Jump to content

Sudden Problem with Rough Edges on Prints


Recommended Posts

Posted · Sudden Problem with Rough Edges on Prints

Hello All!

I am in need of assistance. I attached a photo of my issue. Suddenly I have been getting "Boogers/Warts" on my prints. I can't figure out why and it's driving me crazy. I use my printer for work and I print the same parts over and over and I've never had this problem before. I haven't changed any of the designs or the gcode, nor have I changed the material. I've done some research and I'm leaning towards this being a moisture issue but I am not hearing popping while printing and I even tried a brand new spool of filament.

Here are some specs:

-2 year old Ultimaker 2

-Olsson Block

-Original Feeder

-Printing with ColorFabb XT Green at 240C, 70C Build Plate, 50mm/s speed

Here is what I've tried doing in hopes of remedying my situation (all done separately):

-Leveled the build plate

-Printed on a clean build plate

-Cleaned and lubricated all rods

-Tried brand new roll of XT filament

-Tried other filaments (ColorFabb PLA and ColorFabb nGen)

-Set extrusion to 95%

-Set extrusion to 105%

-Printed at 90% speed

-Replaced nozzle with brand new nozzle (.4mm)

Like I said, I'm going crazy. I made no changes to the printer, design, or the filament before this started happening. If anyone can help me out I would greatly appreciate it.

Thank You!

Colton

image2.thumb.JPG.9c9c2e049f3135777e1aea1b857fe211.JPG

  • Link to post
    Share on other sites

    Posted · Sudden Problem with Rough Edges on Prints

    Try printing at half speed. It sounds like you are printing lots of these and want to print them fast but just try it. Actually try 20mm/sec just to see if this fixes the problem.

    Most of the time cutting the speed in half will get rid of these bumps. If you printed multiple of these parts on the same print bed then it could be a leaking/stringing issue but that's not what it looks like.

    Also check and make sure the infill speed is the same as the print speed.

    If you want to print this faster, use a .8mm or 1mm nozzle - because there are no sharp corners you will loose no quality and you can print in half the time with the same layer height and print speed and you can probably speed it back up again (less pressure build up in the nozzle with larger nozzle).

  • Link to post
    Share on other sites

    Posted (edited) · Sudden Problem with Rough Edges on Prints

    Oh - and if slowing it down fixes the problem and you never used to have the problem (as you say) and you didn't slice with a newer version of cura then the problem is most likely related to the nozzle anyway and just has some buildup which gives it extra pressure and printing fast (higher pressures) is what tends to cause these bumpouts.

    So instead of using a larger nozzle (I strongly recommend that for this part!) you could just burn out the nozzle to ash and maybe also soak it in acetone overnight and maybe also do a few cold pulls and maybe scrape the nozzle a little with a nozzle cleaning tool (what country do you live in as where to get a good nozzle cleaning tool varies by country - please update your profile). Or just buy a new .4mm nozzle from 3dsolex.

    Edited by Guest
  • Link to post
    Share on other sites

    Posted · Sudden Problem with Rough Edges on Prints

    Thank you for the reply! Last night I changed my nozzle temp from 240 to 230 and that helped tremendously. There are still bumps but not nearly as many.

    I will try slowing it down to 20mm/s tonight and see if that helps and I will try a large nozzle. I will also try cleaning out the nozzle - it's due for a cleaning anyway...

    I'm in Chicago - thank you for the tip to update my profile - I just filled it out.

  • Link to post
    Share on other sites

    Posted · Sudden Problem with Rough Edges on Prints

    So since your are in USA, know that if you buy anything from my store you will get a free steel nozzle cleaner that fits in in nozzles .35mm and larger:

    gr5.org/store/

  • Link to post
    Share on other sites

    Posted · Sudden Problem with Rough Edges on Prints

    I've had a similar issue. In my case the rough areas always occurred in the same place each time. After a similarly long list of trying many of the same unsuccessful remedies, I replaced the nozzle which fixed the issue.

  • 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

      • Introducing Universal Cura Projects in the UltiMaker Cura 5.7 beta
        Strap in for the first Cura release of 2024! This 5.7 beta release brings new material profiles as well as cloud printing for Method series printers, and introduces a powerful new way of sharing print settings using printer-agnostic project files! Also, if you want to download the cute dinosaur card holder featured below, it was specially designed for this release and can be found on Thingiverse! 
          • Like
        • 10 replies
      • 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
    ×
    ×
    • Create New...