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Setting a custom machine

Discussion in 'CNC Mills/Routers' started by Nomad1, Jul 30, 2020.

  1. Nomad1

    Nomad1 New
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    I am a newbie and just purchased the black box bundle and would like to know how to set up the parameters of my machine in the software..

    my machine is a China 6090 cnc router
     
  2. David the swarfer

    David the swarfer OpenBuilds Team
    Staff Member Moderator Builder

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    download and install OpenbuildsCONTROL .
    in CONTROL click 'GRBL Settings'
    select whichever Openbuilds machine most closely resembles your machine in configuration (belts or screws) and size.
    make sure homing is turned off even if you have homing switches
    click 'save to firmware'
    press the reset button on the blackbox

    set a small jog step and make sure the tool jogs in the correct directions
    pre-calibrate : use what you know about the machine to preset the steps/mm settings, maybe use a calculator to help you.
    Calibrate, you can use the wizard in CONTROL or follow the instructions. (which is a bit more accurate since you can measure over a longer distance).

    At this point you have directions correct and step/mm calibrated...
    now, if you have home switches, you can use the troubleshooting tab to check that they work correctly
    then enable homing and check directions by resetting grbl and homing (finger on Estop!) to check that homing goes in the correct directions.

    if you do not have home switches, then learn to fake the home so that everything works the way Gcode expects it to.

    now, cut a simple test in some insulation foam.
     
    Nomad1 and Peter Van Der Walt like this.
  3. Nomad1

    Nomad1 New
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    Peter; what happens if i change the acme lead screws
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Project Maker Builder Resident Builder

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    You change the steps per mm value. Refer to the Grbl wiki (github.com/gnea/grbl/wiki)
     
  5. jeffreycncbeginner

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    do you have pictures of your wiring on the blackbox? i got a china 6090 myself and want to convert to the black box motion controll but stuck on the spindle wiring
     
  6. Nomad1

    Nomad1 New
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    Not yet but I am planning to remove the spindle and putting a Dewalt DWP611 instead
     
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