Jump to content

acceleration parameters


tomnagel

Recommended Posts

Posted · acceleration parameters

I wish to decrease acceleration, to see the effect on the ringing artefact.

Browsing through my UltiController Menu (on UMO), I see a parameter " Accel" on 3000, and a bit further down I see "Amax n" for n={x,y,z,e}. Values at 9000, 9000, 100, 10000.

What is the meaning of the first "Accel" parameter, which is set at 3000?

 

  • Link to post
    Share on other sites

    Posted · acceleration parameters

    I believe the "Accel" parameter is the rate of acceleration used for X, Y, Z and E steppers when performing a move while printing. While "Amax n" limits the acceleration per stepper when performing a non-printing move.

     

  • Link to post
    Share on other sites

    Posted · acceleration parameters

    I believe "Amax n" for n={z}. 200-500 somewhere. Also my machine is set to 300mm/s travel speeds.

    Have a read here though

    Gr5 said he doubled Az and Vz, whereas the following article increased it way more:

    http://www.extrudable.me/2013/04/02/the-myth-of-z-speed/

    Be careful however when the printer starts a print, that goes really fast!

     

  • Link to post
    Share on other sites

    Posted · acceleration parameters

    I have set Vmax z to 24 instead of 10, and Amax z to 400.

    This is especially noticable in the 15mm z-move at the beginning of each print.

    I have yet to see whether it decreases the z-scar.

     

  • Link to post
    Share on other sites

    Posted · acceleration parameters

    In my opinion, the default acceleration settings for XY are way too high, and for Z and E are too low.

  • Link to post
    Share on other sites

    Posted · acceleration parameters

    Basically it uses the accel settings.

    If I remember right, Amax is kind of a bug fix if Marlin miscalculates or panics and isn't supposed to be used. It should be higher than the default accel settings. I never quite understood that myself even after reading the code very carefully for many hours.

  • 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 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
         
          • Like
        • 7 replies
      • 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
    ×
    ×
    • Create New...