Jump to content
UltiMaker Community of 3D Printing Experts

print times


Recommended Posts

so im new to 3d printing and i have really lost interest immediately when i started slicing projects do to build times . i do not modify spec i just upload and slice . can someone please tell me why such a simple file would take 22 hours to print ? i have attatched the file . i truly hope there is a setting im missing .


thank you in advance for your inputs 




  • Link to post
    Share on other sites

    Load that STL in Cura.  Set up everything the way you like.  Use the "File | Save Project" command to save it as a 3mf file.  Post the 3mf file here.  A project 3mf file has your printer, the model, and all the settings in it.


    I get 6:11 minutes for print time.  There are several settings that affect print time.  If you have dense infill it can take a lot of time to print.

  • Link to post
    Share on other sites

    I believe you did an "Export" instead of a "Save Project".  They both create 3mf files but an Export is just the model whereas a Project File contains everything you have within Cura at the time.  So try again using "Save Project".


    FDM is not a fast process.  You can push the nozzle size, and the print speed, and some other things but at the end of the day it just isn't fast.

    I know there are a lot of long prints out there.  My personal record is a 32hr print immediately followed by a 22hr print.  The two parts make up the tour pack on the back of my motorized bike.



  • Link to post
    Share on other sites

    Your long print time is because you have the infill at 100% density.

    To the upper right of the Save to Disk button is an (!) icon and after slicing if you hover the mouse over it there will be a breakdown of where all the time is spent.  At 100% infill, all the infill is considered "Skin" and that is where the vast majority of the print time is.

    There are different things you can do.  I'm including a couple of 3mf files.  Open them "as project" but don't allow them to "update" your printer as they can change settings.  You should see a white dropdown button that says "Update...." click on it and select "Create New".  You can delete the extra installed printer later.


    The GV_ThickWall.3mf file shows your part with two "mesh modifiers" that change the wall count for the gear teeth and provide 5 walls to make them stronger.  (see the 2nd image below).


    The GV_2Piece .3mf shows the sprocket split in two parts with locating holes in each one.  The Axle Hole doesn't require support when doing the model like this.  For assembly, you would glue pieces of filament into the 2mm holes in 1 part and then locate the second part on the filament "Locating Pins" when doing a full glue job.  I'm just showing this to get you thinking.


    Yes - At lower infill density, the infill isn't very strong.  In the image below: the infill density is at 10% but the "Infill Line Multiplier" is set to 3.  You can see that the infill is fairly robust.  We are back to an 11hr print though.

    This is Layer:62 with 3 walls, 10% infill, Infill Line Multiplier = 3 and the Infill Layer Height is 2X layer height so it only prints the infill every other layer.  That speeds things up.



    This is from the 3mf file I've attached and it uses two Support Blockers as Mesh Modifiers with the wall count = 3 to beef up the gear teeth.  The infill is 10% with line multiplier at 1.  In this image you can see that the teeth are stronger but the infill is basically just to hold up the top skins when they print.


    FDM often requires that you set aside the normal design considerations in favor of what is necessary for a good FDM print.  If you print a kitchen table with the legs on the build plate it will take forever.  If you print it upside down then it won't require any support and will print much quicker.  Still slow mind you, but quicker than right-side up.




    GV_ThickWallDriveSprocket.3mf GV_2PieceDriveSprocketBase.3mf

  • Link to post
    Share on other sites

    Posted · print times

    This is all very helpful information. i have been reading the settings popups as i go  but reading from someone somehow helps me process the information better . i appreciate all your information and advice . Ill post a picture when i complete the build . I hope to finish by the weekend. at least with the one track. make sure its what i really want to do  


    Thank you again for advice 

  • 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
        • 29 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...