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David the swarfer
Last Activity:
Sep 25, 2021 at 6:44 AM
Joined:
Aug 6, 2013
Messages:
2,063
Likes Received:
1,155
Trophy Points:
113
Resources:
12
Gender:
Male
Birthday:
Sep 22, 1966 (Age: 55)
Home Page:
Location:
Grahamstown, South Africa
Occupation:
IT Specialist

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David the swarfer

OpenBuilds Team, Male, 55, from Grahamstown, South Africa

Staff Member Moderator Builder Resident Builder

head scratching Sep 20, 2016

David the swarfer was last seen:
Sep 25, 2021 at 6:44 AM
    1. Holley
      Holley
      Possible"bug" in Drill toolpath Fusion360 Openbuilds Post Processor?

      code produces Z-10...wrong direction?

      I have code comparing drilling 4 holes in corner of stock with the 2 post processors, Generic GRBL and Openbuilds Fusion Post Processor. I tried to include however the Forum only allows 420 characters
      1. David the swarfer
        David the swarfer
        With the origin at the top of the stock all Z cutting motion is negative, perfectly normal. Z negative motion will move the bit through the material. All CNC machines must follow the 'right hand rule' for motion directions, even if they are upside down like the Phlatprinters. Please create a forum post and attach your Fusion file so I can look at it.
        Jul 20, 2021
      2. Holley
        Holley
        Using Right Hand Rule Z+ is up... This processor gives me a -Z 10 to start and plunges and moves x,y... It should start with +Z10 move to x/y and begin cut
        Aug 4, 2021
    2. jjjump
      jjjump
      what post processor should be used for cut 2D desktop
      I hav an openbuild iead 1010 with the blackbox control
      1. David the swarfer
        David the swarfer
        Hiya
        The BlackBox runs GRBL so you need a GRBL post. If there is no post labelled as such then use the one that outputs the simplest Gcode, this means
        G1/G2/G3 codes are ok,
        metric and imperial (G20,G21) are both fine,
        NO toolchange codes,
        no tool offsets
        the full list of supported codes is on the GRBL wiki at github.com
        May 23, 2019
      2. jjjump
        jjjump
        Thanks I will look to see if I can find one
        May 23, 2019
      3. jjjump
        jjjump
        Thanks David found it
        May 23, 2019
    3. Knox48
      Knox48
      David , I'm new here and heard you were the man to ask.

      I was given a Phlatprinter III,
      Do you know if there is still a Free download for Sketchup?
      Also I will need a plugin for G-code.
      Hope you can help.
      Thank you
      1. David the swarfer
        David the swarfer
        Oct 23, 2018
        Knox48 likes this.
    4. drfirew
      drfirew
      Hi David,

      I had XPRO V3 working fine, until this afternoon. I was configuring homing settings and after making necessary changes to grbl config.h file and compiled it in Arduino, I was flushing the .hex file to my XPRO board, when suddenly all the light on the board turned off and I can only see the 5V green LED, and flickering green LED on the USB port on the board.
      1. View previous comments...
      2. David the swarfer
        David the swarfer
        If you have flashed directly through the ISP port before you will have to do that again because that will overwrite the bootloader that allows USB port flashing.
        Feb 20, 2018
        drfirew likes this.
      3. David the swarfer
        David the swarfer
        The critical thing when flashing a /hex/ are the fuse settings, getting those wrong even a little bit can make it freeze up. Plenty of web sites detailing how to unbrick an Atmega328p so just Google it.
        Feb 20, 2018
        drfirew likes this.
      4. drfirew
        drfirew
        Dear David,

        I have tried to flash it through USB using XLoader, and the 5V LED light on and USB LED flickers as it would when flashing. But, XLoader says "Uploading", but this never stops. Flickering USB LED for long minutes and minutes, very strangely.

        I will google the unbricking and let you know here the result.

        Thank you.
        Feb 20, 2018
    5. bnbellis3377
      bnbellis3377
      Hi David
      You seem to be the go to guy for sketchup, maybe you can help me. I want to trace a pattern out for my scroll saw and cut it on my cbeam, looked for videos and at forums but can't seem to find anything
      1. David the swarfer
      2. David the swarfer
        David the swarfer
        A brief search shows that Inkscape can automatically trace an image. Then you can export that and import it into sketchup.
        Dec 5, 2016
      3. bnbellis3377
        bnbellis3377
        Thank you for the response I'll check the video out not sure about the Inkscape have not used it
        Dec 6, 2016
    6. Mark Carew
      Mark Carew
      Happy Birthday David!!! :)
      1. David the swarfer likes this.
    7. David the swarfer
    8. David the swarfer
    9. coop
      coop
      I am trying to download the sketchup file for one of the builds but after logging on, the system says that I do not have permission to that file. Tried several times on several different files. No Joy. Is there a problem with my account or with the system?

      David 'Coop' Cooper
      1. JazzyJim likes this.
      2. David the swarfer
        David the swarfer
        Which build and which file Coop?
        Jan 16, 2014
    10. David the swarfer
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  • About

    Gender:
    Male
    Birthday:
    Sep 22, 1966 (Age: 55)
    Home Page:
    http://www.swarfer.co.za
    Location:
    Grahamstown, South Africa
    Occupation:
    IT Specialist
    I fly RC, therefore I make machines to build RC, write software to help build RC, and generally fill the house with foam scraps and sticky tape.

    Signature


    --

    http://www.swarfer.co.za/rc for some cool workshop tools
    SketchUcam for simple, effective 2.5D Gcode generation (proud to contribute)
    Drawing for SketchUcam videos: Introduction to drawing for SketchUcam
    GRBL post for Fusion360
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