Klipper started throwing an error and shutting down while trying to heat the extruder. The extruder was cold, which basically meant a heater wire break. Thankfully it was very easy to find. So much for buying a nicer harness. Grumbles aside, I wonder if this wire got pinched when I assembled the chains, which lead to an early failure.

I didn’t have any spare PTFE wire on hand, so I spliced in a length of 16 gauge silicone wire and made sure to land the solder and heat shrink sections well away from any possible motion. I have replacement wire on order, but am tempted to run as is until it fails again…