Jump to content
Ultimaker Community of 3D Printing Experts

Initial layer height


Recommended Posts

Posted · Initial layer height

I have a Prusa-type filament printer (Geeetech).


I have been experimenting with the clearance between nozzle and bed and have found that a smaller clearance produces a better adhesion brim. It seems to stick more securely to the glass plate and, being thinner, is easier to remove.


The problem is that the Initial Layer Height in Cura is set to 0.3mm, which means my models are slightly shorter in the Z-dimension than they should be. I can set this to, say, 0.1mm (Custom Settings) but I have a question. Does this just affect the slicing calculation (i.e. more layers), or does it also affect the extrusion rate for the initial layer and/or the Z height of subsequent layers?





  • Link to post
    Share on other sites

    Posted · Initial layer height

    If you set initial layer height to 0.3mm it extrudes 3X as much filament on the first layer versus if you set the initial layer height to 0.1mm.  That's not what you asked but I think it answers your question.


    Also it will set the Z=0.3mm if you set initial layer height to 0.3mm.


    There is an "initial layer flow" feature which you can set to 200% for the first layer if you want.  And then you can also set "initial layer horizontal expansion" to about -0.25mm (for a 0.4mm nozzle).  If you play with all these enough you can have it all.


    By the way, yes, squishing harder on the first layer greatly increases adhesion to the bed.  I have a video about this:


  • 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.
        • 13 replies
    • Create New...