M104

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Table of Contents Description Example Arguments Discussion Notes

Description

Set the target temperature for a hotend.

Example

 M104 S190 ; Set the current extruder's hotend temperature
 M104 T1 S220 ; Set the hotend temperature for Extruder 1

Arguments

 S<celsius> Required. The temperature to set.
 T<target>  An optional extruder number.

Discussion

M104 changes the target temperature for an extruder's hotend. Unlike the M109 command, it will not wait for the temperature to be reached before proceeding with the next command.

Notes

• Use M109 to wait for the target temperature to be reached. M109 can also be used to set the temperature, obviating the need for this command during a print job.
• With DUAL_X_CARRIAGE this sets the temperature for both hotends, adding an offset to the second temperature (as set by the M605 R parameter).