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Z axe going up to max when starting job instead of down to cut

Discussion in 'General Talk' started by samuel kalika, Jan 25, 2024.

  1. samuel kalika

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    Hi threre!
    So I got my first drawing ready: an attachment for the vacuum on the spindle. Calibration OK, Homing OK, probe OK, but when I click on start job (Openbuilds Control software), the spindle moves up to the max until I get the error Alarm 1: Hard limit triggered.
    Any clues??
    I uploaded my gcode in case it would help. I produced it with Fusion 360. Also uploaded my GLBR.

    Thanks in advance for the help!
     

    Attached Files:

  2. samuel kalika

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    Ah and I'm running what I understood is a custom Openbuilds sold by RatRig here in Portugal, called Stronghold Pro 150x100 with a Router11.
     
  3. samuel kalika

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    As an extra info I also got a sudden ! alert on the blackbox x32 on the Z axis and it won't move anymore.
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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  5. David the swarfer

    David the swarfer OpenBuilds Team
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    lets read the gcode, it is just text after all
    Code:
    (Operation 1 of 4 : Adaptive1)
    G54
    (This relies on homing, see https://openbuilds.com/search/127200199/?q=G53+fusion )
    G53 G0 Z-10
    G0 X221.544 Y22.892
    M3 S18000
    G4 P1.8
    G0 X221.544 Y22.892 Z15
    Z5
    
    So, it is using G53 , the machine coordinate system, to move Z safely up to 10mm below the home point.
    the home point is the top of Z motion.
    you did home , right?
    always, always, home before working.
     
    Peter Van Der Walt likes this.
  6. Alex Chambers

    Alex Chambers Master
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    upload_2024-1-25_18-14-35.png

    Did you upload the acro machine profile to your blackbox?

    Ratrig are official Openbuilds re-sellers, but the stronghold machines are their design.

    Alex.
     
  7. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Yeah thats the mistake...

    The Acro profile doesn't Home Z (As the Acro is a 2-axes machine - it doesn't even have a Z)

    From your backup:
    $44=3 ; Homing cycle 1
    $45=0 ; Homing cycle 2

    Because you used the wrong profile, those are incorrect

    Set it as
    $44=4 (which homes Z first)
    $45=3 (then XY)

    Not quite, didn't you notice Z never does a homing move :)
     

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