Jump to content
Ultimaker Community of 3D Printing Experts

UM2 Mainboard Stepper Driver


Recommended Posts

Posted · UM2 Mainboard Stepper Driver

Hi everyone.

I am building my first 3D printer. I assembled everything. But when I turn the printer on, the stepper motor connected to the Y-axis is not turning, it steps forwards and backwards and makes strange movements (as if it vibrates). All other steppers turns smoothly. I replaced the steppers so the problem is not the motors. Something is wrong with the Y-axis driver on the main board. (I order the board from China since the genuine one is 3-4 times more expensive in my country.)

I am not familiar with the stepper drivers or arduino so my question is this, is there something wrong with the driver (a4988) or something wrong with the software or other electronic (resistors or something.)?

Has anyone experienced that behavior before?

Thank you in advance.

  • Link to post
    Share on other sites
    Posted · UM2 Mainboard Stepper Driver

    If one of the 4 wires is broken you will get similar results so swap the Y stepper with another stepper just to make sure it's the board. If the problem is still with the board then you should just buy a whole new board. It could be many components - the driver itself or any of the capacitors or resistors nearby. Or a bad board etch (not likely).

  • Link to post
    Share on other sites
    Posted (edited) · UM2 Mainboard Stepper Driver

    On a um2 board you have a extra output for a stepper. You could probably remap this extra one to be the y-axis in firmware assuming you don't need dual extrusion....

    I think it has been described on this forum before but i'm to lazy too look for it now as I'm on my phone.... so see if you can google it.... otherwise ask again..

    Edited by Guest
  • Link to post
    Share on other sites
    Posted · UM2 Mainboard Stepper Driver

    If one of the 4 wires is broken you will get similar results so swap the Y stepper with another stepper just to make sure it's the board.  If the problem is still with the board then you should just buy a whole new board.  It could be many components - the driver itself or any of the capacitors or resistors nearby.  Or a bad board etch (not likely).

     

    I try that, it is not about the motors, something is wrong with the board.

  • Link to post
    Share on other sites
    Posted · UM2 Mainboard Stepper Driver

    On a um2 board you have a extra output for a stepper. You could probably remap this extra one to be the y-axis in firmware assuming you don't need dual extrusion....

    I think it has been described on this forum before but i'm to lazy too look for it now as I'm on my phone.... so see if you can google it.... otherwise ask again..

     

    This is exactly what I think but I can not find anything.

  • Link to post
    Share on other sites
    Posted · UM2 Mainboard Stepper Driver

    This is exactly what I think but I can not find anything.

     

    Swap Y-Axis with E2-Axis

  • Link to post
    Share on other sites
    Posted · UM2 Mainboard Stepper Driver

    Thank you very much.

     

     

    This is exactly what I think but I can not find anything.

     

    Swap Y-Axis with E2-Axis

     

  • Link to post
    Share on other sites
    Posted (edited) · UM2 Mainboard Stepper Driver

    Thank you all for your help :)

    Edited by Guest
  • 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
    ×
    ×
    • Create New...