Jump to content
UltiMaker Community of 3D Printing Experts

UM3 custom material transfer issue


Recommended Posts

Posted · UM3 custom material transfer issue

Dear Community


I have read some similar discussions about the issue of adding custom materials in Cura and then not be able to choose those materials on the UM3 printer.


In my specific case, I defined a custom material for my PCL filament at 60°C extrusion temperature on Cura, but I cannot choose it on my UM3 as a printing material. I read on some threads that I could instead copy a similar existing material, unfortunately there is no existing material that is remotely close to PCL in behaviour. Anyways I have not found a way that my custom material or something similar is transferred to the UM3. 


Did someone have a similar issue or can maybe someone from Ultimaker comment on this issue of transferring custom materials to UM3?


Many thanks

  • Link to post
    Share on other sites

    Posted · UM3 custom material transfer issue

    I just skip all of that and save a project file with all the settings. I gave up on any custom profiles a while ago due to various reasons. But a ".curaproject.3mf" file saves everything and is always loadable. Just make sure you use the save project choice and not save.


  • Link to post
    Share on other sites

    Posted · UM3 custom material transfer issue

    So I save my project wit "save project", put it on my USB stick and load it onto my UM3? Because if I do this, I do not see the project file on the printer interface..or how do you transfer it to your printer?

  • Link to post
    Share on other sites

    Posted · UM3 custom material transfer issue

    I think I am missing something....


    Are you trying to load custom materials into cura or the printer?


    The UM3 series and above do not let you put custom materials onto the machine itself. It is all handled by cura now.

  • Link to post
    Share on other sites

    Posted · UM3 custom material transfer issue

    The printer.


    Is there a way of connecting the printer to cura in order to print my custom material? I defined the custom material on cura, all good, it even let me choose a printing temperature as low as 60°C. But now I want to print this file with these settings and therefore I have to load my filament on my UM3 printer, which already is not possible because my custom material does not appear on the printer interface (I usually put the prepared file from cura on my USB stick, then I put the stick into the printer). 


    Am I missing something? Should the printer be linked with WLAN or LAN to a cura-operating computer in order to do this?

  • Link to post
    Share on other sites

    Posted · UM3 custom material transfer issue

    Ahhhh, ok....now I understand...sorry for the disconnect.


    Here is the procedure.


    When you set a custom material in Cura, you are starting with an already established material. Let us say you are printing in PETG.


    I use the nylon settings to start with because that will let it load the material at the right temp and have good flow when loading. Some choose CP or CPE. But, this is an example.


    So, since I choose nylon as my base material, and I load another material, in this example, PETG, I will choose nylon when it prompts me when loading. From that point on, the sliced file has control over printing temps and all other settings while printing. For me, the most important thing is to match the loading temp. This will also allow for using the move command and ensure good flow. The rest is up to the Cura sliced file whilst printing.


    But, that is why I save my project files.

    1. I archive all my files
    2. It has all modified setting for that material and layer heights
    3. will always load with those setting for ease of set up
    4. Does not get lost in upgrades or even have issues between versions as some have found

    Hope this helps. I know it is disconcerting for people that are moving from an earlier UM machine to the UM3 and above. Since I started with the UM3E, it has never been a thing for me to process. I just pick stuff from reading almost all the posts.

  • Link to post
    Share on other sites

    Posted · UM3 custom material transfer issue

    Well I wouldn't tell the printer anything.  I would first of all disable auto leveling because that will heat the cores much too hot for PCL.  I would let the printer think that there is PLA in the printer.  I would use this device to load and unload all materials (that's what I've done the last few years on my UM3 - I haven't tried the normal loading procedure):



    Before you load any material you may want to do a cold pull to get the older high temp filament out of the nozzle.


    After loading the new material I do not use the move command.  I just heat the nozzle manually to the desired temp and insert wedgebot and shove the filament hard until it is extruding nicely then retract (manually) about 1cm and remove wedgebot.


    You probably have to add a cold extrude gcode to your gcode file before printing it.  I don't think the UM3 will normally allow the extruder to rotate below 170C.  Here is the gcode:


    M302 S0


    If you go to print and the extruder is not rotating then add the above line to your gcode file right after the lines of gcode that heat things up but before the nozzle purge part.  It might be that the printer will heat to 200C for the purge even if cura says the printing temp is 60C.  Will this be a problem?  Try it first.  If it's a problem then you can switch cura to reprap mode.


    In machine settings you can print in reprap mode where cura will have a set of "start gcodes" that you can edit and you can make sure the initial purge is done at 60C.  You can add the M302 S0 in the "start gcodes" as well.


  • Link to post
    Share on other sites

    Posted (edited) · UM3 custom material transfer issue

    Thank you for your help guys!


    I will put your instructions to test tonight, fingers crossed.


    @gr5 since you have experience in PCL printing, would you care to share with me some parameters like printing speed that are working best for you? Do you even heat the plate? So far I had someone else do it for me, but he always complains about how difficult it is to find the settings for a decent looking print.


    EDIT: I tried my first print, nozzle temperature was at 60°C, great. It also went to 200°C for purging as you predicted. However the printed layer did not stick to the plate, do you have any recommendation on how to deal with the plate? (heat it, coat it with glue, or else?)

    Edited by FMLstark
    added value
  • 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

      • UltiMaker Cura 5.3 stable released
        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 24 replies
      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.

        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 18 replies
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 22 replies
    • Create New...