Worsening Prints And Grinding Sound in Ultimaker 3D printers Posted July 19, 2016 · Edited July 19, 2016 by Guest I'm not around my computer, so I can't pull the file with the exact information. As soon as I can, I'll reply with the settings. Changing settings within ultimaker (print speed, extrusion and flow) do nothing to solve my problem, nor does printing any parts of any size that I've successfully printed before yield better results. Whatever the problem is, it seems to have nothing to do with what I can change in the Gcode (otherwise the other things I tried to print would have come out like they did before). Now, this thing was used heavily for a few weeks, then all projects were put in hold, so it went into the storage cabinet for a little while. I recalibrated it times to try to fix it, and oiled the axis rods, but it hasn't sounded the same since before it went into storage. I will research more about replacing the teflon parts, but is it possible anything else might need replacing?