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.gcode generated on http://retractioncalibration.com/ doesn't print on U3

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Posted · .gcode generated on http://retractioncalibration.com/ doesn't print on U3

Hi guys. I was advised to use http://retractioncalibration.com/ retraction test generator to tinker with and refine my TPU printing settings on Ultimaker 3. 

I generate the .gcode with the default numbers, send it to the printer via cloud but nothing happens. When I try to print it from a USB drive for a split second the printer screen says ETA is 0 min 0 sec and then returns to the default screen.

I tried changing the X and Y dimensions from 200 each to 233 and 215 respectively (as per my U3 settings) as well as putting "T1" in the Custom gcode space. Is there anything I’m missing here? 


Tried it on both Cura 4.3 and 4.8 on Windows 10 (Gcode flavor Griffin)

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    Posted · .gcode generated on http://retractioncalibration.com/ doesn't print on U3

    Check the gcode and compare it. I guess the header of an original Cura generated gcode is missing.

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    Posted · .gcode generated on http://retractioncalibration.com/ doesn't print on U3

    Cura gcode example.gcoderetraction calibration test.gcode

    Hi Smithy, thanks for your suggestion. Please see the gcode generated by http://retractioncalibration.com/ and the random example from Cura. They begin quite differently. Do I just copy paste the header from the Cura example gcode and change the numbers so it works with the retraction test? There's info in the header such as:


    Do I need to find all this information in the retraction gcode and translate it into the header for this to work?

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    Posted · .gcode generated on http://retractioncalibration.com/ doesn't print on U3

    Not everything is needed, there are also some comments which are not needed. I am not an expert what is needed, so maybe someone else can give detailed advices.


    But another idea. Have you tried to load the gcode in Cura and print from there or save it again? I think Cura adds the missing and needed header lines.

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