d1rkster

Wow, so nice to get advice from experts. I checked the belts and the pulleys and I didn't find any extra friction that could caus problems. But anyways, to tighten the pulleys really strong seems to solve the entire problem finally. Thank you so much for your help. My UM2 finally generates really nice prints For any further comments. I'm gone for the next three days and can not check the forum unfortunately.

Hi Guys, Thanks a lot for the quick answer. I checked the belts and the pulleys for unwanted friction already and as well I tightened the pulley screws. But until now only these on the axes and not on the short belt. And maybe I was to frightened to tighten them really that hard. Even such a little thing can be very helpful device! I'll try this today and mark the pulleys and the axes. I hope SO much, this will solve the problem. Greetings and Thanks a lot Dirk By the way: Meanwhile, one should be able to see the pictures in my gallery. I was really just not validaded and couldn't upload thusly. Could anyone please check and tell? gr5 edit... dirk - to add pictures click 'my media' next to smile face

Hello Community I bought a new UM2, about three weeks ago. I have a big problem with drifting layers, so that my prints aren't normal in the x-direction. I know, this topic has been before, but mainly for ultimaker 1 and all the nice advicec aren`t very useful in my case. Since it's a UM2, I can't adjust the axes or belt tension. If I move the printhead per hand (machine off) I do not feel unregular resistance and I lubricated all linear bearings with sewing machine oil already. I even tried checking the G-Code of the failed prints. Some prints fail, some don't. In my pictures, you see my latest print. Printed in the order: Front item, middle item, back one. You see the first item being normal in the first 3 mm and the thr drift began. The secont one is perfect and the third one totally failed. I do not have any more ideas and I'm totally pissed meanwhile! If I knew 50% of my prints fail, I wouldn'n have spent that much money. Did anyone ever try, to change a UM2 by warranty? Would be nice to hear about your experiances! Greetings Dirk Ps: How can I post pictures anyway? Is there now way to just upload an image?!