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M191 - Wait for Chamber Temperature

thermal Wait for the chamber to reach target temperature.


This command optionally sets a new target chamber temperature and waits for the target temperature to be reached before proceeding. If the temperature is set with S then it waits only when heating.


This command (as well as M109 and M190) can block new commands from the host. To break out of wait for temperature using M108 from the host, enable EMERGENCY_PARSER.

Use M141 to set the chamber temperature and proceed without waiting.


M191 [R<temp>] [S<temp>]



Target temperature (wait for cooling or heating).


    Target temperature (wait only when heating).


      Set target chamber temperature and wait (if heating)

      M191 S80

      Set target chamber temperature, wait even if cooling

      M191 R40