The printer hadn't been powered on since removing the module, so I had left the printer's RPi port connection option on. Instructions from this point said the Pi needed to be connected to the printer, so I added it in and powered the printer on. Everything up to this point was behaving as expected. I found new instructions for how to create a new Octoprint image at and followed them through to the end, and now have a system that won't recognise the printer through the serial connection.įlashing the Octoprint image onto the micro SD card worked fine, connecting the RasPI to my network did as well (though at this point I powered the Pi Zero W by micro USB without connecting to the printer), I found the local IP address and logged into Octoprint, then added an MK3S printer profile with the specified dimensions and the IpOnConnect plugin. Previously it was working from the old Prusa image which was simple to set up and just worked, but I've seen warnings in Octoprint that it's an old version that is soon to be unsupported. I only use it for monitoring print progress so I'm not concerned about the data integrity issues.

I have a MK3S upgraded to MK3S+, with a Raspberry Pi Zero W connected by the GPIO pins. Octoprint state 'Offline after error' after initial setup

Octoprint on pi zero