Topic: Ultimaker 2 problems

My UM2 does not fuse the side layers together and the side layers and infill together. What is the problem?
I read on a site that i should use some sewing machine oil and tighten the small bands. Also try to ajust the nozzle size in cura. Any help?
This is the settings i was using in cura. There might be something wrong with my preparations in cura.


Alsocthe printer didnt finish the thing, but i checked the gcode and it was my computer who made that fail.
Sumary.
This problem^ has been here since the UM robot/test print was made. The robot was fine, but after trying with my own print everyting went wrong. ALL HELP APPREACHIATED
NEEVS.
