What is the problem?
My printer was working 2 days ago. I've made no configuration changes, hardware nor software, and suddenly I'm getting
SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?) immediately on print start. This happens either when I start a previously successful print, or when I set a temperature of the hotend. When I try to start a print, the bed gives 1 twitch that sounds like starting the homing process, then stops and throws the error.
What did you already try to solve it?
- Rebooted Pi and power-cycled printer
- Rebooted Octoprint in Safe mode
- Checked seating of USB cable on both ends
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible)
- Printrbot Simple Metal
- Octopi 1.3.10 running on a PiZero-W
Setup has been working fine with no changes for over 6 months.
Please don't tell me I've got a dead printrboard.