I've have had my ultimaker in a few weeks now and everything has been fine and working well.
However now all suddenly i've been getting gaps in my print at the Z-axis.
It seems that the platform drops a few steps to much att certain times, or that it feeds plastic to little at certain layers.
However it isn't always the same layer, this can shift.
In my album i have uploaded a few pictures how it look like.
In the other album, i've have a few printed things that is from the begining, that doesn't show any gaps.
Notice the green and blue toolholders, it is printed from the same file from the sd-card, but the green one is printed a few weeks ago, and the blue one just recently printed.
You can at the gaps break the part very easily.
It doesn't care what color of filament, the gaps is showing in green, silver or blue PLA.
I've tested different tempratures from 190-230, it doesnt seem to affect it.
I'm now very tired of trial and error, what can be wrong?
Mecanic, software or what?
So what is your idees?