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Reference sensor for CNC Tools

Discussion in 'CNC Mills/Routers' started by AK-Creation, Oct 31, 2016.

Reference sensor for CNC Tools

Reference sensor for CNC Tools

Discussion in 'CNC Mills/Routers' started by AK-Creation, Oct 31, 2016.

For the x and y Axis you set the zero point with a limit switch, but how can you get the zero position for the z Axis? You have different thickness of material to mill and when you change the tool, you have also a other z Axis positon. With the Sensor, you can define the zero position of the piece automaticly.

reference sensor cnc tool diy measurement
  1. AK-Creation

    AK-Creation Well-Known
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    AK-Creation published a new build:

    Read more about this build...
     
    #1 AK-Creation, Oct 31, 2016
    GrayUK likes this.
  2. Mark Carew

    Mark Carew OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    Wow this is great @AK-Creation ! Thank you for the share
     
    #2 Mark Carew, Nov 1, 2016
  3. MaryD

    MaryD OpenBuilds Team

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    Awesome!
     
    #3 MaryD, Nov 1, 2016
  4. AK-Creation

    AK-Creation Well-Known
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    Hello Mark, Hello Mary,
    thanks for your comment! :)
     
    #4 AK-Creation, Nov 1, 2016
  5. AK-Creation

    AK-Creation Well-Known
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    Hi Justin Time,
    it is very simple.
    The G28 Code is for Homing.
    When you use "G28 X0 Y0" - The Homing are only by the X and Y Axis. By reaching the limit switch the X and Y Axis position is "0".
    When you use "G28 Z" - The Homing are only by the Z Axis. And by reaching the Z limit switch ist the position "0".
    When you use "G28 Z26" (26 ist the complet high from the Sensor) - The Homing are only by the Z Axis. And by tiggerd the Sensor, the Z Homing position is set to "26 mm".

    My Cam Software (Estlcam) calculate the CNC Program from the "0" - Point to minus (the Hole -3 mm deep).
    The CNC Machine drive fast (F1500) to the "0,5 mm" Z Position and begin to mill the Hole (-3 mm deep).

    I hope I could help you.

    Sensor.JPG GCode.JPG
     
    #5 AK-Creation, Nov 1, 2016
    JustinTime and GrayUK like this.
  6. Anthony Bolgar

    Anthony Bolgar Journeyman
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    Nicely done!
     
    #6 Anthony Bolgar, Nov 1, 2016
  7. AK-Creation

    AK-Creation Well-Known
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    Thanks :)
     
    #7 AK-Creation, Nov 1, 2016

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