Jump to content

Darker lines and blobs vase mode


Recommended Posts

Posted · Darker lines and blobs vase mode

 Hello, can someone explain me why vase mode printed lamp creating some darker and lighter paths (marked blue), only can see when its turned on (adding photos) 


Another problem making some blobs (marked red)


Im using Ender 3 v2 + cura 4.13.1



  • Link to post
    Share on other sites

    Posted · Darker lines and blobs vase mode

    I get that same effect on every vase that I've passed light through.  The light/dark striations are probably the filament.  Slight variations in diameter, how homogeneous the colorant is mixed, that sort of thing.  Slight changes in the temperature of the hot end as it prints might be involved.  In vase mode the print speed can change as the print gets wider and then narrows again as the layer times change.  If you look at your gcode maybe the "F" numbers will tell you something.

    The blobs seem to appear pretty regularly and show up in the same area of each round feature.  They could be a resolution / print speed problem or they could be mechanical and occurring at a point where the nozzle is changing directions and hesitating for a moment.  It doesn't take much of a stutter to leave a mark.

    How were you printing (SD card, USB, Octoprint, etc.)?


    This is from my Ender 3 Pro.  You can see striations in the blue.  The top (it's shoved up into that light) is silky white and doesn't show that problem.  It had ringing instead.  There aren't any blobs on this print.



  • Link to post
    Share on other sites

    Posted · Darker lines and blobs vase mode

    The M413 S0 turns off your power loss recovery.  I don't think that makes a difference.

    In the cura Mesh Fixes - what was your Maximum Resolution.  The Enders default is 0.4.  If it gets set below about .3 then there can be stuttering around curves as the printer-planner can't keep up with the amount of gcode it has to process.

  • Link to post
    Share on other sites

    Posted · Darker lines and blobs vase mode

    Maximum resolution was 0.25 i changed to 0.4 and now look good (adding photo) 

    just now i have some little white holes, but i guess this is filament problem? (marked blue)


    And still have these lines, but i see pattern is different because i used 200C and this new print was 210C so maybe this mostly filament problem or i can do something about that? 



  • Link to post
    Share on other sites

    Posted · Darker lines and blobs vase mode

    "just now i have some little white holes, but i guess this is filament problem? (marked blue)"

    That could be filament or maybe something clogged the nozzle for just a moment.

    If you haven't cleaned your nozzle or trimmed your bowden tube for a while then maybe now is a good time.  After printing for hours the bottom of the bowden tube can breakdown (even Capricorn tubing will breakdown) and small pieces of carbonized tubing will break free.  Trimming the bowden back 5 or 6mm may make a difference.  An inspection can't hurt.

    If you have not run a PID auto-tune on the Hot End maybe that is something you will want to do.  I'm sure there are youtube videos that explain it.


    A sort of interesting phenomenon is that the bed heater on Enders is controlled by a thermostat whereas the Hot End is controlled by PWM.  All the current for both of them goes through the mainboard.  The hot end is a pretty consistent load.  The bed is not.

    When the bed cools then the thermostat turns it on and when it reaches the set temp, it turns off.  It's "bang-bang" and the current through the mainboard jumps up and down.  That can effect the hot end and so the print temperature can vary.

    I added one of these Power Expansion Boards to my printer to move the bed current off the mainboard.  At lower bed temperatures I don't know that it makes much of a difference.  When printing PETG with the bed at 80° it does make a difference.  It requires some re-wiring, but was really pretty simple.  It uses the bed power line from the mainboard as a signal and passes the current directly from the power supply to the bed heater.  That takes the mainboard out of the loop except as the control source.

    I'm also hoping to avoid this happening again.



    • Thanks 1
    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
        • 56 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
        • 29 replies
    • Create New...