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      1. Build Progress:
        • Build in Progress...
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      4.6/5,
      5 votes
      Sometime ago, i've built a small CNC Laser engraver, but it doesn't satisfy me, both the electronics and the mechanical...

      After a while i've started to design a new control board for the Laser, this time i want all the electronics on a single PCB, both the movement control and the current driver of the laser.
      The first step was to design the circuit : I've used the standard GRBL pin assignment, the LT3083 to drive the laser and the stepstick to move the motors.

      NOTE: This is a REV1, I have already identified an improvement to do ...

      Schematics (REV 1):
      schema.png
      PCB (REV 1):
      PCB.png



      With these files I have made the PCBs:
      PCB realizzato.jpg

      Then I've soldered all the components and this is the result:
      LaserBoard.jpg



      (In the next build i'll use the vslot to build the mechanics)

      Update:
      With the need to generate the GCode for the laser directly from an image, i've started to write an extension for Inkscape (http://www.inkscape.org/).

      Installing:
      Step 1)
      Download from "Attached Files:" (at bottom)
      Step 2) Extract the archive and simply copy all the files in the folder "Extensions" of Inkscape

      Code:
      Windows ) "C:\<...>\Inkscape\share\extensions"
      Linux ) "/usr/share/inkscape/extensions"
      Mac ) "/Applications/Inkscape.app/Contents/Resources/extensions"
      
      for unix (& mac maybe) change the permission on the file:
      chmod 755 png.py
      chmod 755 raster2laser_gcode.py
      chmod 644 raster2laser_gcode.inx
      

      Usage:

      Step 1) Resize the inkscape document to match the dimension of your working area
      3menu.png


      Step 2) Draw or import the image


      Step 3) To run the extension go to: Extension > 305 Engineering > Raster 2 Laser GCode generator
      1menu.png


      Step 4) Play!
      2menu.png

      Attached Files:

      1. Special Notes

        1) This is a REV 1 of the board.
        2) English is not my native language, so sorry for my poor grammar...
      yakeen, Alonso Vilo, DuncanF and 15 others like this.
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  • Build Details

    Build License:
    • CC - Attribution NonCommercial - CC BY NC

    Reason for this Build

    I've started this project to have a single board for controlling a small Laser cnc
  • Parts list

    Qty Part Name Part Link Comments
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  • Attached Files: