New Machine Build 80/20 extrusion router build - Page 8


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Thread: 80/20 extrusion router build

  1. #141
    Registered jfong's Avatar
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    Default 80/20 extrusion router build

    Rotary laser engraving is now possible using Laserweb4/Smoothieware

    The k40 laser barely fit my Harmonic Drive Rotary. Will have to build a smaller one for the laser.







    Last edited by jfong; 04-20-2017 at 10:12 AM.


  2. #142
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    Default Re: 80/20 extrusion router build

    Sweet!!

    Sent from my Pixel XL using Tapatalk



  3. #143
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    Default Re: 80/20 extrusion router build

    Received replacement parallel port, network and USB cards from eBay china. That fixed all three cnc controller PC's.

    I narrowed down the X3 mill Z servo motor as having damaged encoder output. Using a oscilloscope, I found The complementary differential outputs were still good. I just unsoldered the A/B wires and moved them, easy fix.

    Almost 2 months later, the Workshop is up and running again. All four cnc's plus laser are now working.



  4. #144
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    Default 80/20 extrusion router build

    Testing out the new 32bit ARM LPC1768 port of grbl-lpc. It's much faster than atmega328 version.

    https://github.com/gnea/grbl-LPC

    It will run on Smoothieboard, Cohesion3d, MKS, re-ARM and others that use the lpc1768. I use the re-ARM in these videos.




    Last edited by jfong; 05-15-2017 at 03:56 PM.


  5. #145
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    Default Re: 80/20 extrusion router build

    Some laser fun. Drink coasters, map of Middle Earth. Laserweb4 and Smoothie sure makes the K40 a much easier and more reliable laser cutter.





  6. #146
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    Default Re: 80/20 extrusion router build

    Took a long time searching eBay but finally found three matching NSK ground ballscrews for my mill. 10mm pitch, 14mm diameter. $260 for all three. More than I wanted to pay but they are in fine condition. The ballscrews are longer than needed so will have to be cut down to size. My summer project....





  7. #147
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    Default Re: 80/20 extrusion router build

    Most recent item I made. 3d printed rotary for the laser.





    https://www.thingiverse.com/thing:3060428



  8. #148
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    Default 80/20 extrusion router build



    Testing linear axis speed for a large format CO2 laser build. Speed is more than fast enough for a laser. I don’t expect to need more than 500mm/sec for most laser cutting or raster. Pretty good for a small nema17 stepper.

    With acceleration/deceleration, the average speed in the video is about 1600mm/sec or 3800in/min.

    1000mm length move
    2000mm/sec velocity
    20,000 mm/sec^2 acceleration

    THK HSR15 Linear Rail 1200mm length mounted on OpenBuild 20x40 vslot extrusion
    Nema17 Stepper 1.7amp 76oz-in
    GT2 20 tooth 2mm pitch belt
    Cohesion3D board running Smoothieware
    DM542 Stepper Driver at 45volts
    8 microstep
    Using THK AFC High Speed Grease.

    Last edited by jfong; 09-12-2018 at 12:31 PM.


  9. #149
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    Default 80/20 extrusion router build




    Another rotary version I made. Lower profile for smaller K40 size cutters.


    https://www.thingiverse.com/thing:3068792



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80/20 extrusion router build

80/20 extrusion router build