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Hello C. Thank you for your response! I did not expect that fast and such in-depth feedback. Yes, there were some warping on this model. I will try to print a single vertical tube and see what happens. If there are no errors then the warping can be the cause of this problem. All best, D

Hello dear UM community, Help needed! My colleague and I received our pre-assembled Ultimaker earlier this week for our design studio. It printed very well the first couple of tests, then yesterday the X-axis suddenly jumped 9-10mm to the left. This was printed using the latest version of Cura for Mac (via the UltiController). Then my colleague tried with a different STL and with Cura for Windows and the same thing happend (only at a different height and different lengts - 3mm off track). I'm including an image my third try (with the error happening at a different height as the others). All the belts are tight and I can move the XY axis easily. My settings in Cura (13.03) were: Layer height: 0.2mm Wall thickness: 2,8mm Retraction: ON Fill Density: 20% Print speed: 50mm/s Print temp: 210 Support: Everywhere Raft: ON Duplicate outlines: ON (the rest are the standard settings) https://dl.dropboxusercontent.com/u/3673145/photo.JPG https://dl.dropboxusercontent.com/u/3673145/Skjermbilde%202013-04-19%20kl.%2010.25.36.png With best regards, Daniel