New Machine Build 80/20 extrusion router build - Page 12


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Thread: 80/20 extrusion router build

  1. #133
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    Default Re: 80/20 extrusion router build

    I was working on my corexy 3d printer frame when the lightening took out the motor drivers etc. Got around to installing new steppers, drivers and power supply.





  2. #134
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    Default Re: 80/20 extrusion router build

    That thing zips right along.

    Sent from my Pixel XL using Tapatalk



  3. #135
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    Default 80/20 extrusion router build

    Its faster than you can extrude plastic. In the video, it is step rate limited by the 8 bit arduino. Its maxed out at 30khz step pulse rate. I just got a 32bit re-arm for ramps board that I'll be using instead. Up to 100khz step rate so it should go faster but really more for smoother motion capability.

    It also helps to use good stepper drivers rather than the drv8825 or a4988 that most use.


    Another video moving a 123block. This is much heavier than the e3d hot end that I will be using. Should be no problem moving the actual hot end extruder at high acceleration settings.



  4. #136
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    Default Re: 80/20 extrusion router build

    Got my K40 laser working again. The original M2nano controller card blew a few semiconductor parts by the USB connector. I replaced it with a Cohesion3d Mini that runs Smoothie. Front end is Laserweb4. It can now do PWM control of the laser output power. Images such as this can be easily done.






  5. #137
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    Default Re: 80/20 extrusion router build

    I'm glad you're getting your machines back in working order. Sorry you had to go through all of this.



  6. #138
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    Default Re: 80/20 extrusion router build

    Thanks. The gantry is up and running now. Needed a replacement computer and rs485 adapter for the VFD.

    The bench mills and lathe are still down.



  7. #139
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    Default Re: 80/20 extrusion router build

    Jfong - I started reading this thread from the beginning and I got about half way through before I had to quit. I must say, you've made some amazing machines!
    Also glad to see your re-building from your lightning strike.



  8. #140
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    Default 80/20 extrusion router build

    Thanks, This thread has become a running log of things I've done over the years. Helps me remember just what I did....

    Priority has been to get the house back in order. Received the insurance check last week so ordered the replacement major appliances. Of course the money they give you isn't enough to cover everything. I had a pretty high deductible. My workshop "toys" will just have to wait until I get extra funds to fix them.



  9. #141
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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 11:12 AM.


  10. #142
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    Default Re: 80/20 extrusion router build

    Sweet!!

    Sent from my Pixel XL using Tapatalk



  11. #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.



  12. #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 04:56 PM.


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