IT/Software/Octoprint

Octoprint

An application to control (usb) 3d-printers over the network.

• send .stl over the network (no sd cards needed)
• setup and control the print
• monitor the progress of ongoing prints (optionally, webcams can be added to see the visual state)

Multi printer support

• Octoprint only supports one printer per instance
• in order to support multiple printers, we can deploy multiple docker containers
• the different printers can then be assigned to their respective instance
• this example sets up 2 instances for 2 priners, modify it to your needs

Requirements

• Debian/Ubuntu based host (RPi, Laptop, ...)
• one USB port per 3d printer
• Recommended: network connectivity to host (if not, only local control possible)
• Optionally: one webcam per 3d-printer (needs additional USB ports)
• Recommended: ssh enabled on host (needed for ansible deployment)
• Docker installed https://docs.docker.com/engine/install/ubuntu/ / (TODO*: ansible playbook)
• Optionally: Portainer installed https://docs.portainer.io/start/install-ce/server/docker/linux / (TODO*: ansible playbook)

Deploy Octoprint with 2 printers

• Reference: https://github.com/OctoPrint/octoprint-docker

Manual deployment

• modify the docker-compose.yml according to your printers and webcams
• make sure each instance uses it's own port
• deploy the compose file on the hosts Portainer

Without Portainer

• copy the compose file to /srv/docker/octoprint/docker-compose.yml on the host
• cd /srv/docker/octoprint
• start the containers with sudo docker compose up -d
• check if containers are running sudo docker ps
• check for any errors with sudo docker compose logs -f

*TODO: Push the snippets to GitHub or so, they look !nice...

version: '3.9'

services:

 octoprint-1:
   image: octoprint/octoprint
   restart: unless-stopped
   ports:
     - 81:80
   # devices:
   # use `python -m serial.tools.miniterm` to see what the name is of the printer, this requires pyserial
   #  - /dev/ttyACM0:/dev/ttyACM0
   #  - /dev/video0:/dev/video0
   volumes:
    - octoprint-1:/octoprint
   # uncomment the lines below to ensure camera streaming is enabled when
   # you add a video device
   #environment:
   #  - ENABLE_MJPG_STREAMER=true

 octoprint-2:
   image: octoprint/octoprint
   restart: unless-stopped
   ports:
     - 82:80
   # devices:
   # use `python -m serial.tools.miniterm` to see what the name is of the printer, this requires pyserial
   #  - /dev/ttyACM1:/dev/ttyACM0
   #  - /dev/video1:/dev/video0
   volumes:
    - octoprint-2:/octoprint
   # uncomment the lines below to ensure camera streaming is enabled when
   # you add a video device
   #environment:
   #  - ENABLE_MJPG_STREAMER=true

volumes:

 octoprint-1:
 octoprint-2: