Jump to content
Ultimaker Community of 3D Printing Experts

Irregular blobs in large scale print


mark-o-solo
 Share

Recommended Posts

Posted · Irregular blobs in large scale print

Greetings from Switzerland,

 

I am using a Modix 120X large scale printer with an E3D supervolcano and a 1mm nozzle to produce a prototype using cura 4.7.1. I have been tweaking the setting for a couple of weeks to get acceptable results with sufficient printing speeds (currently ~120g/h). However, the hopefully last remaining problems remain a mystery to me. To summarize them:

-irregular blobs on the inside of my object

-slight blobs, like tongues at the front layers

-irregular extrusion at the beginning of a new layer, as if there were bubbles in my hotend

-after finishing a layer with the infill, the nozzle does not move directly to start a new layer. Instead, it completes a very jittery, almost spasmic motion after lifting and across the already printed part. I believe this shaking motion plays a role in the aforementioned bubbles. Here is a vid of this.

My complete settings can be found here. Ive attached some pictures of the problematic regions. I do not have a picture of the bubbles currently, as this also appears to be an irregular event.

 

Happily looking forward to suggestions on how to remedy these nuisances,

Cheers !

 

20201104_180425.jpg

20201104_185846.jpg

20201104_185912.jpg

  • Link to post
    Share on other sites

    Posted · Irregular blobs in large scale print

    Update: the littles tongues are drips from when the nozzle finishes the outer layer and proceeds to start the infill.

    I can't believe I discover this now that it had driven me crazy enought to made a post.

    I am currently experimenting with zhop height, retraction and priming as well as printing the infill first to solve all remaining problems.

  • 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
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    ×
    ×
    • Create New...