Jump to content
Ultimaker Community of 3D Printing Experts

rapid Z axis movement on first positioning


Recommended Posts

Posted (edited) · rapid Z axis movement on first positioning

after working through 'beforePrintStarted' script routines cura issues a


G0 F6000 X.. Y.. Z0..


if X and Y coordinates are small the high feed rate maxes out the Z rate and plunge
the print head in a quite 'unseemly' acceleration and speed toward the build plate,
former versions of cura issued F3600 which behaved more moderate

to avoid rapid Z axis movement on first positioning I cured the questionable sequence with cura's post processing module


cura/menu/extensions/post processing/modify g-code - search and replace

search:   (F6000)( X.+Y.+Z0.+)
replace:   F3000\2
regExp:   yes


F6000 X.. Y.. Z0..
F3000 X.. Y.. Z0..


there should be only one line with F6000 with Z0.. coordinate, so check your 'beforePrintStarted' script


regExp explanation
group 1 = F6000          -> F3000
group 2 = X.. Y.. Z0..   -> \2


(printer Creality CR-10S, cura 4.3)

Edited by qrti
  • 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
        • 13 replies
    • Create New...