Jump to content
Ultimaker Community of 3D Printing Experts

Recommended Posts

I finished my Dual extrusion upgrade last week. A calibration model and a first photo of a print can be found on youmagine (see signature below).

As it seems from the blog and also from my experience it works great except there is still some oozing that sort of makes the prints a bit messy.

My current idea (which I just tested) is simple.The oozing wall. Basically everytime when there is a change between extruders the noozle has to cross a wall to get rid of the oozing.

An example can be seen in the picture. The quick and dirty solution (especially easy with small prints where you know from which side the swapped noozle will enter the print) is to create protective walls. This worked really well and I had almost no cleaning to do afterwards. The bonus is that it is potentially a software solution that could be integrated in Cura. Instead of having a brim or raft, there could be a selection to have also a wall. The simple version would be to have the skirt drawn upwards so there would be a hull outside of the model, but this needs a lot of time and material is wasted.

A cleverer solution would be the following procedure: at every noozle change the new noozle moves to a predifined wall crossing (wipe tower) and then starts to print. This is maybe only triggered if the noozle was idling more than 5 s (could be a setting in cura) as oozing normally takes some time.

The wipe tower would be printed by both noozles and needs not to be an enormous structure, but maybe quite solid for bigger prints.

Another idea I had (but did not work that good), was to attach an old CD to the frame so it covers a edge of the platform as a permanent wipe tower (would not need to be printed). This worked reasonably well, but needs some more fiddling.

cubewallmodel

cubewall

 

  • 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 Transformation Summit

        On April 20 - April 23 we will host the Ultimaker Transformation Summit. Come talk to us via Live chat and get inspired by any of our relevant presentations!
        • 7 replies
      • New here? Register your Ultimaker for free 3D printer 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
        • 0 replies
    ×
    ×
    • Create New...