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  1. #1
    Hi can anyone tell me what I'm doing wrong or missing out please.
    I’m trying to set up my Auto tool zero in Mach 3, for some reason it’s decided not to function correctly anymore.

    When i select the Auto tool zero button the Z axis starts to lower it’s self and stops when it make contact with the tool sensor.
    It then raises 10 mm and stops.
    When i select the GOTO switch the Z axis only lowers 10 mm and doesn't take into account the sensor thickness.

    This is the Script in my VB editor.

    'chengdu xhc tec. probe z surface macro
    FeedCurrent = GetOemDRO(818) 'Get the current settings, OEM DROs (818)=Feedrate DRO
    ZCurrent = GetOemDro(802) 'OEM DROs (802)=Z DRO
    GageH = GetOEMDRO(1001) 'OEMDRO(1001)=Gage Block Height
    ZNew = ZCurrent - 300 'probe down 20 mm

    Code "G90F200" 'slow feed rate to 100 MM/MIN
    SetOemDRO(818,200)
    Rem Code "G4 P1" 'Pause 1 second to give time to position probe plate
    Code "G31 Z" &ZNew
    While IsMoving()
    Sleep(10)
    Wend
    Call SetDro (2,GageH) 'DRO(2)=Z DRO

    FinalMove = GageH + 10
    Code "G0 Z" &FinalMove
    Code "F" &FeedCurrent 'restore starting feed rate
    SetOemDRO(818,FeedCurrent)

    Thank you
    Kev

  2. #2
    Are you entering the sensor thickness into the gauge height DRO?
    Gerry
    ______________________________________________
    UCCNC 2022 Screenset

    Mach3 2010 Screenset

    JointCAM - CAM for Woodworking Joints

  3. #3
    Hi Gerry thank you for the reply.
    I have tried to enter the sensor thickness in the DRO (Z axis) on the front screen but it cancels out when i select the GOTO button.
    I also tried entering it in the VB Script “Call SetDro (2,GageH) 'DRO(2)=Z DRO”
    To be honest i don't have a lot of knowledge in the subject

  4. #4
    I've Manged to work out the issue.
    The sensor thickness in the Offset colum didn't save the thickness reading.

    Thank you
    Kev

  5. #5
    I have tried to enter the sensor thickness in the DRO (Z axis) on the front screen but it cancels out when i select the GOTO button.
    No.
    The macro is looking in the Gage Height DRO for the sensor thickness. If you don't have it entered there, it's not going to work.
    Gerry
    ______________________________________________
    UCCNC 2022 Screenset

    Mach3 2010 Screenset

    JointCAM - CAM for Woodworking Joints

  6. hi you can use this

    FeedCurrent = GetOemDRO(818) 'Get the current settings, OEM DROs (818)=Feedrate DRO
    ZCurrent = GetOemDro(802) 'OEM DROs (802)=Z DRO
    GageH = GetOEMDRO(1001) 'OEMDRO(1001)=Gage Block Height
    ZNew = ZCurrent - 20 'probe down 20 mm

    Code "G90F100" 'slow feed rate to 100 MM/MIN
    Rem Code "G4 P1" 'Pause 1 second to give time to position probe plate
    Code "G31 Z" &ZNew
    While IsMoving()
    Sleep(10)
    Wend
    Call SetDro (2,GageH) 'DRO(2)=Z DRO

    FinalMove = GageH + 10
    Code "G0 Z" &FinalMove
    Code "F" &FeedCurrent 'restore starting feed rate

  7. #7
    Quote Originally Posted by stepmores View Post
    hi you can use this

    FeedCurrent = GetOemDRO(818) 'Get the current settings, OEM DROs (818)=Feedrate DRO
    ZCurrent = GetOemDro(802) 'OEM DROs (802)=Z DRO
    GageH = GetOEMDRO(1001) 'OEMDRO(1001)=Gage Block Height
    ZNew = ZCurrent - 20 'probe down 20 mm

    Code "G90F100" 'slow feed rate to 100 MM/MIN
    Rem Code "G4 P1" 'Pause 1 second to give time to position probe plate
    Code "G31 Z" &ZNew
    While IsMoving()
    Sleep(10)
    Wend
    Call SetDro (2,GageH) 'DRO(2)=Z DRO

    FinalMove = GageH + 10
    Code "G0 Z" &FinalMove
    Code "F" &FeedCurrent 'restore starting feed rate

    Thank you for the reply, i've managed to get it working now but i will keep it for futher refence.

    Cheers
    Kev

  8. #8
    kell's Avatar
    Lives in doncaster, United Kingdom. Last Activity: 05-08-2023 Has been a member for 9-10 years. Has a total post count of 53.
    If my gauge height is 19.10mm how would the code change as i am unsure where it is entered.
    And i will try this code on my machine as i am trying to get a zero z script to work

  9. #9
    Quote Originally Posted by kell View Post
    If my gauge height is 19.10mm how would the code change as i am unsure where it is entered.
    And i will try this code on my machine as i am trying to get a zero z script to work
    It will be a constant in the probe macro you are using. Post the macro and will take a look.
    -use common sense, if you lack it, there is no software to help that.

    Email: [email protected]

    Web site: www.jazzcnc.co.uk

  10. #10
    kell's Avatar
    Lives in doncaster, United Kingdom. Last Activity: 05-08-2023 Has been a member for 9-10 years. Has a total post count of 53.
    Quote Originally Posted by JAZZCNC View Post
    It will be a constant in the probe macro you are using. Post the macro and will take a look.
    Hi dean
    long time. i have a code here that is on machine but it gose down and touches then gose up about 50mm then when i remove probe and click goto zero it only moves about 25mm down

    CurrentFeed = GetOemDRO(818) 'Get the current feedrate to return to later
    CurrentAbsInc = GetOemLED(48) 'Get the current G90/G91 state
    CurrentGmode = GetOemDRO(819) 'Get the current G0/G1 state

    If GetOemLed (825)=0 Then 'Check to see if the probe is already grounded or faulty
    DoOEMButton (1010) 'zero the Z axis so the probe move will start from here
    Code "G4 P3" ' this delay gives me time to get from computer to hold probe in place
    Code "G90 G31 Z-50 F255" 'probing move, can set the feed rate here as well as how far to move
    While IsMoving() 'wait while it happens
    Wend
    ZProbePos = GetVar(2002) 'get the exact point the probe was hit
    Code "G0 Z" &ZProbePos 'go back to that point, always a very small amount of overrun
    While IsMoving ()
    Wend
    Call SetDro (2, 19.10) ' change .060 to your plate thickness and then adjust for final accuracy
    Sleep 200 'Pause for Dro to update.
    Code "G1 Z25 F50" 'put the Z retract height you want here, must be greater than the touch plate thickness
    While IsMoving ()
    Wend
    Code "(Z axis is now zeroed)" 'puts this message in the status bar
    Code "F" &CurrentFeed 'Returns to prior feed rate
    Else
    Code "(Z-Plate is grounded, check connection and try again)" 'this goes in the status bar if applicable
    End If
    If CurrentAbsInc = 0 Then 'if G91 was in effect before then return to it
    Code "G91"
    End If
    If CurrentGMode = 0 Then 'if G0 was in effect before then return to it
    Code "G0"
    End If

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