Jump to content
Ultimaker Community of 3D Printing Experts

acceleration parameters

Recommended Posts

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?


Share this post

Link to post
Share on other sites

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.


Share this post

Link to post
Share on other sites

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.

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

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 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!