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  1. #1
    Junior Member
    Join Date
    Dec 2016

    Y axis not repeating

    Hello all. I have a fineline automation cnc router with a gecko 540 ESS warp9 smooth stepper and I finished my build however my y axis does not repeat. When cutting around a rectangle the X is fine but the Y loses about .05 per pas but not on a constant basis. I have Mach 4 set at 1735 steps per with velocity of 400 and accel of 25. My machine had linear guides and a rack and pinion. I'm lost and any help would be greatly appreciated
    Attached Thumbnails Attached Thumbnails A9A70422-FCFF-44F5-96E9-985645A567ED.jpg   0AE88D62-BBF2-4F3D-A48E-E9F69538A995.jpg  

  2. #2
    Join Date
    Jan 2007

    Re: Y axis not repeating

    Can you try swapping motors around so a different axis is controlling the X and Y? You will need to change your pins in Mach4 as well. I want to see if the problem stays on the Y axis or if it tracks a specific drive on the G540.

    My gut feeling is that this is a problem with either too aggressive of an acceleration profile or too high of a speed for the given power supply voltage. What is your power supply's voltage and current rating?
    Marcus Freimanis

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