Geeetech

I've checked and measured the Y-axis rectangle and it is good.
I've changed the belt so its not too tight which might have been a problem also.
Printed a test yesterday and it came out perfect. Will test more this weekend and see what happens.
Thanks again!

I've been printing some stuff with my Prusa that came out ok.
But when i try and print stuff that are higher (with more layers) it sometimes shift layer placement.
It's the Y-axis thats the problem (the axis that moves the heat bed).
What might cause this problem?
Thanks for all help! =)