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ManuelW

variable for gcode to set firstlayer temp

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Posted · variable for gcode to set firstlayer temp

hey there,

can someone tell me the variable for the gcode to set the firstlayer nozzle and bed temperature?

i only found the variable for the "normal" print temps, but not for the firstlayer.

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Posted · variable for gcode to set firstlayer temp

The g-code is the same, it's just the position where it's placed..... there is no specific "first layer temp" code afaik

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Posted · variable for gcode to set firstlayer temp

But there is a setting for the first layer temp in Cura.

If i set this

 

M140 S{material_bed_temperature} T0 ; Heat buildplateM134 T0 ; Stabilize bed temperatureM104 S{material_print_temperature} T0 ; Heat right extruderM133 T0 ; Stabilize right extruder temperature

 

the printer is heating to print temp and not the set first layer temp.

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Posted (edited) · variable for gcode to set firstlayer temp

You'll see cura use 2 g-codes.

The fist time temperature is set (is first layer temp)  M109 is used, which means execution of the rest of the code will wait until the set temperature is reached.

Further on in the g-code the temperature is set using M104, meaning the temperature is adjusted to this set temp but execution of the rest of the code will not wait till this temp us reached.

So if you set first layer temp to 205, and print temp to 200, you'll first find a M109 S205 and further on a M104 S200.

Edited by Guest

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Posted · variable for gcode to set firstlayer temp

No, i cant use the auto generated temps of Cura, because it breaks my print start.

So is have to use the variables in my start gcode. But the variable {material_print_temperatue} set's the print temp and not the first layer print temp.

i need something like {first_layer_print_temp} or so.

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Posted · variable for gcode to set firstlayer temp

just a wag, try: "material_print_temperature_layer_0"

...from the fdmprinter.def.json file...

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