Jump to content

extrusion problem


Recommended Posts

Posted · extrusion problem

hello everibody

I come to you because I need help. I bought a Ultimaker extended printer last month and I think I have a under extrusion problem.

Of the filament exits the nozzle at the beginning I listen a sound as a kind of "tock".

Impressions do not end and there is a problem of adhesion to the buildplate.

I went on this very interesant blog :

http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide#underextrusion_feederWheel

I clean the buildplate

I ajust the buildplate

I do "atomic metod " and the filament is quite clean

I push the screw feeders at the middle

I clean inside the feeder

Teflon seems to have a normal color

the filament of the settings for PLA :

IMG_0730.thumb.JPG.c4363030a347e578664a468e7a8f9a6b.JPG

IMG_0729.thumb.JPG.9c8f60e38a5a37a7eb3a54c2a916cc14.JPG

After that the problems are the same ....

Ps : sorry for my broken english

IMG_0730.thumb.JPG.c4363030a347e578664a468e7a8f9a6b.JPG

IMG_0729.thumb.JPG.9c8f60e38a5a37a7eb3a54c2a916cc14.JPG

  • Link to post
    Share on other sites

    Posted · extrusion problem

    Try slowing it down to like 50mm/s, I had the same problem with Cura but I eventually went to the program Simplify 3D, its much easier for tinkering with settings.

    Also on the first layer, set the speed really slow that way it helps the filament to stick to the buildplate, I always have my first layer about half the speed as the rest of my print, as well as the last layer.

    The tock may be your filament guide, on the back of you ultimaker there is a screw (your ultimaker came with the allen wrench for it) you can tighten the screw to help grab your filament when printing, i was having the same issue. Its right above the little white plastic square. Once you start to tighten or loosen it will begin to move up or down.

    • Like 1
    Link to post
    Share on other sites

    Posted · extrusion problem

    You need to check a few things. First of all, that the bottom layer is pressed tightly on to the bed, which the bed levelling is all about. This is crucial, but you do not have to do it very often. You want to see the lines being printed so that they are flat, not rounded. Of course if your bed is too near the nozzle, the printer will be trying to force out a load of plastic for which there is no space, and you will that knocking sound from the extruder.

    So basically, you need to balance the need for a squashed down bottom versus a too tight gap.

    Bear in mind that you cannot print most PLA at 200C, 60mm/sec and 0.2mm layer height. That's just too much plastic being forced through the nozzle and the extruder motor will kick back and "tock". So, start off with PLA at 210C, 0.1mm layer height and 15mm/sec for your first layer, 30mm/sec for the rest.

    With the bed height adjustment and these speeds, you should be able to dial things in quite nicely.

    • Like 1
    Link to post
    Share on other sites

    Posted · extrusion problem
    I push the screw feeders at the middle

    For the newer UM2's made in 2014 and 2015 I recommend you make this not-tight. Put the white marker all the way up.

    danilius has very good advice about bottom layer. Please post photos if you still have problems with bottom layer.

    Probably you are printing too cold/toof ast as danilius also mentions.

    Here are top recommended speeds for .2mm layers (twice as fast for .1mm layers):

    20mm/sec at 200C

    30mm/sec at 210C

    40mm/sec at 225C

    50mm/sec at 240C

    The printer can do double these speeds but with huge difficulty and usually with a loss in part quality due to underextrusion.

  • Link to post
    Share on other sites

    Posted · extrusion problem

    thank you to everyone for your reply I will follow your advice.

    I will keep you informed of the evolution of my problem

    Danilius is an extract of the blog recomandations :

    In March of 2014 the spring inside the feeder was changed and the proper setting will therefore differ depending on when you received your printer. For machines from before March of 2014 the indicator should be at the top and for machines after this date the indicator should be in the middle.

  • 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...