Jump to content
Ultimaker Community of 3D Printing Experts

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

Recommended Posts

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)

  • Link to post
    Share on other sites
    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.

  • Link to post
    Share on other sites
    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?

  • Link to post
    Share on other sites
    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.

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • Startups, apply for the Forward AM Innovation Award!
        Are you a startup using 3D printing? Perhaps you should continue reading... 
        Together with BASF we are launching the Forward AM Innovation Award - the very first global contest for startups developing new applications with 3D printing!
        Why apply?
        The winning startup will receive €100,000 in goods and services*, along with coaching and marketing exposure from top-notch leaders in the industry.

        Who can apply?
        Your startup creates products using Additive Manufacturing, is less than 5 years old, and has less than 50 employees. We are looking for 3D printing applications with a strong focus on innovation, sustainability and scalability.
        Dental aligners, shoes, tools, automotive parts, music instruments, industrial tooling and molding, medical implants, sports equipment, toys, architecture, fashion, construction... all are welcome to join!
        Do you have an innovative, sustainable and scalable idea that leverages the unique possibilities of 3D printing? Then it is time to apply!
        More information can be found here.
        Applications close on March 28th, 2021
        * What does "in goods and services" mean?
        The winner will be able to pick any item from the overall product and service portfolio of the sponsors, e.g. printers, materials, consulting, software... Choose whatever you need to accelerate your startup.
          • Like
        • 0 replies
      • New here? Register your Ultimaker for free 3D printer onboarding course
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 0 replies
    • Create New...