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Thread: Strange problem

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  1. #1
    Quote Originally Posted by AndyUK View Post
    Is the direction that they now only move in the same direction as they move when homing?

    It may just be that the settings are all screwed until it completes a homing cycle correctly. e.g the machine thinks its in some stupid position, and will only move towards it's expected correct range. Maybe X thinks its at -1000 and knows its only allowed to be -500 to +500, so will only move +ve until it thinks it reaches -500.

    First thing to try is disabling soft limits. That should prevent the system babysitting your positioning.
    I am able to travel positive and negative until I do a homing. The homing is travelling in the negative direction. After homing I can travel only in positive directions, regardless of which direction I choose.
    I checked the wiring this morning and found that the Y axis limit was badly connected. This caused the homing fail. I fixed that and was able to home successfully after that, but the X and Y will still only travel in the positive direction, even if I select negative travel.
    I disabled homing and soft limits, and tried again after resetting the computer and the machine.
    After manually positioning the tool in the home position and setting zero X and Y, I am able to move in both directions no problem. But setting the travel lengths to the numbers shown on the screen, I am able to travel and stop in the correct positions and using the home button, return to the zero X Y that I set.
    Once I turn on homing the problem starts again, so it must be something to do with the homing setup I think. I checked the limit switches and they are all OK now.
    The homing direction is correct for my machine, but maybe it isn't?? I am homing to the front lefthand corner.
    Last edited by regpye; 17-03-2021 at 01:20 AM. Reason: additional information

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