Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login
    1. Home
    2. genewild
    • Profile
    • Following 0
    • Followers 0
    • Topics 0
    • Posts 1
    • Best 0
    • Controversial 0
    • Groups 0

    genewild

    @genewild

    0
    Reputation
    1
    Profile views
    1
    Posts
    0
    Followers
    0
    Following
    Joined Last Online

    genewild Unfollow Follow

    Latest posts made by genewild

    • RE: Maximum Acceleration Calculator

      Hi! Thanks for making this tool, it is very handy.

      I'm currently trying to grasp the limitation of accelleration on stepper motor drives. I've used your calculator on a few motors, and i noticed that generally people report running 2-4 times higher accelleration on their printers before running into issues than your calculator says is possible.

      I am not sure these printers actually run at the requested speed, but certainly there is some difference between running at the speed your calculator produces and a vastly higher speed, i can see that on my own printer which accellerates more violently.

      So i am wondering, what gives? Shouldn't the stepper skip steps if you ask it to go TOO fast? The stepper driver has no feedback loop to tell. I can't notice lost steps below 20.000 mm/s² accelleration using really small NEMA 17 motors with only 1.68 A capability and a rated torque of only 36Ncm, inertia of 54 g/cm² driving a rather heavy gantry at 800gr.

      I would really apprechiate if someone could explain this discrepancy to me, i am not very familiar with stepper drives.

      posted in Tuning and tweaking
      genewildundefined
      genewild