Octoprint (3D print server) on Omega2+



  • @Lazar-Demin said in Octoprint (3D print server) on Omega2+:

    This makes the PrintrBot in the office so easy to use that it's almost always on and printing stuff. We had to move it to a different room to be less distracting!

    I read-though a couple times before attempting. I'm surprised there are so few comments. After a literal copy paste operation, I now have a webui for my 3d printer (Anet A8). Thanks guys, the Omega2+ is really shining here. I haven't made a single change to this any of he setup information above. After I connected my printer and powered up, I did need to adjust the serial port to "/dev/ttyUSB0" and set the Baud rate to 115200. It worked the first time. My little girl will have some new toys when she wakes up in the morning.



  • This looks really good, I am going to begin the implementation tonight. Did you manage to get a webcam working with the Omega2+/OctoPrint?
    I am using an Arduino + RAMPS and Marlin to run my printer. Are you aware that there is an Arduino dock for the Omega2+? I will post a picture when it has arrived.
    Great work. Thanks



  • So I have finally gotten around to putting my electronics into an enclosure and was attempting to connect to my RAMPS board though the USB+ and USB- on the expansion board due to space constraints as seen below.

    Onion
    Red => 5V
    Grey => GND
    blue =>USB-
    Green=>USB+

    Mega USB A
    Red => 5V
    Grey => GND
    blue=> pin 2 (USB -)
    Green=> pin 3 (USB +)

    I power everything up through the Green Terminal Block on the Ramps Shield.

    I am not able to connect to the Ramps board with this setup. The issue I have come across is that I cant seem to find any documentation on using the USB pins. Anyone have a resource I could read up on to get this working in this fashion?

    https://drive.google.com/open?id=18u8v2-7UK3iKGmlZZ8UeBE3zajbIXJrsrA

    Edit:

    After attempting to connect through the normal USB A to the ramps it seems that the Omega is seeing the serial port

    • [ 169.668429] usb 2-1: new full-speed USB device number 3 using ohci-platform
      [ 169.903385] cdc_acm 2-1:1.0: ttyACM0: USB ACM device

    but Octoprint is not when connected through the pins.

    So I am currently attempting to solve this issue in hopes that will also alleviate the above issue.

    The error I am getting in the Octoprint Terminal is:

    • Changing monitoring state from 'Offline' to 'Opening serial port'
      Connecting to: None
      Unexpected error while connecting to serial port: None SerialException: '[Errno 2] could not open port None: [Errno 2] No such file or directory: 'None'' @ comm.py:_openSerial:795
      Changing monitoring state from 'Opening serial port' to 'Error: Failed to open seria...'


  • @Phil-Heuy Your picture doesn't explain what the issue is. You just connect USB+ to the other devices USB+, USB to USB-, 5V to 5V and GND to GND.



  • @WereCatf I do have things set up as you stated. Thank you for letting me know I didnt really state my issue. I have corrected my original post and added my wiring configuration.



  • I was able to get Octoprint 1.3.1 installed with minimal effort. It requires python libs that require compiling with GCC so you need to install GCC.

    You will need more RAM for this to work. You can do this by creating a swap file. I put my swap file in the root (/) folder which resides on the SD card when following the instructions here. I also made my swap file 512 megabytes, 256 was not enough.

    Follow the instructions above and stop at step 3.

    Un-comment this line in the /etc/opkg/distfeeds.conf
    src/gz reboot_base http://downloads.lede-project.org/snapshots/packages/mipsel_24kc/base

    Run
    opkg update
    opkg install gcc python-dev --force-overwrite
    pip install --upgrade setuptools

    Replace step 3 with the following steps...
    cd /root
    wget https://github.com/foosel/OctoPrint/archive/1.3.1.zip
    unzip 1.3.1.zip
    cd OctoPrint-1.3.1
    pip install -r requirements.txt

    Follow the remaining steps but replace OctoPrint-1.0.0 with OctoPrint-1.3.1



  • Tried installing 1.3.1 with cache & gcc. Got stock on a netifaces error. Either upgrading pip or installing python-dev seemed to get past that.

    pip install --upgrade pip
    opkg install python-dev --force-overwrite
    pip install netifaces



  • İNDEX OF/CONSOLE ERROR
    When I make 192.168.3.1 it gives this error and it is not an IP conflict problem. Why do I get this error? How do we fix it? I'm waiting for your help

    link text

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  • @ayhan-uçar Stop spamming in every single thread you can find, you twat



  • @Jason-Allred I did forget to add the opkg install python-dev part. I'll run through everything else I did on a clean system to figure out what else I missed. I will point out that netifaces is where the hangup was. Whatever I am missing here got it to install.



  • @Jason-Allred Try running pip install --upgrade setuptools then netifaces should work.



  • @Jeff-Karney Also having troubles with netifaces installing (for Octoprint 1.3.1), all versions 0.10.X wont install (thought i would try it out), followed all the steps mentioned in this post. What firmware are you using on the omega 2+?

    Im currently running b160. If your interested the output from pip is http://pastebin.com/pCyhgxpP it looks like python cant find the compiler as its missing the cache_cc directory. Did you set any environment variables to point to the GCC compiler?


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