Jump to content
Ultimaker Community of 3D Printing Experts

UM3 Cura2.3.1 adds 3 starting layers PVA at buildplate

Recommended Posts

Hi all together,

I tried hard in Cura 2.3.1 to eliminate these 3 unnecessary layers of support, which have been added by cura. If I use only one single extruder, my object is placed directly to the buildplate. But if I activate the second extruder using PVA, I have three additional layers under my object.


The 4th layer is regularly sliced in PLA.


I tried with a custom profile and a standard profile as well, both leads to the same issue. I figured out, that there is obviously a setting in mm, because the layers differ if I change the profile to another layer height.

Has anybody an idea, how to switch off these starting layers? I'm not willing to waste PVA, where it isn't needed.

Many thanks for your reply in advance and merry Christmas to all of you.

Best regards


(writing with Alexandra's account)

Edit 23.12.2016:

I figured out, that the round part causes that behavior. If I split the parts to single ones and load it afterwards in Cura, only the big round part has support on its flat side.



Edited by Guest

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

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 130 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!