A switch case for an ATX power supply and a Raspberry Pi to operate the Disegna3D V4 using Octoprint. This switch arrangement enables you to select either local control (Printer is On without Raspberry Pi - Pi is off) or Raspberry Pi on (Printer starts Off, but can be switched On using Octoprint command). See Instructable by mfoster for the original concept. http://www.instructables.com/id/Using-the-Raspberry-Pi-to-control-an-ATX-power-sup/
My switch arrangement takes this further by incorporating a Soft Reset switch for the RPi at the back of the housing (just in case you lose network connection and cannot shut down from Octoprint) and a useful flashing LED (1Hz) to indicate that the RPi is On.
If anyone is interested I will write up the whole project on Instrucables.
The Disegna3D V4 is an affordable 3D printer. To buy one, see Disegna3D.com for more information