Welcome to Our Community

Some features disabled for guests. Register Today.

      1. Build Progress:
        • Build Complete!
      Rate This Build
      0/5,
      0 votes
      20180921_070325.jpg

      This is my first CNC build, and while there have been a few bumps along the way, I have enjoyed it immensely. The initial build took a little over a week, with the build video by Openbuilds providing a much appreciated reference. The only real issue I encountered was a stepper motor wire color difference versus the video.

      Following the advice I found online, the first test of the CNC were done with a pen, rather than a router. I found a pen holder design which I modified to attached to the front of the router fixture, and issued the obligatory "hello world".

      20181001_180041.jpg

      I spent the next few weeks working on vacuum based spoiler boards, as my first projects require a full profile route, so clamp based hold down is sub optimal. The result is pretty effective, but does require a two stage shop-vac setup to create enough vacuum to hold the work piece down during hardwood routing.

      20181028_165416.jpg

      Fusion 360 was the work horse for the design of the vacuum spoiler boards and projects, as well as CAM and tool paths. I am early in my laser engraving efforts, but have used Inkscape for design and G code generation so far. UGS is my primarily G code sender, with Joy2Key to enable a USB game controller for jog control. I did develop a handful of Python scripts to deal with some G code issues between Fusion/Inkscape and UGS - nothing too exotic, but too much to deal with manually. Another script was required to translate the G code X-axis to Z-axis, so that an image can be applied to the edge of a work piece. In the process, I did stumble across a UGS bug in visualizing G2/G3 moves in the Z plane, but was able to get the CNC to do the right thing, so it was more of an annoyance than anything.



      A laser was mounted adjacent to the router to allow engraving/cutting, and a prism attachment developed to allow the laser to engrave the side of work pieces. So far, it has yielded pretty impressive results.

      Here is a link to the 3D printer model of the laser adapter: Workbee CNC/Endurance Laser Adapter by dustnnotes

      20181127_130706.jpg

      I have been using a second dust shoe attachment to remove smoke during a laser operation, using the filtration of the dust collection system to provide a coarse level smoke particle removal. My most common mistake is to have some issue in the alignment of the job coordinates with the machine coordinates. So with a Python script, I have added a "marker" header to the beginning of the laser engraving G code so you can see where the image will be engraved - saves on wasting material.



      There were a few more additions, including mounting an USB endoscope camera on a flexible fluid pipe, and inserting it through hole in the dust shoe to monitor the router in action. I have found this a valuable tool in monitoring the job progress, and in providing an early warning when things are going sideways before too much damage is done.

      I purchased an XYZ probe from eBay, and wrote the macros to automate work piece location on the machine - a necessary step to remove the tedious manual alternative. Highly recommended.

      To be honest, I have achieved a bit more success than I envisioned, and am look forward to building on my budding CNC usage repertoire.

      Attached Files:

      1. Special Notes

        Key learning's:
        - With CNC machines, safety is a thing. I implemented a tethered control box with emergency stop that removes the power to the CNC controller/steppers, and a switch to control power to the laser. When you are learning the machine, it does things you don't intend, and being able to stop it, like now, is something I use almost every day.
        - Wire color can differ on stepper motors, check the winding connection as part of the wiring process
        - Axis limit switches are a cheap way to protect your machine. Put one at each end of each axis : I have unintentionally tested every one of my limit switches
        - Keep a few spare lead screw couplers around. Experience shows this is the first thing to fail if you ask your machine to go beyond it's physical work space
        - Pay special attention to tightening the set screws on your lead screw couplers, especially the Z-axis. It took me awhile to figure out why I had Z-axis drift, and loose set screws was the root cause
        - Speeds and feeds can be a challenge to figure out. A few data point from my travels:
        - Maple (Hardwood) :
        . - Rough pass : Router RPM ~16000 (Slowest setting on DeWalt 611), feed rate of 2000mm/min
        . - Finish pass : Router RPM ~16000 (Slowest setting on DeWalt 611), feed rate of 500mm/min
        - Laser engraving :
        . -Laser power 80(out of 255), feed rate of 300mm/min
  • Loading...
  • Build Details

    Build License:
    • CC - Attribution NonCommercial - Share Alike - CC BY NC SA
  • Parts list

    Qty Part Name Part Link Comments
    1 Openbuilds Workbee 1010 https://openbuilds.com/builds/openbuilds-workbee-1010.7198/ Link
    1 DeWalt 611 Router https://www.amazon.com/DEWALT-DWP611-Torque-Variable-Comp... Link
    1 Edurance 5.6W Laser http://endurancelasers.com/diode-lasers/5-watt/ Link Shipping took a few weeks, so patience...
    1 Openbuilds Workbee wiring kit https://openbuildspartstore.com/wiring-kit-openbuilds-wor... Link
    1 3D printed Router dust shoe https://www.thingiverse.com/thing:1243484 Link
    1 CNC Corner Zero finder/Touch Plate/Edge Finder/XYZ https://www.ebay.com/itm/CNC-Corner-Zero-finder-Touch-Pla... Link
    1 Round Nozzle 1/4PT Flexible Oil Coolant Pipe Hose https://www.amazon.com/gp/product/B071JQ38N5/ref=oh_aui_d... Link Used to position the endoscope camera
    1 USB Endoscope https://www.amazon.com/DEPSTECH-Semi-rigid-Inspection-Wat... Link
    0 Link
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice