Printing Temps inaccuracy

I’ve noticed a bed and nozzle temp disparity, when using Luban v4.1.4 and Snapmaker 1.14.2.

Using the standard PLA and Normal Quality settings,

Printing Temp: 205C
Initial Print Temp: 205C
Build plate Temp: 50C
Initial Build plate Temp: 70C

The GCode reads as:
nozzle_temperature(°C): 215
build_plate_temperature(°C): 60

This is reflected on the Snapmaker display.

Am I’m doing anything incorrectly, or is there a bug and I should reinstall earlier software?


I reinstalled Luban 4.1.3, 4.1.1 and 4.0.1 and the issue doesn’t show when the Gcode is generated in 4.0.1 but from 4.1.1 onwards.


Can you copy and paste any lines from the gcode file that start with M104 (or attach the entire file)? M104 commands are what actually sets the nozzle temperature—the header with the ;nozzle_temperature etc. lines is just to pretty things up.

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Hi, I’ll give it a go…

Both nozzle and bed temps are off when comparing 4.0.1 through to 4.1.4?

The webpage kept locking up when trying to post the code

xyz calbrationcube 4.0.1.gcode
(534.5 KB)

xyzCalibrationcube_4.1.4.gcode (527.9 KB)

xyzCalibrationcube_4.1.1.gcode (527.9 KB)

xyzCalibrationcube_4.1.3.gcode (527.9 KB)

I hope this is okay?

Okay, the 4.0.1 gcode does set the nozzle to 205 (M104 S205), while the 4.1.3 gcode starts at 215 then goes to 210 after the first layer. So if you’re using the same settings, there is something wrong—this isn’t just the screen displaying garbage information for an otherwise-correct file.

A similar bug appears to have already been filed on Github. Since Snapmaker staff do read Github but don’t read the forums anymore, that might be the best place to take this. Until it gets fixed, you can roll back to an older Luban version, or use another slicer such as Cura to generate gcode for 3D printing.

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Thank you for your help.

I was thinking that I was going mad…

I’m assuming that there is also a similar issue with the bed temp setting?

Each of the files uses the same standard PLA and Normal Quality settings.