Under Extrusion

[Teague 0]

Hi there everybody, i hope someone can help me before i lose my sanity with this one.

 

on my UM3 extended, every print has recently been printing the first layer perfectly, and then suddenly printing like it cant extrude properly (shown on the photo).

im using PLA 2.85mm, printing at 50 mps at 210 degrees as suggested by other forum posts, along with a print bed at 60 degrees that ive leveled more times than i can count in an effort to fix the issue.

 

any suggestions would be greatly appricated and to help get me printing again!

 

 

[zungara 10]

nearly same problem with my S5. After recalibrating the print core and manually leveling the bed the auto leveling function works fine again.