Jump to content

Linearly Reduce Print speed


Recommended Posts

Posted · Linearly Reduce Print speed



How can I linearly reduce print speed ? I have a tree like model which tapers at the top, and I want to print slower as layer number increases, since this will reduce the shaking effect at top layers. ( I have ender 3 pro, table not static )

  • Link to post
    Share on other sites

    Posted (edited) · Linearly Reduce Print speed

    I dont know if there is a feature in cura to control that.


    You can manually edit the gcode and adjust the feed rate but not sure how that would affect the extruding.

    Would assume you would need to adjust both but that extruder would be difficult to modify in the g code file.


    Could just play around and see what you get though.


    If you need help let me know.



    Edited by vuldust
  • Link to post
    Share on other sites

    Posted · Linearly Reduce Print speed

    The only setting that will affect the calculated speed in the gcode are "Minimum Layer Time" and the related "Minimum Speed".  If Cura detects that a layer would go down too fast so that a previous layer didn't have time to cool) then the speed is adjusted so that the minimum layer time is met.


    There are a couple of things you can manually add to a gcode file.  I also have an Ender 3 Pro and on tall models I add an M201 Y300 line at around a Z of 100.  That limits the accel on the Y axis so the print doesn't shake or break loose.  You can do that with a search and replace like:

    Search = ;LAYER:500\n

    Replace = ;LAYER:500\nM201 Y300

    The check box for "Use regular expressions" must be checked so the "\n" newline expression is acknowledged.


    You can do the same sort of thing for speed using a couple of Search And Replace instances.  M220 S80 would reduce the print and travel speeds to 80% of whatever is in the gcode.

    Search = ;LAYER:500\n

    Replace = ;LAYER:500\nM220 S80

    and a second instance of Search and Replace could be:

    Search = ;LAYER:750\n

    Replace = ;LAYER:750\nM220 S60

    Once again, the "Use Regular Expressions" box would need to be checked.


    Something like that should work.  You can hand code them in at the appropriate height as well.  I have M220 S100 and M221 S100 in my End Gcode to reset the feed and flow rates to 100% just in case I make adjustments during a 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

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    • Create New...