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Laser Engraver Control Board

Discussion in 'Laser Cutters' started by oni305, Feb 9, 2014.

Laser Engraver Control Board + Inkscape extension

Laser Engraver Control Board + Inkscape extension

Discussion in 'Laser Cutters' started by oni305, Feb 9, 2014.

This is a PCB designed to control a laser Engraver CNC

Laser Engraver GRBL PCB
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  1. Robert Hummel

    Robert Hummel Custom Builder
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    Wol_0001_BW_preview.png
    Well I'm going to have to say the results are rather pleasing :)
    The code ran flawless except M05 and homing did not happen at the end of the code.
    Awesome plug in, just awesome!
    image.jpg
     

    Attached Files:

    #31 Robert Hummel, Feb 20, 2014
    Last edited: Feb 20, 2014
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  2. oni305

    oni305 Well-Known
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    Many thanks!

    I've slightly edited the software, @Robert Hummel you can now replace the file.
    I think I've resolved your homing issue at the end of the file, changing the order of the last 3 gcode:
    Code:
    M05; Laser OFF
G00 X0 Y0; home
G28; home all axes
     

    Attached Files:

    #32 oni305, Feb 22, 2014
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  3. Mark Carew

    Mark Carew OpenBuilds Team
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    Just watching this thread and I am amazed at the coolness you guys are producing. Working together as a team and hashing it out. Nice work, can't wait to get my laser done now :D
    Keep up the good work :thumbsup:
     
    #33 Mark Carew, Feb 23, 2014
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  4. oni305

    oni305 Well-Known
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    Thanks;)
     
    #34 oni305, Feb 23, 2014
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  5. Yusuf Tumer

    Yusuf Tumer New
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    I know how you feel. The work these guys are doing is making me even more excited to build my own cnc laser after seeing the possibilities and ease of use they are putting on the table. Truly great work.
     
    #35 Yusuf Tumer, Feb 23, 2014
  6. Robert Hummel

    Robert Hummel Custom Builder
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    Oni305 has done some fine work on this extension for sure.
    Real busy and have not tried the update with the mo5 fix
    A lot of people loved my Wol file produced with it :)

    Oni305, you rock bud! :cool:
    Filled that last hole I had in my project when it comes to the software.
    This is what I see openbuilds as :D
    Great people, great ideas and great fun
     
    #36 Robert Hummel, Feb 24, 2014
    Krishnakumar, mybuild14 and Mark Carew like this.
  7. lexluther

    lexluther New
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    Oni305 GREAT JOB!

    I have the same problem as Robert. I updated the plugin, but it does not turn off the laser and go home.
    In Gcode, on the end there is this code:

    M05; Laser OFF
    M05; Laser OFF
    G00 X0 Y0; home
    G28; home all axes

    oh...and it is mirrored.
     
    #37 lexluther, Mar 3, 2014
    Last edited: Mar 3, 2014
  8. oni305

    oni305 Well-Known
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    I can't figure why... the gcode seems correct

    it depend on how you have oriented the axis, because in computer graphics the coordinates are like this:
    [​IMG]
     
    #38 oni305, Mar 3, 2014
  9. David the swarfer

    David the swarfer OpenBuilds Team
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    but CNC machines have a different standard for axis directions, in the above drawing Y would point up and 0,0 is at bottom left of the cut area. It is known as the right hand rule and Gcode interpreters follow it. Note that the directions describe tool motion .
    [​IMG]
     
    #39 David the swarfer, Mar 4, 2014
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  10. oni305

    oni305 Well-Known
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    It's the standard cartesian space

    I like this way (computer graphics way), because when the laser it's in X0 Y0 i have the working area free... (and less code complexity :p)

    But if i've some free time i can add an option to flip the Y axis
     
    #40 oni305, Mar 4, 2014
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  11. oni305

    oni305 Well-Known
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    I've figured out why the homing cycle doesn't work!

    Because GRBL don't recognize the commamd G28 instead he want $H to perform the homing.

    This weekend I'll work on the extension to flip the coordinates, stay tuned :p
     
    #41 oni305, Mar 26, 2014
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  12. lexluther

    lexluther New
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    Great !!!
     
    #42 lexluther, Mar 26, 2014
  13. David the swarfer

    David the swarfer OpenBuilds Team
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    as I understand Gcode programming, you should not be homing within your program.
    Homing is something you do after machine switch on, before you run any programs.
    After homing you might need to set 0,0 at the corner or center of the job, and having another home instruction in a program would disturb that setting.
     
