Jump to content

Recommended Posts

Posted · S5 having trouble extruding

I'm going nuts! All of a sudden both nozzles on my S5 are printing like they are blocked. I've done hots pulls, cold pulls I'm now pulling my hair out. They are both clean and extrude fine manually. I can even see light through the nozzle so I assume it's ok, but not long after the print starts the filament stops feeding. The extruder is trying to feed, if I let it go long enough it starts grinding. I've tried three different brands of PLA filament including a brand new one. As I write this it has just thrown up an error that the print core is taking too long to warm up and has crashed. If the print core has trouble keeping temp then that could explain why it can't extrude, but when I look at it manually there hasn't been any temp issues.

 

All this started after the last firmware upgrade. Has something changed or is it just coincidence? Any help appreciated.

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Hi, thank you for your post. 

     

    Do you also have a material station?

    You could inspect of the small pcb on the back of the print cores are still intact, and clean? You can try to clean the contact points with a cotton swab and some alcohol.

    image.thumb.png.48ca1d2c64a25704e15d6697832ddd23.png

     

    Nothing has changed in the firmware for an Ultimaker S5 stand alone that could be related to this, as far as I know. 

    If you set a temperature (like 220ºC) on your print core via the menu on your Ultimaker S5, does it reach it? It should increase by like 5ºC a second or so. 

     

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Hi SandervG,

     

    Thanks for your quick reply.

     

    No material station, it's just a standalone S5. 

     

    I've cleaned both print core pcb's, although I assume these are independent of each other and unlikely to both fail at the same time.

     

    If I change the filament t extrudes correctly. If I remove the bowden tube I can feed it manually. I can feed it through the controls on the front and it extrudes. As soon as I try and print something it stops extruding and grinds the filament. 

     

    It comes up to temp quick enough, about the rate you suggested above. It seems to hold this during printing and I assume the displayed value is measured not calculated so this should suggest the temperature is correct. 

     

    It feels like a temperature problem, especially as a couple of times now it failed to reach temperature for a hot pull, but I can't pin it down.

     

    Thanks for your help 

     

     

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Can you check if your front fan is running when the core heats up over 40 or 50°C ?

     

    How fast do you print? And do you use one of the default Cura profiles?

    • Like 1
    Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Hey Smithy,

     

    You're a gun!

     

    The front fan had stalled! I gave it a nudge and it's back in action.

     

    I must admit I had noticed it wasn't going, but for some stupid reason I dismissed it because I thought it was the linked to the print cooling which is off for the first couple of layers. Of course it's for the cores and not the print. I should have noticed the familiar whir was missing. Not sure why it was stuck, I keep it really clean. I'll keep an eye on. 

     

    SandervG/Smithy, thank you both for jumping on this so quick, I really appreciate the support and help.

     

    Cheers, stay safe.

    • Thanks 1
    Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Hey guna,

     

    Do you also have an S5?

     

    Is your problem under extrusion? And the filament ends up grinding because it can't feed through, like a blockage, but when you clear it, it seems fine?

     

    Interesting that ABS works and not PLA, but that may be explained by the different temperature requirements. 

     

    In my case it was definitely because the front cooling fan was not running as identified by Smithy. Since I got that going everything is working perfectly. Check your fan is running once the print core gets over 50 degrees. You can check this through the front panel.

     

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding
    7 hours ago, guna said:

    I am also facing the same issue but i can able to print with ABS cant with PLA

     

    Have you ever tried to clean your print cores? Perhaps it is clogged with ABS or some high temp material, which makes way for ABS but the usual operating temps for PLA are not high enough to pass?

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Would you need to use Ultimaker cleaning filament for this or will a PLA hot/cold pull clear an ABS blockage?

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding
    7 hours ago, AddMan said:

    Would you need to use Ultimaker cleaning filament for this or will a PLA hot/cold pull clear an ABS blockage?

     

    Yes, that would be recommended. You can find the instructions here: https://support.ultimaker.com/hc/en-us/articles/360011620800-How-to-perform-a-hot-and-cold-pull

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    Hello, 

     

    How do you verify the temperature of the core while the fan is running?

  • Link to post
    Share on other sites

    Posted · S5 having trouble extruding

    No super easy ways.  One test I like that tests the extruder and the print core at the same time - at least it works for PLA, PETG, Nylon.  Should work for other filaments.  Go to the MOVE menu (start at middle left menu tab then click on the material then in upper right click the vertical "...")

     

    Wait for core to reach temp, then spin the dial and let it extrude.  Experiment with spinning the knob slow, medium, fast until you find the ideal speed to get the maximum extrusion.  Then time how long it takes to get from top to bottom surface on an S5 with a 0.4mm nozzle. Should be about 10 seconds.  20 seconds is "okay" but not great.  more than 20 seconds is a problem.

  • 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 5.9 stable released!
        Here comes Cura 5.9 and in this stable release we have lots of material and printer profiles for UltiMaker printers, including the newly released Sketch Sprint. Additionally, scarf seams have been introduced alongside even more print settings and improvements.  Check out the rest of this article to find out the details on all of that and more
          • Like
        • 5 replies
      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Heart
          • Thanks
          • Like
        • 7 replies
    ×
    ×
    • Create New...