Jump to content

Small 90 degree overhangs without support


Recommended Posts

Posted (edited) · Small 90 degree overhangs without support

Hello everyone, 


I'm trying to figure out what settings might be most efficient for these types of overhangs. If you look at the images I've attached, you can see that the extruder starts to fill the 'bottom' of the circles in mid air. is there a setting that could possibly connect this with the shell instead of extruding in mid air to start the 'bottoms' (or tops depending on how you look at it) of these circular recesses? I've printed the part and since it starts like this the filament just ends up garbled in the hole. I'd like more precision of course. Support is one method, of course. This is only about 8 mm bridge which I feel like I should be able to get away with if it's connected to the shell.




Thanks for reading and for your input, in advance. Happy Holidays y'all!


Erik O.

EO part 2 overhang.PNG


This picture is level 8 

EO part 1 overhang.PNG

Edited by egoaudio
add detail to photo
  • Link to post
    Share on other sites

    Posted · Small 90 degree overhangs without support

    It would be helpful to see the complete layer 9 but I'm guess that it ends up with some skin partially covering the 3 big holes. Anyway, you have 2 options: (1) use support or (2) make the skin on layer 9 completely cover the holes and then drill them out when the part has completed. The skin only needs to be a single layer thick. I use this technique always when I have a small diameter hole directly above a larger diameter hole (i.e. when you have a nut trap or similar. Here's what I mean...








    Hope this helps!


    • Like 1
    Link to post
    Share on other sites

    Posted · Small 90 degree overhangs without support

    Thanks smartavionics! where do you add the skin? the model/cad program? or within cura?


    I'm not trying to have a small hole within the larger hole by the way. just trying to have a recessed hole with a 'ceiling'. I'm going to put rubber feet on the bottom of this part so it doesn't slide around and a flat surface here would help with the rubber feet to adhere.


    Support the best avenue then?

    EO part 3 overhang.PNG

  • Link to post
    Share on other sites

    Posted · Small 90 degree overhangs without support

    Ah, understood. In that case you don't need to add the extra skin if you use lines or zigzag for the skin pattern because then the skin should span the hole OK. Using the concentric pattern is a problem, it won't even work using the technique I show above.


    The easiest way to add the extra skin is designing it into your model when you create it.

  • Link to post
    Share on other sites

    Posted · Small 90 degree overhangs without support

    Thank you my good man! I suppose that's why I don't recall having these issues previously.... I must not have been using concentric for the bottom. 


    I'll keep on printing! Happy holidays. 


  • 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...