zbird

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  • June 13, 2012 at 11:15 am in reply to: Y axis doesn’t drive stepper #1898
    zbird
    Member

    Yes, I changed my grbl settings and re-flashed. I’m going to switch out the Uno today (brand new) and if that doesn’t work, I will email you. Thank you very much.

    June 11, 2012 at 2:55 pm in reply to: Y axis doesn’t drive stepper #1896
    zbird
    Member

    So I can see the schematics for TinyG are indeed for a 3 axes and not 4 so this must be grblshield.

    In reference to ground with all three motors running, I’m getting:
    X-> 5V @ pot via and 2.4V at all pins
    Y-> 5V at pot via and 4.2, 3.0, 4.3, 3.0 at pins 1,2,3,4 respectively
    Z-> 5V @ vref via (no pot via) and 2.4V at all pins

    If I increase currency at pot on Y any higher, it shuts down.

    Thanks.

    June 8, 2012 at 2:22 pm in reply to: Y axis doesn’t drive stepper #1895
    zbird
    Member

    One more tidbit, I can drive X by itself but not Y (but do get the back and forth on spindle and slow flashing). Z does nothing but LED is steady when tested alone. So, Z only drives when X is also hooked up.

    June 8, 2012 at 1:55 pm in reply to: Y axis doesn’t drive stepper #1894
    zbird
    Member

    Sorry, somehow my first post never made it to this forum. Yes, I tried switching all the wired around and can drive all motors from X – all wiring good. Sending a command like g0x1000 drives X – all LEDs light up with X blinking rapidly and YZ steady.

    Sending a command g0y1000 drives Z motor – all LEDs light up with Z blinking rapidly and XY steady at first – then Y LED begins to flash slowly and motor attempts to move (is in sync with LED flashing) but hits torque (?) and returns back one step (about 1 mm back and forth). Z continues turning with its LED blinking rapidly.

    Sending a command g0z1000 causes X and Y LEDs to light steady at first, then same Y behavior begins (slow Y LED flash and step back and forth 1mm), X remains steady. Z is dark/no movement throughout.

    I’m looking for schematics to test voltage at Y but only finding TinyG for grblshield v2 (I followed link to github). Am I looking in the wrong place?

    Thanks!

    June 7, 2012 at 10:29 pm in reply to: Y axis doesn’t drive stepper #1891
    zbird
    Member

    Hi and thanks for replying. I loaded grbl 7d using XLoader (Windows 7) and that is supposed to be the latest firmware. I can $ receive current configs and change those settings successfully. I’ve used gcodesender and coolterm, changed wirings, etc. BTW, I’m using the grblshield not tinyg – does this make a difference? When I loaded with XLoader I had to change baud to 11900 instead of 9600 to make it flash – but now sending commands at 9600. If a hardware issue, how might I check the Arduino vs grblshield?

    June 7, 2012 at 9:10 pm in reply to: Y axis doesn’t drive stepper #1889
    zbird
    Member

    Also, I’m using grbl 7d and my motor leads are blk 1A, grn 1B, red 2A, blue 2B. Sending a command like g0 x100 y100 z0 causes x to move and z to move. Any suggestions?

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