Ender 3 v3 set z offset not working July 8, 2019 16 32 64 128 Ender 3 v3 se z offset not working Ender 3 v3 se auto z offset not working Ender 3 set z offset Ender 3 pro z axis fix Ender 3 v2 stringing fix Ender 3 not printing correctly Ender 3 pro z axis not moving down