Jump to content
Ultimaker Community of 3D Printing Experts

Bottom of print not as expected


Recommended Posts

Posted (edited) · Bottom of print not as expected

Hi all,

I'm hoping someone can explain what I am doing wrong here.

I uploaded some images in an Imgur album here:



As you can see, one of the flat sides is filled solid, without gaps. This is the top side of the print.

But the other one has a lot of space between the lines, and irregularities. This is the bottom side of the print.

The last picture is from the side.

I'm using a UM2 with the following settings:



I don't understand why the bottom side is so rough compared to the top side.

Can anyone shed some light on how/why this is happening?

Thanks in advance!

Edited by Guest
  • Link to post
    Share on other sites

    Posted · Bottom of print not as expected

    Hi and welcome,

    I think that you need to level the build plate a bit closer to the nozzle.

    The first layer needs to be squished more. In your case it looks like the first layer is not squished but rather "layed".

    The first layer in your case looks like the lines are piece of round filament, it needs to be flat.

    If the first layer is almost transparent you are to close, if the lines are not closed you are to far.

    More information can be found here

  • Link to post
    Share on other sites

    Posted · Bottom of print not as expected

    Hi DidierKlein,

    Thanks for your reply. This does make a lot of sense. I'll re-calibrate the build plate and give it another shot. I'll let you know the results.

  • Link to post
    Share on other sites

    Posted · Bottom of print not as expected

    You are welcome :)

    Also if possible please upload your next pictures directly on the forum (Go to albums in your profile and upload pictures there and the use the image gallery button here on the forum :)

    Good luck with your next print!

  • 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

      • New here? Get ahead with a free onboarding course
        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...