M190 - Wait for Bed Temperature

thermal Wait for the bed to reach target temperature.


This command optionally sets a new target bed 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) can block new commands from the host. To break out of wait for temperature using M108 from the host, enable EMERGENCY_PARSER.

Use M140 to set the bed temperature and proceed without waiting.


M190 [I<index>] [R<temp>] [S<temp>]



Material preset index. Overrides S.


Target temperature (wait for cooling or heating).


Target temperature (wait only when heating). Also AUTOTEMP: The min auto-temperature.


Set target bed temperature and wait (if heating)

M190 S80

Set target bed temperature, wait even if cooling

M190 R40