I am wondering how the “Play” button works.
It is is for direct printing from Voxelizer. If you have a serial connection you can plug the printer to the computer with an USB cable and connect to Voxelizer(settings in the “Printer connection” panel that you can see in your screenshot). We tested it only with ZMorph printers and usually we don’t encourage users to print big objects directly from Voxelizer since it is less reliable than using an SD card.
OK, that makes sense. I have been transferring to OctoPi and when they get my Quad working I believe I will be able to use the WiFi interface on the Duet board in a similar manner.