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Ramps Stepper Driver Question

Discussion in '3D printers' started by Sc00ter, Oct 7, 2014.

  1. Sc00ter

    Sc00ter New

    Sep 9, 2014
    Likes Received:
    I'm currently trying to use an OX router as a 3D printer to print some parts so that I can build a Lautr3k
    printer. X, Z, E axis all working perfectly! Extruder working well too!

    Y axis continues to lose steps. I'm driving 2 Nema 23's on the Y axis and assume the A4988 onboard driver can't handle the load?!?!? I've slowed down feed rate, jerk, and acceleration to the point that it's excruciating to watch it print. 12v 30a Power supply

    Can I just wire STEP-DIR-EN-5V from the Ramps shield to an external driver? Do I have to worry about voltages ie 3.3v or 5v compatibility?

  2. Tweakie

    Tweakie OpenBuilds Team
    Staff Member Moderator Builder

    Jan 18, 2014
    Likes Received:
    Hi Scott,

    Each stepper motor should have it's own driver (generally software slaved Y & A when two motors are used on a Y axis).


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