sashatinelli

Hi all! Our lab uses an Ultimaker 3. We only print out of printcore 2 as printcore 1 is damaged. We are currently seeing an inconsistency in material extrusion (we have changed the material a few times and are seeing the same issue), causing weak prints which break at layers where the material was not properly extruded (see images below). I suspect it may be a heating issue/ the core is not heating consistently during the printing process. The settings for the print below were: dense, fast (0.15) using Ultimaker White PLA. Print temperature was 205C and build plate temperature was 60C. Any ideas of how to fix this? Thanks!