer profiles (one for each tool head) and the start gcode contains PID values as well as other tool head specific settings.

1 Like

Sorry für the Long wait, I haven't worked on my printer for a while.
I Really forgot to Put in an SD-Card.
Thanks for all your Help.

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