UM - Extrusion Problem

[pkim18 0]

Hello,

I have an Ultimaker and when I extrude, the machine seems to offset after a certain point. It would lay down about 4 layers of a part and then start laying layers in another position that is outside of what is supposed to happen.

I have a link to a video I recorded of what happens to better explain the situation:

https://www.dropbox.com/s/8ixliz2dbkt6eu1/3D%20print%20fail.3gp

Thanks all

 

[illuminarti 18]

It looks like you're skipping steps on the y motor. Have you tried lubricating the rods with a little light oil? Also try turning off the power, and moving the head around by hand, and feel for any tight spots. It may also be that you have a slipping pulley - most likely one of the two short-belt pulleys for whichever axis is slipping - it looks like its the y-axis?