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  1. #1
    Quote Originally Posted by Oldy View Post
    Thanks for the reply, it is much appreciated.
    The Cancnc forum was helpful, and it got me through initial set up issues, however, the latest problems don’t seem like easy fixes.
    I tried all sorts of configurations on the motors (pins and outputs) but nothing seems to change the problem.
    The strange thing is that each time I start up, the problem seems slightly different. On one start up everything worked fine, but without changing anything, the very next start up, had the gantry making a graunching sound, and randomly jiggling around.
    I am going to try disconnecting all the interface cables and check for pin problems etc. The MP3000e box looks pretty battered about.

    Thanks again.
    Mmmm, you could be right about it being connection issues then. If you can get some Servisol Super 10 contact cleaner, spray that onto the connectors, then give them a vigorous plugging and unplugging say 10 times apiece - that will help remove any surface oxidation.

  2. #2
    If it's only going in one direction with either keypress on just one axis then it's usually 99% of the time a Bad Connection on the Direction Pin. It's certainly the first place to look.
    If it's doing this on more than one axis then I'd look at the Keyboard first and just replace it.

    After this, it starts getting a bit more into the unknown and could be anything from bad connection/broken wire to controller or drive on it's way out.?? . . . . More info would be needed to advise properly.
    Last edited by JAZZCNC; 19-09-2019 at 06:36 PM.

  3. #3
    On my 3dD printer, there is one cable that connects a stepper that moves a lot, I have changed it twice in the lifetime of the printer as a cable intermittent break causes it to be biased in one direction. The same has happened on the Z axis of my CNC router and that was also a break in one conductor of the stepper cable.
    Last edited by cropwell; 19-09-2019 at 08:47 PM.

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