![Marlin PID Autotune Failing. After changing the hotend and heatbreak to copper and all-metal titanium, I've run the M303 PID autotune several times, but I always end up with this terrible oscillation Marlin PID Autotune Failing. After changing the hotend and heatbreak to copper and all-metal titanium, I've run the M303 PID autotune several times, but I always end up with this terrible oscillation](https://preview.redd.it/d4c4n9pqsdp61.png?auto=webp&s=f3fabf75ff91d87389673e824575ed326592eb6d)
Marlin PID Autotune Failing. After changing the hotend and heatbreak to copper and all-metal titanium, I've run the M303 PID autotune several times, but I always end up with this terrible oscillation
![Marlin PID Autotune Failing. After changing the hotend and heatbreak to copper and all-metal titanium, I've run the M303 PID autotune several times, but I always end up with this terrible oscillation Marlin PID Autotune Failing. After changing the hotend and heatbreak to copper and all-metal titanium, I've run the M303 PID autotune several times, but I always end up with this terrible oscillation](https://preview.redd.it/d4c4n9pqsdp61.png?width=640&crop=smart&auto=webp&s=6a8c7203fc67fc97d8ba70a8444e264a918127ec)
Marlin PID Autotune Failing. After changing the hotend and heatbreak to copper and all-metal titanium, I've run the M303 PID autotune several times, but I always end up with this terrible oscillation
![2.0.x] Due/Radds Auto PID Tuning Large hotend / Bed Temperature swings · Issue #9449 · MarlinFirmware/Marlin · GitHub 2.0.x] Due/Radds Auto PID Tuning Large hotend / Bed Temperature swings · Issue #9449 · MarlinFirmware/Marlin · GitHub](https://user-images.githubusercontent.com/209844/35762808-edd827e6-08ed-11e8-98ec-456ac18166be.png)