I ran my machine all morning. Shut everything down and went to lunch, came back fired it all back up and now the Z axis will only move down. Any ideas?
Couple possibilities 1) Wiring gone bad? docs:blackbox-4x:faq-identify-motor-coils [OpenBuilds Documentation] 2) Grubscrews on shaft coupler rattled loose causing mechanical slippage when working harder to lift the Z axis