IT/Software/Octoprint

1. 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)

1. 1. 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

1. 1. 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 [manual install](https://docs.docker.com/engine/install/ubuntu/) / (ansible playbook) - Optionally: Portainer installed [manual install](https://docs.portainer.io/start/install-ce/server/docker/linux) / (ansible playbook)

1. 1. Deploy Octoprint with 2 printers

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

1. 1. 1. Deploy with Ansible

- local install of ansible required (ansible) - copy this Ansible Playbook to your local device (pb_docker-octoprint.yml) -

1. 1. 1. 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`

``` 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:

```