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  1. #11
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    It fixed the x and y axis, but z motor is still extremely slow.
    Last edited by Roxy; 09-17-2014 at 02:32 PM.

  2. #12
    Super Moderator Roxy's Avatar
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    It is slow during Homing? Or all the time? You set that by changing these values:

    #define HOMING_FEEDRATE {50*60, 50*60, 4*60, 0} // set the homing speeds (mm/min) Set to 7 or 8 *60 if your hardware can handle it.
    #define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec) Bump this up to 50 to go faster... Or even higher if you dare and have a reason to.
    #define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000} // probably 200 or 300 is safe here

  3. #13
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    i figured it out!!

    It was
    #define DEFAULT_AXIS_STEPS_PER_UNIT {78.7402,78.7402,400.0*8/3,760*1.1} // default steps per unit for Ultimaker

    Thank you so much for your help Roxy.

  4. #14
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    Ugh.....troubles never end!!!!!

    The servo does not retract before printing begins.

    Help please!!

  5. #15
    Super Moderator Roxy's Avatar
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    Can you engage and retract the server using the M280 command? Can you post your Configuration.h file please.

  6. #16
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    Yes the M280 command works.
    Attached Files Attached Files

  7. #17
    Super Moderator Roxy's Avatar
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    Did you do a G29 ? That should retract it. But I know what you are seeing. I just fixed it in my copy of the code 30 minutes before you posted. In Marlin_main.cpp search for

    static void homeaxis(int axis) {

    Go about 70 lines further down in the file. Change the code block:


    #if defined (ENABLE_AUTO_BED_LEVELING) && (PROBE_SERVO_DEACTIVATION_DELAY > 0)
    if (axis==Z_AXIS) {
    do_blocking_move_relative(0, 0, Z_RAISE_BETWEEN_PROBINGS);
    retract_z_probe();
    }
    #endif

    to include the retract_z_probe(); function call. You will need to add everything in RED.

  8. #18
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    do_blocking_move_relative(0, 0, Z_RAISE_BETWEEN_PROBINGS);

    was not in my code

  9. #19
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    ok, i get what your saying

  10. #20
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    And more troubles. I am going to give up on auto leveling soon. Takes less time to manually level the bed.

    The nozzle starts printing a few mm above the bed.

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