Destroyed print U2

[moltzau94 0]

I am experiencing problems with my Ultimaker 2. The first time in printed on it the result was good, not flawsless but good. But when I print something now, the result is always as shown below. Sometimes, it comes almost no material out of the nozzle. and im beging to suspect there is somthing wrong with the temprature. although it shouldn't be. I printed with PLA at 210 degrees (recomanded settings in the Ultimaker 2 PLA settings). and the heatedbed at 75 degrees. I have tried to set the degrees to 230 and the first time I did this the print came out fine (again not a hundred percent flawless, but i didnt expect it to be). now even at 230 degreas the prints behaves like the picture below. what am i doing wrong? (it cant be the settings in cura because the prints at the picture is the print of the "double heart voronoi" that came with the printer)

 

[gr5 2,167]

There are many possibilities. What you describe sounds like it might be underextrusion although the picture doesn't help very much.

You may be right about the temperature. You can test the temperature with this method:

 

You can test for other causes of underextrusion with this test print which must be done at 230C:

http://umforum.ultimaker.com/index.php?/topic/4586-can-your-um2-printer-achieve-10mm3s-test-it-here/