Turn on 3D printer, print, then turn it off

[Russ]

This is the script I use to print something on my 3D printer via TRIGGERcmd. It turns the printer on, prints the object, then turns it off again.

#!/bin/bash -v
tcmd --computer "octopi" --trigger "3d printer smart plug on"
sleep 10 # wait for the printer to boot
octoprint-cli connection connect
octoprint-cli print select $1.gcode
octoprint-cli print start

# Loop until print job is finished
while true; do
  # Retrieve job status
  job_state=$(octoprint-cli print status | head -n 1)

  # Check if the job is finished
  if [[ $job_state == "Printer Operational" ]]; then
    echo "Print job finished."
    break
  fi

  # Wait for the next check
  sleep 10
done

tcmd --computer "octopi" --trigger "3d printer smart plug off"

My /root/.TRIGGERcmdData/commands.json file looks like this:

[
  {"trigger":"Reboot","command":"shutdown -r","ground":"background","voice":"reboot","allowParams": "false"},
  {"trigger":"3d printer smart plug on","command":"echo","ground":"background","voice":"plug on","allowParams": "false"},
  {"trigger":"3d printer smart plug off","command":"echo","ground":"background","voice":"plug off","allowParams": "false"},
  {"trigger":"Start 3d print","command":"su - pi /home/pi/print.sh","ground":"background","voice":"print","allowParams": "true"},
  {"trigger":"apt update","command":"apt-get -y update","ground":"background","voice":"update","allowParams": "false"}
]

It uses two Alexa routines - one to turn my Wyze smart plug on, and one to turn it off (to turn the 3D printer on/off). This is a screenshot of the "off" routine:

This article explains how to setup the Alexa routine.

This video shows me printing something via TRIGGERcmd.