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I bought my Ultimaker 2 (December 2014). We started printing PLA at 210 at a print speed of 35-40mm/s. Anything faster and it would skip and have under extrusion problems. After about 90-100 meters of printing we started getting under extrusion problems at 210 C going 35 mm/s. we had to change the temperature to 230 C and keep the slow speed of 35 to just barely make the print work. We had extremely bad issues printing overhangs or even closing top surfaces. Now we have to print at 235 C at 30 mm/s and it has started to burn the plastic when creating flat top surfaces.
Throughout this whole process we have cleaned out the nozzle using the atomic method multiple times so I doubt that we a clogged nozzle.
Extruder needing higher temperature to print PLA - UM2
in UltiMaker 3D printers
Posted
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I am having the exact same problem.
I bought my Ultimaker 2 (December 2014). We started printing PLA at 210 at a print speed of 35-40mm/s. Anything faster and it would skip and have under extrusion problems. After about 90-100 meters of printing we started getting under extrusion problems at 210 C going 35 mm/s. we had to change the temperature to 230 C and keep the slow speed of 35 to just barely make the print work. We had extremely bad issues printing overhangs or even closing top surfaces. Now we have to print at 235 C at 30 mm/s and it has started to burn the plastic when creating flat top surfaces.
Throughout this whole process we have cleaned out the nozzle using the atomic method multiple times so I doubt that we a clogged nozzle.
We also have PLA from ColorFabb.
Any help on this would be extremely helpful!