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M190 ; M104 ; M109 instead of M104 ; M190 ; M109


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Posted · M190 ; M104 ; M109 instead of M104 ; M190 ; M109

Hi every

Here is the code generated by UC



M190 S80 heat bed and wait
M104 S250 heat nozzle ans skip
M109 S250 heat nozzle and wait


In this way, bed heats first and after it's hot, nozzle heats.

Every time, I modify it as this wiht editor

M104 S250 heat nozzle and skip
M190 S80 heat bed and wait
M109 S250 heat nozzle and wait


The heating process is faster on this way because nozzle and bed heat in same time


Where to modify this in ultimaker cura to invert M104 and M190 ? The custom code does'nt seem able to do that.

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    Posted (edited) · M190 ; M104 ; M109 instead of M104 ; M190 ; M109

    Tried adding this to start gcode for your printer?


    M104 S{material_print_temperature_layer_0}
    M190 S{material_bed_temperature_layer_0}
    M109 S{material_print_temperature_layer_0}


    Although, I like to heat the bed before I probe to factor out thermal expansion - and if my nozzle is pre-heated it can ooze while it travels and dives during probe moves.

    Edited by BigBlue
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    Posted · M190 ; M104 ; M109 instead of M104 ; M190 ; M109

    @kaptonit - What @BigBlue says will work.  When Cura notices that there are replacement patterns (keywords) in the StartUp Gcode it does not put the initial "M104/M109" or "M140/M190" in front of the startup gcode.


    If you alter your StartUp G-Code and call out the temperatures like this you will get the bed and hot end to heat together.  This example is for a printer with ABL and is meant to keep the nozzle from oozing as it moves around during the Auto-Level sequence.

    M104 S160  ;Start to heat the hot end but keep it below "ooze" temperature.

    M140 S{material_bed_temperature_layer_0} ;Heat the bed to Initial Layer Bed Temp

    M109 S160 ;wait for the hot end to hit 160

    M190 S{material_bed_temperature_layer_0} ;wait for the bed to get to temperature for layer 0

    G28 ;Auto-Home if required

    G29 ;Auto-Level command

    M109 S{material_print_temperature_layer_0} ;wait for the hot end to get to initial layer temperature before trying to extrude any material.


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