Possible Bug: negative steps/mm not working. Give compile error in case of negative steps/mm · Issue #12570 · MarlinFirmware/Marlin · GitHub
![1.1.9 & 2.0] (8-Bit) Retraction not possible / Speed drop with 500+ steps/mm +video · Issue #12922 · MarlinFirmware/Marlin · GitHub 1.1.9 & 2.0] (8-Bit) Retraction not possible / Speed drop with 500+ steps/mm +video · Issue #12922 · MarlinFirmware/Marlin · GitHub](https://user-images.githubusercontent.com/10061334/51206339-ded63300-1918-11e9-8a97-a15c403ba1b7.png)
1.1.9 & 2.0] (8-Bit) Retraction not possible / Speed drop with 500+ steps/mm +video · Issue #12922 · MarlinFirmware/Marlin · GitHub
![extruder - Is E-axis steps/mm resolution limiting factor in print quality? - 3D Printing Stack Exchange extruder - Is E-axis steps/mm resolution limiting factor in print quality? - 3D Printing Stack Exchange](https://i.stack.imgur.com/3mQeA.png)
extruder - Is E-axis steps/mm resolution limiting factor in print quality? - 3D Printing Stack Exchange
![Modifying Extruder "Steps Per Unit" Doesn't seem to work... - UltiMaker Cura - UltiMaker Community of 3D Printing Experts Modifying Extruder "Steps Per Unit" Doesn't seem to work... - UltiMaker Cura - UltiMaker Community of 3D Printing Experts](http://i.imgur.com/FNkPd.png)