Initial layer temperature not set in 4.11? (SOLVED)

[simon0362 1]

Hi All,

Upgraded to 4.11 yesterday and for a difficult print I set the initial layer temperature to a rather higher level than the remaining layers (215°C vs 201°C).

However the print still didn't work and after some further investigation in the GCode, I cannot see that the initial temperature has been set - the standard printing temperature is set at the start and is never changed.

 

Happy to be told that I have not correctly set something up....

 

snip from the Gcode (temperature set is highlighted in RED😞

T1 ;switch to other head
M109 S201.0 ; Wait for the temp to hit 200
G00 X125 Y-60 Z0.2 ;
G00 Z0
G92 E0 ;
G01 E25 F100 ; Extrude a little bit to replace oozage from auto levelling
G01 X100 Y-50 F100 ;
G01 Z5 ;

M109 S201.0
M82 ;absolute extrusion mode
;Deltacomb Extruder 2
;Put your custom code here
M83 ;relative extrusion mode
M83 ;relative extrusion mode
G1 F2400 E-3.5
;LAYER_COUNT:198
;LAYER:0
M107
M204 T2250
M566 X600 Y600
G1 F10200 Z1.3
G0 F7140 X5.943 Y2.519 Z1.3
M204 P1000
M566 X1500 Y1500
;TYPE:SKIRT
G1 F10200 Z0.3

 

and down at the start of layer #1:

;TIME_ELAPSED:42.647882
;LAYER:1
M106 S127.5
M204 P1333
M566 X1500 Y1500
;TYPE:WALL-INNER
;MESH:Part Studio 1 - Part 1a.stl
G1 F3360 X2.206 Y-0.014 E0.13276

 

and a snip from the settings:

 

Simon

 

[nallath 1,124]

That's because your start-gocde probably sets the printing temperature and not the initial printing temperature.

[simon0362 1]

54 minutes ago, nallath said:

That's because your start-gocde probably sets the printing temperature and not the initial printing temperature.

Well there is a set print temperature to 200 because I do a preload of the nozzle and squirt a few mm off bed after bed levelling and before running the main code.

But why should an initial M109 prevent the initial layer temperature from being set?

[nallath 1,124]

Because you use the {material_print_temperature} instead of {initial_material_print_temperature} replacement tag in the g-code (or well, that's what I think is going wrong)

 

[simon0362 1]

7 minutes ago, nallath said:

Because you use the {material_print_temperature} instead of {initial_material_print_temperature} replacement tag in the g-code (or well, that's what I think is going wrong)

 

Thank you very much - exactly the problem, well solved from a distance.

 

Not a bug, just the operator (again!)