Jump to content

Insufficient infill between layers


Recommended Posts

Posted · Insufficient infill between layers

What can I say, I can't use UM for long time as I getting issues with infill between layers


Some prints can be ok but most is destroyed in some time of print due to lack of infill (at all, looks like empty layer, when you check layer you can clearly see that there is no PLA extruded).

Temp 229, speed 50mm/s, original PLA.

Nozzle and head cleaned lots of times, same issue every time.

On lower temp I getting more often those empty layers... (interesting that I have full layer empty or with problem..., next layer is fine)



  • Link to post
    Share on other sites

    Posted · Insufficient infill between layers

    There are several things that can cause this:

    1) This looks a lot like what you see when the filament on the spool gets tangled for maybe 20 seconds. The extruder has to pull harder and harder until suddenly the spool turns and the tangle comes free. Make sure the filament isn't stuck at the start and middle of your print.

    2) Measure the length of your extruder spring when the extruder is closed and there is filament in it. How long is the compressed spring? It should be 11 to 11.5 mm.

    3) Make sure there is no dust on your filament. This can cause partial clogs.

    Could you send a photo of your extruder? Also remove the filament and photograph the bolt. Check the bolt grooves to see if they are filled with filament. Make sure it looks like a good grip. Also examine the small black disk that squeezes the filament. Does it spin freely? With only a few inches of filament in the bowden tube, hold the filament back with one hand and turn the gear with the other. The feeder should be able to pull about 22 pounds.


  • Link to post
    Share on other sites

    Posted · Insufficient infill between layers

    When you get 'empty' layers, I presume that the gcode (and hence printer) are still trying to extrude? The gear wheel keeps turning?

    My guess would be that you're getting down the spool of filament a bit, and its got a tighter radius of curvature on it, and may be getting caught up on itself at times.

    Try unspooling a meter or two of filament off the reel, and then let it coil back loosely. Keep doing that every few minutes, so there's always some slack to work from, and the extruder never has to actually actively 'pull' filament off the reel.


  • Link to post
    Share on other sites

    Posted · Insufficient infill between layers

    It is extruder unit (too weak pressure on filament).

    No big deal.

    If any one wants to buy UM (from August) with heated bed (aluminium bed + glass on top) and heated chamber please PM. I'm living in UK.

    Selling as we do not need UM any more and with right price I will add new extruder unit from our printer (which will be available in December), as we have own printers and UM can go on market :). Helped a lot to produce some pre-test parts (all parts in our printer comes from moulds ;) not from 3D printer).

    With our extruder unit (which is designed from scratch) you will be printing lots of nice things on UM.


  • 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

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    • Create New...