![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
![Building the C-Bot 3d Printer : Part 38 : PID Autotune on RepRap Firmware, fix z-artifacts | AK Eric Building the C-Bot 3d Printer : Part 38 : PID Autotune on RepRap Firmware, fix z-artifacts | AK Eric](http://www.akeric.com/blog/wp-content/uploads/2017/08/print_compare.jpg)
Building the C-Bot 3d Printer : Part 38 : PID Autotune on RepRap Firmware, fix z-artifacts | AK Eric
![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)