Z axis problem

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  • May 7, 2018 at 1:59 pm #10976
    kwlabs
    Member

    I recently dusted off this board (version 5b), upgraded grbl to v1.1 and connected everything to my Zen Toolworks 7X7 CNC. The X and Y axis move normally, but I cannot get the Z axis to move. I plugged the X/Y axis from the gshield to the Z stepper motor and it works. If I plug the Z axis from the board into either the X or Y axis motors, those stop working. Seems to be an issue with the Z axis from the gshield. If I turn up the pot, the motor gets louder without moving. I don’t see anything wrong physically, so I am wondering if my settings may be causing the problem (shown below)? Any help would be greatly appreciated!

    Grbl 1.1f [‘$’ for help]
    $0=10
    $1=25
    $2=0
    $3=0
    $4=0
    $5=0
    $6=0
    $10=1
    $11=0.020
    $12=0.002
    $13=0
    $20=0
    $21=0
    $22=0
    $23=0
    $24=25.000
    $25=250.000
    $26=250
    $27=1.000
    $30=1000
    $31=0
    $32=0
    $100=200.000
    $101=200.000
    $102=200.000
    $110=6000.000
    $111=6000.000
    $112=6000.000
    $120=600.000
    $121=600.000
    $122=600.000
    $130=190.000
    $131=180.000
    $132=150.000

    May 14, 2018 at 11:52 am #10986
    BryanHolocker
    Member

    I may have the same problem. I sent this email to customer support and am waiting for a reply. Have you had any luck ?

    Good Morning,
    I hooked up the gShield to the Arduino Due and followed the setup information from this site:
    https://github.com/synthetos/grblShield/wiki/Using-grblShield

    I have 3 motors and all work on the X and Y controller ports and none work on the Z port. When I enter a command in Chillipeper like G0X1000 the motor turns for almost a second and stops for X and Y, but when I enter G0Z1000 the controller runs endlessly. I start the Z Motor Current pot all the way counter clockwise and slowly turn it clockwise and hear the fan on the power supply increase indicating its drawing more current. I have verified (several times) that the input from the power supply to the gShield is 24.0Volts etc.

    Please advise how to determine if the Z port is bad on this board.

    thank you,
    Bryan Holocker

    May 14, 2018 at 2:00 pm #10987
    kwlabs
    Member

    I have sent an email to support a day after creating this topic and have yet to hear from anyone. It’s a shame, the gshield is a great board but the lack of support is concerning.

    If you get a response to your email, please post it here in case anyone else is looking for help… I will do the same.

    June 3, 2018 at 4:18 pm #11008
    BryanHolocker
    Member

    I have mine working now. I had to go thru all the settings in Chillipepper and create a custom startup script to setup x,y,z mappings and motor settings. for example, my motor 3 was mapped to A axis, not z.

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