    #43 David the swarfer, Mar 26, 2014
  14. lexluther

    lexluther New
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    It works for me, if i just uncomment the last three commands.
     
    #44 lexluther, Mar 26, 2014
  15. oni305

    oni305 Well-Known
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    New version ready!!

    Changelog:
    - Added an option to Flip Y
    - Added an option to handle the Homing Cycle (G28 or $H or none)
    - Added G92 (Coordinate Offset) on the GCODE

    @kram242 how i can remove the old file from the build post??
     

    Attached Files:

    #45 oni305, Mar 26, 2014
    Last edited: Mar 26, 2014
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  16. Mark Carew

    Mark Carew OpenBuilds Team
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    Unless you add it to your files tab of the build it gets trapped in the body of the build. We are working on that but for future reference you may want to drop then in the files section that way you can update as you please.
    I will delete it from the back end
    Thanks for the new release! :thumbsup:
     
    #46 Mark Carew, Mar 26, 2014
  17. GrayUK

    GrayUK Openbuilds Team Elder
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    You guys are so SMART!!! However, does that mean I have to be, as smart, to build a laser CNC? Or is going to come wrapped and packed for the likes of laymen like me?
     
    #47 GrayUK, May 23, 2014
  18. bit53b

    bit53b New
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    Hi @oni305

    I'm interested to look at how you implemented the inkscape extension - is the project code open source?
    No worries if not - and my apologies if the source code is in the .rar file download already - I'm just looking for something that will open it on my mac - looks like I'll have to download something to do the job...
     
    #48 bit53b, Jul 4, 2014
  19. oni305

    oni305 Well-Known
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    yeah it is open! --> "THE MODIFIED BEER-WARE LICENSE"

    everything is inside the. rar file, you can open the file *.py & *.inx with a text editor

    raster2laser_gcode.inx -> required for inkscape to interface with the python script
    raster2laser_gcode.py -> my own script (magic happens here)
    png.py -> third party script to open png file
     
    #49 oni305, Jul 4, 2014
    Last edited: Jul 4, 2014
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  20. bit53b

    bit53b New
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    thank you so much - I'm hoping I can add to the magic :)

    I think your idea of converting digital images to gcode is genius and has a lot of potential applications.
     
    #50 bit53b, Jul 4, 2014
    oni305 likes this.
  21. Tamas

    Tamas New
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    Hi can you put this function in ?
    two way.jpg
    So engraving back and forward on x shaft...
    Because at the moment engraving only one way, and that make very long engraving time ! :)
    Regards : Tamas
     
    #51 Tamas, Aug 19, 2014
    Last edited: Aug 19, 2014
  22. oni305

    oni305 Well-Known
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    mmm

    I think it's possible... I have to change the code to scan the immage...

    Code:
    for y in range(h):
    for x in range(w):
        if matrice_BN[y][x] == N :
            .......
    alternating from " for x in range(w): " to " for x in reverse(range(w)): " for every line

    I'll try
     
    #52 oni305, Aug 20, 2014
  23. Woodie49

    Woodie49 New
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    Is there a parts list for the board some where I missed?
    Thanks
     
    #53 Woodie49, Aug 26, 2014
  24. oni305

    oni305 Well-Known
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    No, but i can post the partlist this afternoon
     
    #54 oni305, Aug 27, 2014
  25. oni305

    oni305 Well-Known
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    I've posted the Partlist in the file section ;)
     
    #55 oni305, Aug 27, 2014
    Last edited: Aug 28, 2014
  26. Dat Chu

    Dat Chu New
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    This software is fantastic. I gotta try this out. :) Thank you for posting.
     
    #56 Dat Chu, Aug 27, 2014
  27. oni305

    oni305 Well-Known
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    NEW VERSION !

    The Version 6 with Zigzag movement for increased performance is out !

    :thumbsup:
     
    #57 oni305, Aug 31, 2014
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  28. H2Osteam

    H2Osteam New
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    Hi all
    Here to share some of the engraving work i have done during the joint development of the new ZigZag version of oni305's script.
     

    Attached Files:

    #58 H2Osteam, Aug 31, 2014
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  29. Tamas

    Tamas New
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    Hi !
    Where I can find the 6.th version ?
    Regards
     
    #59 Tamas, Sep 18, 2014
  30. oni305

    oni305 Well-Known
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    #60 oni305, Sep 18, 2014
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