Motor 1 just stopped working

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  • December 11, 2015 at 5:04 pm #9108
    KingBubbaTruck
    Member

    So, I got my new board the other day and finally got around to installing it and setting it up.

    Had it working fine, all configured and was working on a project.

    My vac boot was a little low, so I hit the feedhold button in chilipeppr, clicked the button to fully energize the motors to prevent it from moving, adjusted the vac boot, un-clicked the fully energize button and clicked resume.

    And then the bit just went straight across the workpiece. The axis I have motor 1 on just quit working.

    I can’t get it to jog in that direction at all. I click jog, the motor lights on the tiny g all lite up for a second, the motor makes a ‘tic’ noise, but no movement. The other axis work just fine.

    Any ideas or what to check?

    December 11, 2015 at 5:42 pm #9109
    KingBubbaTruck
    Member

    Never mind. I just let it sit for a while and it came back.

    Nothing seemed to have over heated, but its working fine now.

    December 11, 2015 at 6:39 pm #9110
    cmcgrath5035
    Moderator

    Wierd.

    There is a thermal shutdown ckt inside the driver device, so that is therefor a possibility but your comment would seem to imply doubtful.

    It might be interesting to try to reproduce, to best of your recollection.
    Try running the job in air (no need to waste material), freehold the job for the same amount of time (more or less) with motors energised same (or perhaps a bit longer) duration, then see if it resumesOK.

    Do you have a fan blowing on tinyG?
    (Carefully) finger test the x driver device at end of the freehold-energize cycle.

    Are you running at a high current level setting (on pot)?

    December 12, 2015 at 11:33 am #9115
    KingBubbaTruck
    Member

    I ran it a bunch yesterday after that incident and it worked perfectly.

    I do have a fan mounted under the board, and it was around 38 degrees F in the garage.

    I did have the current turned all the way up. The stepper motors I have can use more current than the tinyg can supply so figured I should have them cranked. I’ve turned them all down to about 75% now though.

    Going to go work with it some more today, but so far so good!

    December 12, 2015 at 2:38 pm #9119
    cmcgrath5035
    Moderator

    Brrr. You should be thermally good under those conditions.

    Some folks have reported strange side effects to making parameter changes, such as changing X velocity, then X will only move in one direction when jogged, moves same direction irrespective of arrow push. Then it starts to behave normally again.

    Obviously, can’t be doing a hard reset after changes during a freehold, etc.

    Keep an eye open and report, thanks.

    December 23, 2015 at 4:50 pm #9182
    KingBubbaTruck
    Member

    And it happened again, but this time it seems like it might be permanent. I’ve got motor 1 hooked up to the Y and when I try to jog it, I hear a faint noise coming from the motor, but no movement. Keep in mind this was working fine just a couple of days ago. Nothing has changed since it worked, although it’s a balmy 38 degrees fahrenheit in the garage.

    I disconnected the motor cables and swapped it over to Motor 4 just to see if it was the stepper or the board, and the stepper worked fine on motor 4.

    So, I’m thinking the motor 1 channel must just be borked somehow. I tried changing the amount of current going to the motor up and down using the pot, no difference. Just a faint amount of noise from the motor.

    December 23, 2015 at 5:18 pm #9183
    cmcgrath5035
    Moderator

    I saw your message on the contact-us web interface.

    Riley will get back to you – sounds like a hardware issue

    December 23, 2015 at 5:33 pm #9184
    KingBubbaTruck
    Member

    Thanks!

    I did send a message.

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