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?





  • Share this post

    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:


  • Share this post

    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

      • Talking additive | The 3D printing podcast
        Why should we be the only ones asking questions? Join us and ask Jabil all your questions on September 22nd 5pm CET
          • Like
        • 3 replies
      • Ultimaker masterclass: Optimizing your Ultimaker Cura workflow
        Save your seat for either broadcast on September 23.
        What will you learn?
        · Best practices for iterative print preparation and every lesson you should learn from each print
        · The right way to use per-object settings and when they are most useful
        · Easy-to-use resources for anyone who wants to develop their own printer definitions, plugins, or print profiles
        · How to optimize print profile settings and whether to “keep” or “discard” changes
        · When is the right time to export your drawing from CAD? (Based on Ultimaker Cura’s surprising power as 3D control software)
        · And a whole lot more tips and tricks!
        How can I join?
        This free masterclass will take place twice:
        1. 11am CEST (5pm SGT, 5am EDT)
        2. 5pm CEST (11am EDT, 8am PDT, 11pm SGT)
          • Like
        • 0 replies
      • Do you use 3D printing at work? Let us know
        It doesn't matter if you are using 1 Ultimaker or 10, there is inspiration in everything. We're looking for ...
        • 1 reply
    • Create New...