deformed printed shapes

[secondsky 0]

Hi all, i've this problem: I created with gcode with netfab and tried to print it Replicator g, but there is a problem of deformation.

I tried to print it in different size, and with different firmware, but always the same kind of deformation.

We use the ultimakersince about one mounth and we had never seen this problem before, like printing the staford bunny, but perhaps because it is a different geometry.

May depend by the tension of the belts that is yet too low?

Thank you all.

[mr_seeker 0]

Please try to upload the picture to bayimg.com or something similar, using google mail will result in the image being broken.

[secondsky 0]

Ok, I hope it work now.

[mm_build 1]

I would suggest trying the same .stl with a different slicer, such as Skeinforge or Cura

[Daid 306]

Looks like backlash problems. Could be because of to little belt tension (in both the long and short belts), or a lose pulley.