Just finished building my Rostock Max v2 and am trying to run the PID tuning (M303 S200, per my manual) and the issue I am having is that the printer hits the set temperature and just keeps heating. This also fails the autotuning due to high temperature. The displays tick up as it heats and track increases and decreases correctly as far as I can tell, but it does not stop after reaching the set point.
It will do the same if I tell it to set a temperature. I have tried restarting the printer and reuploading the firmware (repetier v091 reads as 091s on my LCD) I am using MatterControl 1.4 and Repetier-Host 1.6.
I have tried multiple temperatures between 45C-200C with the same results. I also dropped the Extr.1 PID max value to 128. Can someone suggest next steps to try? My research suggested that it was likely a firmware issue but that I couldn't rule out hardware. I am not sure where to approach the hardware side from; if the temperature is being measured accurately (even if not, it reads like it hit the set point on the LCD and in MatterControl) I would think that would stop it unless it is measured elsewhere as well. Help is very much appreciated.
So far I have tried:
* Restarting the software and printer
* Picking different temperatures for the hot end heating
* Reducing the hot end power to slow the heating in case it was just overshootingtoo far and fast (values 80 and 128 tried)
* Trying different control software (MatterControl 1.4 and Repetier-Host 1.6)
* Reuploading firmware to the Rambo
In progress / to-do:
* Check all hot end and temperature related wiring
* disassemble hot end and check thermistor connections, resistance readings, and RTV
- Repetier-Host log, command was M303 S50