Thanks for your reply.
I've checked the whole GCODE file.
M104 and M140 are only used one more time at the end to set the temperature to 0 after the print is finished. No other occurance somewhere else.
M109 is only given on the part of the code shown above.
This custom GCode is in the printer settings, not at the extruder.
Should I put it there?
Edited by spucky
Quick update
Tried it putting the commands in one line each, didn't work
The printer started again with 240 °C until i set it down to the 210 as defined in the profile.
I'm thinking it could be a problem with the printer's profile in Cura generating incorrect gcode. Just looked and Cura 5.4.0 doesn't seem to include a profile for it. Can you upload/post/link to the profile you're using?
3 hours ago, Slashee_the_Cow said:Can you upload/post/link to the profile you're using?
Correct, the printer isn't yet included in the Cura settings.
This is the profile i am using:
https://forum.drucktipps3d.de/forum/thread/27510-creality-k1-profile-für-cura-prusa/#post312788
When you get old you miss tricks...
In these two lines change the square brackets [PrusaSlicer] to curly brackets {Cura}.
START_PRINT EXTRUDER_TEMP=[material_print_temperature_layer_0]
BED_TEMP=[material_bed_temperature_layer_0]
to
START_PRINT EXTRUDER_TEMP={material_print_temperature_layer_0}
BED_TEMP={material_bed_temperature_layer_0}
That startup is redundant though. There is no reason to heat the machine up and then turn it off just so you can heat it up again.
Experiment (2) would be to comment these lines out by placing a semi-colon in front of them.
;M140 S0
;M104 S0
;START_PRINT EXTRUDER_TEMP=[material_print_temperature_layer_0]
;BED_TEMP=[material_bed_temperature_layer_0]
That allows the initial M104 and M109 to do their thing and the printer should understand that.
Damnit @GregValiant you beat me to it. That custom start gcode is WACK.
Here's one generated from your profile:
M140 S0 ; Set target temperature of bed to 0 degrees M104 S0 ; Set target temperature of extruder to 0 degrees START_PRINT BED_TEMP=60 EXTRUDER_TEMP=200 ; I'm not great at Marlin but I'm guessing these set variables, not sure if it works with two on one line though and they're never referenced again G92 E0 ; Specify that the current extruder position is 0 (which it probably is already) G92 E0 ; Why do this twice? G1 F3000 E-0.6 ; Set the extruder to -0.6 (is it trying to be a vacuum?)
Compare to the default profile for an Ender-3 S1 (I messed up my profile for the regular Ender-3 when I tried to customise it for my v2 Neo so this should be close enough). Admittedly I have no idea what the difference between that and the K1 is. Anyway:
; Ender 3 S1 Start G-code ; M413 S0 ; Disable power loss recovery G92 E0 ; Reset Extruder ; Prep surfaces before auto home for better accuracy M140 S60 ; Start heating bed - n.b. for this print I did set the bed to 60 and extruder to 200 M104 S200 ; Start heating extruder G28 O ; Home all untrusted axes G1 Z10.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed < It's about to move and we don't want it to scrape the bed G1 X0 Y0 ; Move to the front-left corner of the plate M190 S60 ; Wait for bed to finish heating to 60 M109 S200 ; Wait for extruder to finish heating to 200 ; This code is when it wipes its nose along one side of the bed so hopefully anything caught on the hotend comes off and just gets it flowing G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line G92 E0 ; Reset Extruder G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish
IMHO You're probably better off just using a Creality profile that comes with Cura for the printer most similar to yours. Or at the very least just customise the profile for the K1 and replace its start code with one from another Creality printer, the default profiles are all found at C:\Program Files\UltiMaker Cura 5.4.0\share\cura\resources\definitions
Ya gotta get up pretty early in the morning to beat me.
(Some folks have to stay up all night!)
Those two lines are not Marlin commands. The printer might understand them...PrusaSlicer might understand them...Octoprint, or the "Creatlity interface" thingy might understand them, but the "Replacement Pattern" variable name must get replaced. It won't get replaced as written because Cura doesn't acknowledge the square brackets.
Thanks for your great suggestions.
The K1 is indeed different to an Ender 3
I had an Ender 3 S1 before and selected that printer and modified it. That ended up in a mess.
The lines in the K1 start configuration are used also in Creality Print, the forked Cura 4.whatever version made by creality. They have K1 profiles in there.
The GCODE flavor set there is "NebulaPad" (whatever that is)
And this is the part where the GCODE is documented:
I would really appreciate getting the things working on my Linux machine. Even if Crealty has a version which can be launched on Linux, the slice process quitted the whole application with a memory access fault. So it simply can't be used.
And running a virtual machine with Windows just for that is like killing flies with a flame thrower.
I will try commenting out the start code and see what happens to the printer then. But i think i need to keep the "START PRINT" command. From what i understand is that the reference line (on the very left of the printer) is made here, before it starts with the print itself.
But it still doesn't answer the question why 240°C is selected and not any other value. This is far away from the extruder capabilities (300°C)
Edited by spuckyQuick Update after more testing.
neither changing to {} brackets nor commenting out solves the problem.
The print starts with 240°C and only gets down by manually changing it.
Next attempt will be exchanging the variables with fixed values. Seem to be that Cura is getting an override by the printer which isn't covered by the material setting.
But even 210 would be better than the given 240 which makes at least skirt and first layer too high until it cools down to the correct temperature
But more tomorrow. Now it's already late 🙂
Another try. (I hope we're getting closer.)
This should be 3 lines (with curly brackets):
M140 S0
M104 S0
START_PRINT
EXTRUDER_TEMP={material_print_temperature_layer_0}
BED_TEMP={material_bed_temperature_layer_0}
A test results in:
; Ender 3 Custom Start G-code
;
START_PRINT
EXTRUDER_TEMP=235
BED_TEMP=83
M104 S235
M140 S83
M109 S235
M190 S83
G92 E0 ; Reset E
ArunC posted a topic in UltiMaker Cura,
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GregValiant 1,111
Just looking at the Hot End lines you have:
M104 S195
M109 S195
M104 S0
These next lines are for some other intermediate gizmo. It's possible that these aren't reacting properly since these are the lines that are actually supposed to set the temperature.
START_PRINT EXTRUDER_TEMP=[material_print_temperature_layer_0] BED_TEMP=[material_bed_temperature_layer_0]
If those were M104 or M140 then Cura would replace the variable names with the temperature values.
It's also possible that the single line should be two lines like;
START_PRINT EXTRUDER_TEMP=[material_print_temperature_layer_0]
BED_TEMP=[material_bed_temperature_layer_0]
Anyway, I think that's where you need to look but do a search through the gcode file for M104 and M109 and see if there are any that set the hot end to 240°.
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